Heat Pump Installation During a Major Renovation Project - What Is Involved?
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- čas přidán 20. 10. 2023
- #heatpump #airsourceheatpump #vaillant
In this video, I take you through an air source heat pump retrofit. We are installing a 7kW unit into a 4-bedroom fully detached house including for: new radiators, new pipework, and full UFH to the ground floor.
For booking please visit my website here:
www.urbanplumbers.co.uk/ - Jak na to + styl
If I was 30 years younger, I would love to apprentice under you.
Mate, no bloke is safe near him! He’s a Willy Watcher!!
Same here. He's a good all round teacher. Yet from watching this channel we are in one sense his apprentice like a fly on the wall.
My biggest challenge is that I am going to retire soon. I had my days 1989 condensing gas boilers (against all the neigh sayers), heating controls weather comp and optimisation, 1997 solar thermal, 2003 solar PV and 2006 I took on biomass. I rode all the government schemes, which had big high but also big lows. Over to next generations, great what you are doing, especially on CZcams, for all to learn from.
Excellent work as usual. To answer your question about the hesitancy in migrating towards fitting heat pumps. I figure there are many who have earned a good living measuring the mains supply flow and selecting an oversized combi and perching it on the wall - and getting away with it. There is no way you can fit a heat pump without a significant amount of work up front, in terms of heat loss and pipe sizing, flow rates etc. You cannot sling a heat pump in and expect to get away with it.
That’s exactly what’s happening, Cowboy installs.. it’s the next PPI scandal!!
Yes leave us alone no heat pump here
Awesome work thanks for your help and efforts.
Thank you for watching 🙏
Great vid as usual, well done
great video , again
Nice to see the retrofit underfloor heating being used. I am going to be installing it in my house in next couple of months.
I'm also interested in that. Does that usually go straight on top of the existing floor screed or does it need to be taken down a bit? Also interested to know if here are any additional insulation requirements for an existing concrete floor with no insulation.
cracking vid as allways
Correction needed on the thermal mass comment about the higher flow temps on the UFH.
It also has to do with the thermal conductivity of the materials between the water in the UFH and the surface in contact with the air. In this case, the heat has to spread among a thin screed and tiles to evenly heat the surface. This will show up in more pronounced banding in thermal imagery.
Thermal reactivity, or thermal diffusivity, is a combination of the heat capacity and conductivity.
Thermal mass is the amount of material and its specific heat capacity.
The thermal diffusivity and mass will give you what's often referred to as decrement delay, which is the amount of time it takes for a change of temp on one side to equilibrate with the other.
All subtly different things.
With training on ASHP installs free due to the grants available for most working in the associated trades, the biggest problem is the oldest one, MCS accreditation, it's always been the brick wall to any sole trader or even those who work as a pair.
Really enjoy your videos straight forward and informative.
Top job. You make it look simple. I hace no idea why oems are pushing buffers into UK market. Installers just need to upskill.
Help with system design!
i think its a confidence issue a lot of us struggle with especially self employed getting your first job and worrying it will work well, i do alot of gas, oil and refrigeration work on the isle of man but the heat pump sector ive been away to the UK to do all the training and ive fitted a few however they've been on perfect world jobs where the house is eco built so you could heat it with a candle so feels like a safety net that you cant get it wrong. would love to do the scales you are doing and your videos are brilliant nice to see someone passionate and knowledgeable in our industry
Great video as always, I rent and don't work in the industry, so I'm not involved with this kinda stuff at all. I just find it interesting/ relaxing to watch!
After meeting you at screwfix that time and you saying you was working at Adam’s at the time I ended up doing (almost finished.) the heat geek course. Now I think it’s the whole MCS but holding me back
Use an umbrella scheme. I use Vito Energy.
Love your videos. Would you be able to do a video on the heat pump survey process and the heatloss calculations?
It’s on my list
Really interesting that doubling radiator thickness is usually good enough for my house. I'm thinking of doing just that future proof it.
