How to Heat a Swimming Pool with an Air Conditioner | Ask This Old House
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- čas přidán 27. 06. 2024
- This Old House plumbing and heating expert Richard Trethewey installs a device that will heat a pool with the heat produced by an air conditioner. (See below for a shopping list, tools, and steps.)
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Richard installs a new device that will heat a swimming pool for free using the excess heat produced by a central air conditioner.
Shopping List for Heating a Swimming Pool with an Air Conditioner:
Heat exchanger [amzn.to/2O4C6Uy]
PVC pipe, unions, and assorted fittings [amzn.to/2NVt1O3]
PVC primer [amzn.to/2PZfLud] and cement [amzn.to/2LHo2h8], for gluing together plastic pipe and fittings
T-fitting [amzn.to/2NZNfGm] with adapter [amzn.to/2ZT0VKt] and sensor well [amzn.to/31iPKax], used to regulate water temperature
Tools List for Heating a Swimming Pool with an Air Conditioner:
PVC saw [amzn.to/2ZPYXdI], used to cut plastic pipe
Pliers [amzn.to/2N9XzMm], for tightening threaded connections
Steps for Heating a Swimming Pool with an Air Conditioner
1. Turn off the power to the pool filter.
2. Use a PVC saw to cut out a section of plastic pipe leading from the pool filter.
3. Thread an adapter into a T-fitting, then insert a sensor well into the adapter.
4. Cut and dry-assemble the PVC pipe and fittings to connect the pool filter to the heat exchanger, and from the heat exchanger to the water pipe leading back to the pool.
5. Once you’re satisfied with the fit of all the parts, glue the pipe and fittings together with PVC primer and cement.
6. Connect the pipe ends to the heat exchanger using threaded unions, not PVC cement.
7. Hire a licensed refrigeration technician to connect the air-conditioner refrigerant lines to the refrigerant lines on the heat exchanger.
8. Once the lines are connected and pressure-tested, the refrigerant lines must be recharged.
9. Hire a licensed electrician to install the master controller to the exterior wall of the house. The controller acts as an interface between the pool pump, heat exchanger, and air conditioner.
10. Turn the power back on.
Richard installed the HotSpot FPH pool heater, manufactured by HotSpot Energy [www.hotspotenergy.com/].
Expert assistance for this project was provided by Alternative Creative Energy & HVAC Inc of Blackstone, MA [www.aceandhvac.com/].
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How to Heat a Swimming Pool with an Air Conditioner | Ask This Old House
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This was an exact replacement for the old one that lasted about 10 years. czcams.com/users/postUgkx7yWIKcrbA9KMHkGSfcgxW2lsjHT6B8Sh The top of my mitigation tube by my roofline was just a 90 elbow which allowed too much debris to fall down into the fan, eventually ruining it. Without this issue, I bet it would have kept running another 10 years. When I replaced this fan, I added an extra elbow joint so the top tube now it does a 180, which should solve that problem. The radon guys around here wanted to charge me a $300 diagnostic fee, then parts/labor (probably close to $600 total). I installed this all by myself in about an hour for the cost of the fan; it would probably be even easier/faster with two people. FYI the manufacturer's warranty greatly differs depending on whether you install it yourself (1 yr warranty) or have a licensed installer do it (10 yrs).
No clue why I'm watching. I have no pool 😆
@Daniel S I can't make waves... No pool ;(
Peter Jr there is a very similar setup to extract heat for residential hot water both during the summer (AC) and winter (heat pump). Approximately 25% of energy required for hot water (residential) can be obtained per compressor. More than one AC unit can release their heat to a single heat exchanger.
Peter Jr I have a pool but I don’t need this because I have something that’s called summertime and sun
Peter Jr Now You Have To Get One... ☝️
🔮I See One In Your Future
#ComeOnDown #GraciousFloridaLiving
YOUandMeRealty.com
I don’t even have an ac
I onced stayed in a hotel in Thailand that used the air conditioner to heat the shower water. Made so much sense... you get super cool AC and super hot water.
It most likely did. Because the AC there runs almost 365 days a year.
Yea it was straight forward, with 20 + years experience it was a piece of cake.
ha ha! correct. Trivial thermodynamic engineering. Anyone can do it.
Imagine how even more efficient it would be if he cleaned that condenser!
I had a heat exchanger for 17 years on my heat pump. It made hot water for free and made the heat pump very efficient.
Did it YEARs ago. Dale... Works great. In FLA with a pump I could reverse it to coo it in a hot streak. Lovely.
Did you DIY? What was the cost of materials?
It's great in theory to transfer heat or cooling to save energy. I always scratch my head in winter when running my refrigerator in my heated kitchen when it is -20 outside. But this after the fact retrofit looks every expensive and complex. Much better if it could be installed when new.
It is a better idea to use sweep elbows (gradual bend) than those sharp 90's. High volume pumps strain with sharp bends, ball valves or any type of flow restriction for that matter.
We have the Hotspot exchanger for our hot water and our pool. The condenser fan never even has to run and we’re recouping all of the heat we use to waste. It’s complex but not nearly as complex as having separate dedicated heat pump water heaters and heat pump pool heaters.
Do you have a link to what your talking about? I don’t have a pool but really like the efficiency idea of the water heat exchanger vs air
Man, the one time I would love to see one of his famous “cut away” props!
Very nice job, Richard. We LUV you guys!
Nice but I see a problem I'd have. I need the pool heated just before I need my AC (Spring) and just after I'm done with the AC (Fall). When I'm using my AC the pool is already perfect temperature.
David's so cool that the whole screen went blue!
This is an amazing upgrade.
I’d like to hear or see a follow up. How efficient is the AC running and what kind of temperatures are you getting in the pool water. Is there enough heat in the pool to take the chill off is it actually heating the pool on its own?
Wow grate way max out energy efficiency. I'm going to toss my window unit into the kiddy pool now. DIY professional.
Just make sure the kids are in there to maximize the results.
@@mirza6399,
Get rid of the kids. Now you are talking efficiency!
I laughed too hard at this....
Hahahahaha comments and all made my day.
Caught off guard by my own year old comment 🤣. Thanks for commenting pulling me back here and thanks for all the likes that makes my day.
Idk about you guys, but I can feel the smell of the pvc cement just by watching the video😂😂
This is a great video! Thank you
That’s brilliant, using tech that oil refineries have been using for years.
I did a similar installation about 15 years ago to my 3 tons A/C and pool. Installed a titanium heat exchanger , but no 3 way valve. I installed a fan cycling controller. Condensor fan would not run until water of pool got too hot, then would kick in by the fan cycling. I averaged a temperature of 85 degrees. Simple , cheap and effective.. btw, i’m a commercial / industrial HVACR tech.
What if the pool pump/filter are not close to the AC.
I've thought about doing it the same way you did. Did it ever make your pool too hot?
@@bobbyberger9928 it won’t. Pool is a massive heat sink
Hello Xavier, I am trying to decide to setup a pool heater in the method you did or maybe using the hotspotenergy's configuration. Not an HVAC tech by trade but have all needed tools and knowledge to accomplish myself. But I need one piece of information to help make the decision between the two configurations and I bet you know this information. I imagine that the most efficient compressor operation would occur by using only the heatexchanger and not the condensor. The question is: How much heat rejection occurs from the condensor when the fan is not moving air with the heatexchanger rejecting heat to the pool water? With the condensor still in the circuit with the heatexchanger is the heat rejection from condensor and heatexchanger ratio be something like 10 percent from condensor and 90 percent heatexchanger? Really appreciate your assistance.
Wow this is very Incredible I believe this can also be a heating method for a concrete hot tub 😎😎
i love it. great idea. great invention.
You guys are the best. Thank you very much.
FINALLY! I have always wondered why people never installed similar setups
whats the point of heating the water in a warm day that requires an air-conditioner!
the water would be warm already
It actually takes about 3-4 consecutively hot days to get the water warm.