If you are into spreadsheets Do a heat loss calculator and compare rad outputs vs AVG flow temp, it will give you confidence of doing the right work. Don't assume the work at higher temps was done correctly in the first place also....
Biggest challenge for me transitioning from gas to ASHP , as a sole trader is making / getting that first install job, hoping that my understanding of it all is correct to ensure no problems for my customer . With gas there is more wiggle room for error, very little for Air source,
My biggest challenge is getting started, got all the qualifications but getting leads etc I’m struggling with. Got my first lead through this week that I’m going to look at. But it’s still overwhelming with it been the first one
My boss is the same, you need to install one to get MCS accredited apparently? But that means whoever you install it for won’t get the £7500 grant from the government for the heat pump. So trying to find someone willing to pay out the extra cost is incredibly difficult, impossible in the domestic sector unless you know a wealthy landlord who buys and renovates multiple properties
That seems an insane situation.
It effectively makes it an exam that costs 7500
@@richardmccann9293 most installers inflate the cost to cover that "grant". If I knew the guy did a good job, I would have used him, but he would have had to do it at pretty much free labour, with me only covering the materials and his travel expenses. Still up for a heat pump assessment if you want to do that. If you fix what our installers did not do properly, would it still count towards the MCS accreditation?
I Appreciate your Videos thank you it never occurred that the unit pump could do the radiators and all of the underfloor heating. So used to installing pump sets and thermostats supplied by Underfloor supplier. How did you check this 1st ? Thank you
Good call on the wall hanging being more straight forward. Do you have a preferred wall mount bracket? Any thing specific for vibration isolation?
I notice you just fit one frost protection valve right? Supplier has sent us 2 and instructions say to fit on both flow and return. Obviously in their interest to sell more! Does it depend on heat pump model whether one would be sufficient, and whether it goes on flow or return? Thanks for the great videos, learnt so much just in time for getting my pump installed!
Brilliant work as always, whats your stand when it comes to flow setting trvs? You managed to get the desired Dt anyway.
My biggest challenge when it comes to the transition is the paperwork that comes with jobs like this, are you using umbrella scheme?
Don’t see any need for flow setting TRVs, I use Vito Energy umbrella at the moment
What are your thoughts on Daikin heat pumps?
Can the outdoor units of split systems be located further away from the house, or do you need to keep them just as close for system efficiency?
I'd be really interested to see a vaillant heat pump fitted out with their eTRV's. Have seen a system with a boiler and how the flow temp is modulated when using them, but curious as to how the modulation works with a lower design temp and different heat source.
they would be a disaster on a heat pump install!
For Hybrid Gas Boiler & Cassette ASHP, Vaillant Systems incorporates at small Buffer/LLH.
Works great & very, very efficient.
@@UrbanPlumberswhat is the main reason for this?
Hi Szymon, I have installed 4 heat pumps via a national heat pump installation company so far. Really enjoying it. Biggest barrier to entry atm is the MCS scheme. Our business is too small to justify the time it takes to go through the MCS. That means we can’t offer the BUS scheme. Ie we can’t install heat pumps 😢
A lot of voices asking for abolishment of MCS
If the government want anywhere near 600000 heat pumps a year they are going to have to sort something out.
Szymon are you MCS or are you installing through Heat Geek ?
@sambutler927 I install through Vito Energy, an umbrella that is local to me.
Oh ok. Nice. Our local umbrella company won’t supply Daikin which is our preferred manufacturer. Might have to give Vaillant a try 😊
I did the calculations on an wet overlay underfloor system with my uninsulated slab and there would have been a large heat loss into the slab! 900w per hour wasted!
More efficient for me to run low temp hydronic fan convectors.
What ground temp did you use for your calcs? What losses did you assume per m2 at design outside temp?