Also swimming at night when it is cooler out you want the water to be at least 30c
It's just that this system is pretty complex with multiple extra leak points, plus it's fairly expensive and it won't make much of a difference in temperature for an average size pool.
ahmad al-sabbagh, you say water is warm on a warm day, but that’s not really true. Your body feels water to be “warm” as it approaches high 80 degree temps...which almost never happens in most climates without water heaters. Even if the water were at body temperature, 98.6° it would feel very comfortable...not hot, believe it or not. And water would even more rarely get to these temps on its own without some help from a water heater.
Chargèro I won’t let my family heat our pool water. I hate Luke warm water on hot days.
Hi, thank you very much for the wonderful idea, I tried the exchanger link , but it takes me to Amazon with general heat exchangers, not like this one
I really want one of these for my pool. It is so amazing to be able to use that waste heat in this manner.
Learning from the PROS!
In australia it was common to have an array of black pvc lines on your roof, turn the pump on around 10am and let the sun heat the pool while cleaning
We just let the sun shine on the pool
For those who have never owned a pool or worked on air conditioning, the idea is simple. The average pool gets only a few hours of direct sun and even if it does get to 90 or 100 degrees outside, it's only for a few hours. The rest of the day figures into the average, which for half of the USA means temps well below 80 and probably into the 60s during the wee hours. Net result is pool water might reach the 80s by July or August. The typical pool heater is 300, 000- 400,000 BTUs, which can raise the water temp quite a bit, but at what expense? OTOH, the AC system is cooling the house and holding down the humidity during the summer months. OK, a 4 ton AC unit can throw 48,000 BTUs into the air or into the pool. Doesn't sound like much but that can likely add 5 - 10 degrees to the water temp, which would otherwise be wasted. IOW, it may not be enough heat to do away with a conventional heater in those areas where they are common, but it is enough to take the edge off, temp wise, and likely shave 15 - 20% off the pool heating bill by reducing the use of the main heater. BTW, if you have a pool with a heater (that you use) then you already know how much you spend on gas. The flip side is the AC is not working as hard because it's dumping the extra heat into an 80 degree pool instead of 95 degree air. Also, there's no reason one couldn't use a conventional pool heater in tandem here by setting the t-stat a few degrees below the AC system's point. IOW, if the AC system can't keep up then you use the main system as a back up.
80 degree pool ... ugh, why have a pool if it is going to be that hot? We used to have a pool when I was a kid in Texas where the summers are hot. I don't recall the water getting up to 80 degrees. The point about 90 degree water versus 95 degree air is a good one, but the gas is what about 250 degrees or so ... the only difference is the heat exchanger, and the one in the A/C already is specifically designed for the job - the add-on unit is an unknown.
Everyone who heats a pool has their own reasons but the most popular reasons are for old people with poor circulation and little kids with blue lips. That said, in the northern states where pool season is shorter, heating a pool is a good way to make it usable on those marginal days early and late in the season. Another reason to use the AC style heater is based on the typical New England weather where we get as much humidity as say Florida or coastal Texas, along with lots of trees keeping the pool in the shade. 80 degrees outside doesn't sound too bad till you have 95% humidity. Make the night temps closer to 60 and that pool temp will drop quick, so might as well dump the heat from the AC somewhere useful.
justgivemethetruth, dude, water doesn’t start to even feel warm until it’s above body temp. You would have to have water above 98.6° to start to feel “hot”.
I don’t care how hot the air temperature, even in Texas, pool temperature water probably feels comfortable between 85 and 95°...it’s still colder than your body. Your body will slowly lose heat and still cool you down. Especially if you get out and experience evaporation on your skin (admittedly not as much in humid Texas)
rupe53 no the system is at 48,000 btu of COOLING capacity after the liquid refrigerant is turned into a vapor then run through specially designed radiators. This barely puts out any heat especially after the refrigerant is put into a 1/2 pipe and the pressure drops causing the temperature to drop thermodynamics. This is an item that is great in theory but does not actually work.