We are coming into the heating season here in New Jersey and the weather watchers are saying long cold winter the sustained higher winds are already a real factor, I love the work you are doing but insulation and building preparations are so critical to the success of any high efficient system unfortunately efficiency here in the US is such a political issue it becomes difficult for the average home owner to afford nothing more than incremental upgrades and that is not enough.
Great video as always mate. Do you fit the vaillant wiring centre as standard?
Or can you just use the Heatpump interface?
Always have been using just the interface.
@@UrbanPlumbers ah I guess that’s the senso comfort receiver next to the interface?
Please can you (if the opportunity presents) show us all an installation for a small home? I.e one with just a conventional airing cupboard for the cylinder & associated plumbing.
Coming soon. I am doing mine own now which is a very small 3 bed house.
The more I look your videos, the more I think my idea to keep my gas boiler, on my floor and radiator system, and go hybrid isn't needed and will complexify the system for no reason. Flow is the key.
that was my original idea as well. But the more I installed I realized that gas boilers are really not needed at all.
My home is now running on a heat pump alone and never felt better in terms of comfort. It is also super cheap to run.
The videoi s coming soon.
@@UrbanPlumbers what about the MEH ? you never add them, trusting your calculations?
@Ulricdabe what’s meh ?
@@UrbanPlumbers Vaillant's Hydraulic station with electric heater
Hi I am a gas engineer in Portsmouth area and would love to move into this kind of work. Can I offer you some free labour ok one of your next projects? I have done a heat pump installation course but am struggling to make the leap. I have good experience in the industry after an apprenticeship at BG and now 2 and a half years self employed. Willing to travel and get stuck in to gain some experience.
Great video. Which thermometer do you use for the TD?
Testo 115i Just discovered it, this is a wonder !
Those testo clamps are amazing!
I'm looking at having a retrofit UFH ASHP system in my renovation project. I have an attached garage big enough to create a plant room. Would I need to section it off from the rest of the garage space and insulate it?
I presume that was a 7kwh Vaillant? In the video you didn’t show the adjustment of the flow rates for the ufh loops? I presume that that you had calculated that before you commissioned the system? Thanks for sharing!
Yes, it all gets set up. Too boring to show that part on the video.
Great video as always 👏 We've done two heat pumps installs and awaiting our HG platform access with the new setup, but my biggest obstacle is the customer. Recently had a gas boiler enquiry to replace an old back boiler unit and all radiators. I gave them an estimate on the heat pump along with the combi quote they requested. Seriously nothing in it really cost wise once the BUS and vat relief is applied .... customer goes for the combi. Madness and really frustrating when I genuinely see their best future proof option and best performance being the heat pump.
Hopefully our HG access will funnel us more enquiries in the heat pump space. Liam at The Heating People commissioned our last HG assured installation, top lad 👍
Yes, Liam is all right.
It would seem that education of our population is the biggest obstacle! Not helped by some biased press of course.
@@Ben-gm9loyou mean the over education of the population, people aren't stupid, the government grants won't be there for long, and your next heat pump will not be subsidized. Just quoted a customer for a new heat pump, she's not eligible for the grant as she already has one, 8k. Shes now going back to a gas boiler, total cost 3.
5k.
We are talking about replacing millions of gas boilers for systems that have to be set up perfectly to make sure the running costs are even or cheaper if you're lucky. There is nowhere near enough installers skilled enough to make this happen. We are already seeing the effects, I attend to properties every week where the customer is not happy with their heat pump. Have they been installed to the correct spec?...nearly always not, because either the installer just didn't have the necessary experience or training or the customer just wasn't aware or couldn't afford the necessary upgrades to the property to increase the insulation and get their heat loss down to the minimum requirement..
They are much more expensive then tradition heating systems, hence the 7.5k grants. They require huge upgrades to older properties, in a time where cost of living is at an all time high its ridiculous to try and shame people into putting themselves into financial difficulties to appease people like you.
If you have the money and a good installer like this guy, who is absolutely fantastic, and knows his stuff they work great, but the HUGE majority they don't have the money, the type of property suited to HPs or access to a expert like this.
Not to mention the elctrical grid is already struggling, as we are at the same time encouraging people to go completely electric with heating and vehicles....madness!
Not to mention the government haven't even got the contract sorted yet for the construction of new power stations which take at least 10 yrs to get them up and running.
Yeah people are just not uneducated enough that the reason?!.....🤦♂️🤦♂️🤦♂️ can't make it up
@@Ben-gm9lo Difficult enough to educate the industry what hope for educating the general population.
I love your content which is always top quality and very informative. I was about to install a 5kw aero therm plus in my modern 4 bed home 2.77kw heat loss at -7 but checked other systems and decided on a 6kw Ecodan which has a higher cop at both 35 and 55oC. Do you prefer Vallant because of the longer 7 year warranty?
Don’t go with EcoDan! It is inferior to Vaillant in so many ways. The unit is not as well build, ecodan controls are very basic as well. Company back up is better with Vaillabt and real life efficiency is also better with Vaillant, due to more advanced controls and more modern unit.
@@UrbanPlumbersI've found Vaillant customer service on their boilers to be inferior to Worcester and Baxi. In your experience, would you know if Vaillant customer service is better for their heat pumps?
@@UrbanPlumbers I can't reconcile a cop of 3.06 at 55oC for the 5kw Aerotherm verse 3.57 for the 6kw Ecodan. At 35oc the stated cop is 4.81 for ecodan verse 4.04 for Aerotherm so down 20%, so i'm not sold on the relative performance of the Vaillant. I have a 10kwh hess battery and 6.8kwp solar system so im ultra sensitive to efficiency and the aerotherm is low compared to most modern ASHP that use R32 on the market.
@DMFPERFORMANCE I would believe a word of Mitsubishi. For example they claim they units keep the same output no matter the external temperature and have no dip in output between 1 and -3.
Real life performance of mitsi I have seen has been much worse than comparable Vaillant’s. I installed one Mitsi eco dab and it was pretty underwhelming. Not even close to Vaillant.
@DMFPERFORMANCE heatpumpmonitor.org/
Really nice looking install mate. Just left a firm in which i did all the renewable installations. Im now selfemployed and do gas and oil. Need my mcs for renewable installs as whos realisticly getting hest pumps in without the grant!? And i think this is where the problem lies with me. The chew of getting mcs and having to keep that up along with everything else and keeping a good work life balance would be too much. Not to mention the grant situation itself. All the risk is with the installer having to front the £7500 upfront. Its a shame as i really enjoy fitting them and converting customers into believers.
You can always use an umbrella compnay. Check Vito Energy - they are really decent. (I install thoguh them). There is on way I would do my own MCS - there is not enough time for that. The whole MCS situatuion is just a bad joke. Some respected installers are calling for MCS to be abolished. I am not suprosed by that.
Can you please explain why the risk is on the installer with regards the grant? I am in Scotland so may be different, but the customer can request to draw down from the grant to cover deposit or an initial payment. The installer then just waits until they recieve this drawdown and book them in for an install. The client can then request the remainder of the grant when the install is complete.
I was recommended one by a rep. They charge about 1200 per install. I know there's no such thing as a cheap ashp installation (if done correctly) but do you find these extra costs mean winning or loosing a job? Educating the customer in exactly what's involved and the costs for doing so can be an uphill battle if they are on the fence with replacing say, an oil boiler, which would be cheaper of course.
I’ve just been Mcs accredited the initial outlay was about £2k then £7k heat pump I’ve install in my house. That’s not including all the hours I’ve spend setting it up. !
I always thought the grants were only claimable if the building meets a certain criteria anyway? Such as having a certain EPC etc, is that correct?