Apologies for bringing this comment back from the dead - but is it confirmed that this could run in tandem with a pool heater? I’m envisioning using this setup where the pool is initially heated by the AC unit, then the pool heater serves as the backup in case the AC unit doesn’t heat the pool enough. Sounds like from your explanation that this is theoretically possible?
I’ve seen it all now!
Brilliant. I love innovation 💡
Thank you for such genuinely useful videos.
Good luck servicing that filter.
Seriously, why would they run the lines like that? Ridiculous.
Which filter? The brownish one or the pump one?
monumental observation.!!!.. for them is out of sight out of mind until the sucker service tech shows up.
yeah and why point the temp sensor against the wall?
had not noticed....NOW it's all I notice !!good eye
Dang you good with that 2” pvc, it always seems to be my nemesis
I have a pool and would live this!
Sounds like an excellent idea. Including the added coil heat.
Any 'expert' who mounts the temp probe facing the wall, so if it ever fails you have to cut a bunch of pipe is an expert to run from.
Looks great
Brilliant ! Provided your pool equipment is close to your a/c
After testing and some careful calculations it was found to pay for itself after 18.5 years.
Who's calculations? I find it difficult to believe. Pulling cold out of a swimming pool is going to take a lot less energy than pulling cold from hot air.
You aren’t pulling cold out of the pool. Heat transfers to cold. Not the other way around.
@@reed311 you’re pulling heat out of the refrigerant into the pool. But my point is it’s easier to pull it out into pool water than hot air. Both because transfer of energy is greater with a liquid then gas, but also, because transfer of energy from hot to hot is less efficient then from hot to cold.
Now factor in system repair and maintenance costs.
Yes. Water is much more efficient at moving heat than air is. My family business used to make air to liquid intercoolers. Marine air conditioners are highly efficient as well
The irony of this is if you have your air conditioner running the pool is probably already warm enough
Waskel E. Wabbit it's been in the 80's but my pool is 74, which is a bit cold. 82+ is comfortable. I'm running my AC some. Would be nice to dump that heat into the pool.
I would think it would take less time to drop the temp of the AC coolant with water than with air. Perhaps the compressor wouldn't have to work as hard or as long, and you'd save a tiny bit of energy, but not much. However, IF the pool needed heated, early summer specifically, and depending on the frost line in your area and ground temp, it could be beneficial. Really depends exactly where you live. Probably not worth spending more than $200 on though.
Clearly you don’t own a pool
@@rickysheep93 but I do
Really depends on where you live....
If you live in Arizona, probably not gonna need this.
If you live in Iowa... would probably come in handy for a few months of the year.
That is a great idea and money saving too.
Moonshiners technology is used for this. It's a worm that the shine travels through after the thump keg.
They forgot to tell you that you have to adjust and add to the refrigerant charge to compensate for the 10 to 20 feet of lineset coiled in the heater. And I'm assuming when the 3way valve closes off the pool heater circuit the refrigerant just stays there in the loop so it doesn't effect the normal operation of the ac. Makes sense.
How do you make the water not get dizzy going through all those bends??
Slap some motion sickness patches on to the copper pipes, problem solve, you're welcome.
Maybe the same way figure skaters don’t get dizzy when doing spins?
I solve that problem the way I solve all my problems: hitting and yelling at them
Add dramamine to the pool water.
great idea
I can see the sense of using the waste heat to heat water for faucets and such
That was an awesome video. You folks do the best repairs and money saving videos. Thanks for sharing.
How to use the ac to heat pool if it just happens to be 6in from it.
Seems like it would also save on AC since the condenser coil in the pool heat exchanger would be at a lower temperature than the air-sourced condenser coil in the AC unit. Thus the reason for heating the pool, to begin with.
That’s brilliant
Why would you need a heated pool when you’re using the AC. Seems like the incorrect time to need the pool heated.
If you notice he keeps pointing to the insulated line which is the suction line in a/c mode, but he keeps calling it "hot gas". This unit is probably a heat pump. Therefore this unit would be running on cool days to heat the house.