Do you prioritise the location of the outdoor unit over the location of the plant room or vice versa? I read that the ideal location for the outdoor unit is on a south facing wall but if that is miles away from the ideal plant room then can you install the outdoor unit on a north facing wall to save on the length of the primary pipe run? Would it have any kind of impact on the efficiency of the system? Thanks for your time.
south facing wall makes no difference. Air flow is the main priority.
Looks great. What happens to your flow rate when they turn the TRVs off or down in the bedrooms? Would it be better leaving the whole system open? I ask as I am just about to install UFH and Rads with a Vaillant ashp. I would like to run it open loop but I know the customer wants to close off unoccupied bedrooms.
Show them the heat geeks video / do the maths based on their property to show if / why TRV and micro zoning Is a bad idea
For years us Heating Engineers have been listening to all this 💩 about turning off emitters in unused rooms. Tell the Punters; ‘Heat always goes to Cold’, the heat will migrate from the hot Rooms to the cold ones. There’s no point in not Heating a room!!
@@TheDickPuller Yes I have told them it’s never a good idea to turn down rooms but Pete here has left the TRVs on, so they could turn them down if they wanted to and it would ruin the flow rate. And I know you have to have TRVs in bedrooms for Building Regs.
The large bungalow conversion I am going to do has five rooms with UFH and seven to Rads so I was thinking of piping the rads through an UFH manifold.
I don’t see a problem with TRVs. As long as they are used just to control rooms that may overheat and not to turn off the whole floor
0:23 Look after your hearing and eyes!
Can you please help me understand something about this specific heatpump model?
In the winter when there is no heat demand and the heatpump is just idling, does it keep the circulator running to prevent the water from freezing in the outdoor unit? Thanks in advance!
It depends. Usually it doesn’t have to unless the temperature outside drops below 4c. However some fully weather compensated set ups will run the circulator if outside temperature is below a set point even when heating is not yet required (flow temperature reached) or property is up to the temperature . It is more to do with the unit monitoring the flow temperature and not frost prevention
Is DT5 most optimized?
Nice video!
Dt5 and less. The lower DT the lower the flow temp required for the heat pump to run at. The lower the flow the higher the efficiency. That’s why DT5 is optimal provided the pipework is large enough. The lower DT the bigger the flow, so more pumping power is needed. If pipework is too small, pump power may be too big or it may not be possible to maintain narrow/ small DT.
Thank you 👍
So the heat pump system is a closed loop system for the underfloor heating and radiators and separate to the hot water system for the taps in the house?
The tank has a coil in it so yes the only connection to mains water is the filling loop.
where is your drain pipe going for the unit as I don't see a drain or soak away
Straight under the unit going to soak away
Does the retrofitted underfloor heating not cause problems with doors, stairs, etc?
Just trim bottom of doors, like you might have to for a new thicker carpet.
@@rogerdickinson6944 I guess that works for internal doors, but what about external doors?
Genuinely curious if this is an issue as I like the look of the system
@@jackbourner7965you will have to trim them as well. I have no clue about a PVC door but for a wooden doors it shouldn't be an issue
Traditional houses have airing cupboards as the hot water tanks were poorly lagged. Airing cupboards are useful places, at least my wife tells me so. I noticed you did not put a radiator in the old airing cupboard. We want to maintain the airing cupboard in our property with a cupboard heating supply, radiator, floor or both. How would you suggest we best do this?
The 2nd question - I am hoping our hot cupboard will be more efficient that hot cupboards of old. So what am I saying? What about venting the cupboard? It will be moist air as it will dry clothing etc, so do we vent straight out the house, there by loosing valuable heat? Or do we install a small dehumidifier that dries the air circulating it back in to the cupboard, thereby ensuring the hot cupboard retains its maximum drying capacity?
I would love your views. I see you have 161 comments, I suspect this video is fill time job let alone your day time job. Hoping for a reply. Excellent video for me as some one about to get a heat pump retro fitted to our new home.
A dehumidifier will speed up the drying of clothes in the cupboard.
@@DavidKnowles0 Thank you, how would you arrange to heating elements, radiator, coils etc?
What about setting a airing cupboard temperature control?
Would you insulate the airing cupboard to a higher spec, as it will be warmer than the rest of the house?
Loads of questions, it is great to get other people's opinions, it helps us reach a design spec for our new heat pump system. Thank you for commenting.
@@JamesRattray I don't know any of the details. When I was researching heat pumps dryers, I saw a article or a comment about people using dehumidifiers in aircupboards to dry their clothes and how it was so much faster.
What is the total cost to buy and install a heat pump in a 3 bedroom bungalow in Scotland. The costs never seem to be mentioned?
With current grants it’s cheaper than a low temperature system based on gas boiler
what's the model name/number for this vaillant heat pump ?
It’s Vaillant Arotherm Plus 7kW
Would you recommend phase change material heat storage instead of vented/unvented cylinders?
No, I wouldn’t. They are more expensive to buy and more expensive to run. Not really suitable for heat pumps as they require much higher flow temps
@@UrbanPlumbers thanks. How come they’re more expensive to run? Is it the higher temperature? As I understand it, they operate around 58°C, is that a lot higher than a cylinder? Is it difficult/expensive to get a heat pump to output that temp? Cheers
@janstaines5989 I would only use phase change material of a regular dhw cylinder was not an option.
@janstaines5989 also you will need a high temp heat pump to run at flows above 60c which is not very efficient and requires a propane (r290) unit
@@UrbanPlumbers thanks for the info, much appreciated
Do you know anyone who works in Australia? I’m looking for someone to design a heat pump replacement for my non-condensing gas boiler but the issue is that Australian houses generally aren’t well insulated so we have 23 kW boiler. I want to find out if this changeover is realistically achievable.
Sorry if my questions sound stupid rather naive when it comes to heat pumps, the only knowledge I have is by watching your videos, am I right in saying there’s different sizes of heat pumps ? My house is a small three bedroom house , looking at the houses you’ve done so far on your channel have been larger properties, it would be nice for you to do a small project and give some information with the cost of the different sizes of heat pumps if indeed there are different sizes,
Mine is small 3 bed. Video from my own installation is coming soon.
@@UrbanPlumbers oh sounds good, could you give the cost also, I don’t mean the installation unless you’re going to charge yourself, my boiler stopped working last winter so I’ve been wondering which way to go, looking at the cost of electricity compared to gas it looks like electric is four times more expensive to gas, I’ve even started having a gas kettle now, boil a kettle with electric = one pound, gas twenty pence , that’s my worry with heat pumps = could i afford to run it.
Heat pumps should be about 400% efficient.. so 1kWh of electricity will give 4kWh of heat... Also, a gas boiler is never 100% efficient... nearer 80% if they're set too high (as most are)... Your gas kettle example... how much of the heat goes into the kettle and how much into the room ?? Fine in winter, but in summer ??@@kavanobrien6547
@@kavanobrien6547 have you heard him talk about SCOP? his installs are getting a SCOP of 4, which basically means heat pump cheaper than gas to run, given no gas boiler runs at 100% efficiency.
@@Lewis_Standing My apologies for my stupidity, maybe it’s the way I see things , having had my bills over this last year from gas and electric = the gas bills as normal but the electric bills are ridiculous high , so I rang the electric company and asked several questions as one does to find out what is going on, the answers blew my mind , they said you must take into account that electric is about four times more expensive than gas , one of the examples they gave was boiling a kettle is an average cost of a pound , kettle on gas would be twenty pence, first thing I did threw the electric kettle out , retired now so only have old age pension coming in , I would have a heat pump tomorrow to do my bit for the green agenda but would not be able to afford to run it , irrespective of the efficiency of heat pumps compared to gas boilers , on paper everything seems and looks good , drive this car it will make you feel great, wear this suit it will make you look cool, the list is endless, talk is probably the only thing that’s cheap especially in this world we find ourselves living in at this moment in time = the universe doesn’t wear a watch, I digress, could you point me in the right direction so I could see on any channel were these are the bills having a gas boiler, now these are the bills having a heat pump, that’s really the only way one could compare.you need a whisky to get through this message , look at the positive at least it will keep you warm.
So because the radiators and underfloor heating isn't zoned separately, would you have the heating on constantly just having the thermostat set to a comfortable temprature?
No thermostat, just a wether compensated curve
@@UrbanPlumbersbut permanently on? Even if the temperature outside is 30 degrees the weather comp would just run it on a very low temp?
@@chester6343you set an outside temperature threshold where the heating stops coming on
Always on, but if outside temp is above 20ish the heatpump won't be doing anythng
@@chester6343you can set weather comp to switch off at any outside temperature. Mine switches off at 18 degrees outside.
Which heat pumps are best please? Daikin or Vaillant? Thanks
I prefer vaillant, but by far the most important component is the installer. Good installer will make any heat pump amazing. Bad installer will ruin the most amazing heat pump.
It’s a shame these installs seem to require so much space. With modern houses like the one I have space is not easily available. That and having things like small rads and pipes to the rads seems to make it impractical.
Dont need to have footings, just install with flexifeet on gravel.
You do, it’s in the manual.
Come on Ken, you’re one of the originals in this stuff, feet on gravel? That’s like some corner cutting Octopus base, you’re better than that. Although most manus go to extremes for base depths we still need to be doing a proper job. A good base is one of the things that separates us from the cowboys
@@bphr963 not required. At Vito we done many installs on gravel. Plus was doing that way before even went to Vito, tell me what the problem is with gravel.
Cars drive on gravel, a half cut 600mm slab on gravel is more than enough, where is it going to go ,,,🤔
It's not one of those stones in death valley.
Wow the amount of space needed to install that system in the UK to existing properties will be in extremely short supply.
The actual size of the external heat pump shown in this post will need to be a variable size as a minimum.
New homes great BUT existing UK homes NO CHANCE !
We install now 4 units a month - all into existing and period properties. There is always space if there is a will to adapt to new technology.
@@UrbanPlumbers I very much doubt that it is possible in the many,many thousands of terraced Victorian homes without enormous building alterations , costing fortunes , it is bad enough and impossible to install EV charging points.
The multi occupant dwellings originally built for one family now houses 2 or 3 families and if fitting a small EV point is hard enough or impossible fitting a huge heat pump and a water tank will be absolutely impossible.
As I have said new house okay but in congested area homes it is a no go.
It might be ok in the dream green world, but in the real world ?
Sadly having the will does not come into it, the cost and space sadly does especially for those who find it hard enough to find space for a pram and thats without considering mortgages or rent being so high.
Still doing gas boilers just too dear for my customers
the price for an air to water heat pump that can work in a -30 outdoor design temp is still really high in my area. Gas boilers are around 2-3 times cheaper than the cost of a heat pump.
Yes, buts what is the true cost of burning gas?
Where do you live with a -30 DOT?
Grew up and did my schooling in edmonton AB, design temp -40. Currently living in pemberton BC, design temp -23.@@inh415
I've asked three heat pump installers and they say that heat pumps and underfloor heating don't match. After seeing your videos its the opposite thing.
Underfloor and heat pumps are perfect
That house looks way too young to be needing a major renovation. When was it built?
It’s 40 years old
ASHP with no Solar PV = Wha...?!?!
With a smart tariff can still make good financial sense plus all the other benefits
I have mine almost finished as well and I am not intending on installing PV anytime soon. Instead, I have a cheaper overnight tariff (EV tariff) and will get some 10kWh battery storage and charge overnight. PV will be the last thing I will do.
@ryannowell3802 even without any tariff or PV out installs are cheaper to run than the gas systems they replace. If you have battery storage big enough and an EV tariff out set ups can be run for a fraction of the gas system. Obviously initial outlay on batteries is quite substantial.
@@UrbanPlumbers does rely on good installers like yourself to properly design the system to get a good SCOP though to achieve that. Unfortunately a lot of salesman out there making a bad name for heat pumps.
@@UrbanPlumbers Batteries are a poor choice of financial investment with current export tariffs. With the global wars, not looking likely that electricity prices are coming down anytime soon,
Instead, we advise our customer base to use the grid as a "battery" and invest in the maximum PV coverage they can afford to generate a £ credit that the heat pump will burn through the winter months. This only applies to professional installations like yours where you claim they will save over gas anyway. For
I know some people paying 1000 a month to use a heat pump in 2 bed house. And every one says they make loads of noise and cant heat the house up properly in cold temperatures. Heating pumps are just a scam
You know some people or did you just read Daily Mail again?
CZcams comments - the best place to find the fiction section.
@@UrbanPlumbers clearly you read it 🙄 why would I say I know people you utter weapon
Scamming plumbers says it all
Go back to your cave
That lady needs hearing protection eye protection and a mask. Take it from somebody who's trashed their lungs and they're hearing.
The biggest challenge for installing heat pumps is finding customers with some proper money and living in an affluent area, Theres just no way that an avaerage person in an avaerage house could afford a designed and efficient system.
Heat pumps and system design / install cost way too much for your average household and even with government grants you still need the space to fit it which most homes don’t have that’s why the gas boiler will always be king.... 👍
Who wants an ugly unit retro fitted to the outside of their homes?
Everyone with half a brain cell.
@@UrbanPlumbers
Maybe but also a decent amount of room for all the 'stuff'. My S London semi has only one rear wall and one side wall with no sensible room for a Heat pump. One could be squeezed between the rear kitchen window and lounge patio doors but behind that wall are two living spaces - no engine room for all the gubbins.
You can get A2A or exhaust air units.
We don't want this expense, noisy, useless heap of junk, why can't they leave us alone??
I agree - oil boilers are noisy, expensive and uselss. Get a heat pump - cheap to run and very quiet.
@UrbanPlumbers You having a laugh? My boiler is never noisy and even if it was a little noisy it's way better than the junk your promoting.
@@mosheridan7016 Clearly you've never been around a modern residential heat pump.
@BenIsInSweden No why?
@@mosheridan7016 because they aren't noisy, nor useless.
It looks good Dracula👍👍 Hmmm......20/LtrMin is a bit low, but if your getting the correct Delta T. Another thing son, that 8Ltr Primary Expansion vessel is too small.
Vaillant is good gear, their controls are great.
Biggest problem with ASHP installs & trying to get into that type of work. There’s Used Car Salesmen as middle men, between you & the money. Subbie to these cunts & you’ll never get paid!! As for Survey, design & install; if you know your Onions, it’s a piece of piss!!
It’s only another Heat Generator & the system needs to be designed accordingly. Nothing new in the Heating Game.
Well, I’m relieved to see you’ve not been Deported to Rwanda, with some of the other Dinghy Divers fella. Also, I delighted you’ve now got a Scottish apprentice. Give her any lip & you’ll get a Glasga Kiss ya Bawbag!!
1200 l / hour is exactly what you need for the heat loss. It’s on auto setting so will slow down a bit white warmer weather. (7kW at DT 5 = 20.20 l /min
Vessel is 12l which is correctly sized for the volume and flow temp.
She is not Scottish mate 🤦♀️
@@UrbanPlumbers Delta T 5C x 4.2 = 21..........7KW div 21 = .33LtrSec. .33 x 60 = 19.8LtrM.
So yeah I’d agree Dracula, What the ASHP ‘Sweet Spot’ on the Weather Comp chart?
Oh she’s not Scottish??!! She sounds it & with her name etc.
Keep up the good work luv!!!