If you had a pool you would understand. It may be 85° outside but if the pool is shaded or there are clouds that water will be cold as balls (in the 70's). I have been running air conditioning for 2 months and my in ground pool is still only 80° which is still too cold to be comfortable... this sounds awesome to me.
Just run it to your water heater.. everyone has one and use it all year round
The true efficiency comes from the ac running easier.. unless you were going to heat your pool anyway. This is not a cheap project regardless.
Grew up on the swim team, I don’t have a personal pool though. But when I get in the pool on a hot day I want a nice cool pool. Yea it’s cold at first but perfect in 30seconds.
To answer your question at the end, they do and have been making water cooled condensers for decades. It must have access to cool water at all times. Mine in Florida is fed by my well water. If I want to heat my pool, I manually divert the valves to the pool and away from the well and back when my pool is a warm 90º. This is called a GeoThermo system and is very efficient.
ingenious!!! thank you for this video!
What a neat idea. Now all I need is a pool.
He said it will cost him the same to run the AC unit, he just gets to heat the pool for free. That's not entirely true...It's actually better: He gets the pool heated for free, yes, but the AC unit runs more efficiently, therefore draws less power. So his electric usage/bills should go down a bit as well. Sweet :-)
Main benefit is coolong the AC.. Very minimal water temperature rise at such low btu's
Yes and in 30 years the system would have paid for itself, what a fantastic deal.
There are more factors than that. Eventually, if the A/C runs a lot, the pool also will become too hot, and you will bypass the pool or risk having a hot tub instead of a pool. So the savings is on those early hot days when the water is cool and needs to be heated. I would personally set it to stop heating at 84. Occasionally even up north my pool becomes too hot, over 90 degrees.
msears101 you didn’t watch the full video. There’s a control panel for the water temp that manages the temperature it’s not just running constantly.
@@rickysheep93 you misread. My comment. I know it can control the temperature. Actually my pool controller would do it. I need to heat my pool mostly when the A/C is not running. All the savings would only come when I want to heat my pool and cool my house, which is a couple of weeks per year. The pool gets too hot eventually just from the air temperature and the sun shining on it. Therefore I need still heat my pool another way when it is late or early in the season.
Seems like a good setup, it what about when my pool system is in the back and A/C is on the side of the house?
You would have to run a bunch of refrigerant piping or a bunch of water piping to connect the pool equ to the AC
Stephen W id go with the piping that doesn’t have you running refrigerant around an entire house...
Drainage fitting on pressure application :-). Hurts my pool guy ❤️
Nice
Started out "That's not too hard, I might look into that." "Moved to, uggh, licenced AC guy, more $$", then onto "Master Controller will interface with 3 system"...... I said fuuuuuk that. Back to my DIY PEX heater.
Lol that's a good one!
Besides, we have good insulation and the house is not bad enough to run a AC, so I would have to run it for the pool, and the house would be cold.
You can just drain the coolant into the air. Just leave the neighborhood for a couple hours.. The earth is doomed anyway
@@zippySquirrelface the earth is never doomed, only the things living in it. Earth is designed to stay at its equilibrium at ALL times and ALL costs....But I get what you're saying...SHTF for 2020! :-)
@@philindeblanc hopefully. Mercury was a planet with an atmosphere at one point. It's now a wasteland because the tipping point was past and the atmosphere escaped.
Someone named Joshii did a review of the system 5 years ago and these were his costs:
"The installation costs were high but not surprising, considering I live in the northeast.
The FPH unit cost $1800.
Plumbing cost $500, $250 labor, $250 materials. I had about 60' of additional PVC runs to make.
Electrical was $500, $300 labor, $200 materials.
HVAC was $1200, $800 labor, $400 materials.
Total cost was $4,000."
www.troublefreepool.com/threads/hotspot-fph-ac-heat-reclamation-pool-heater-a-review.84669/
250$ plumbing materials for a couple of 2" unions, 90 degree angles, straight pipe and a T? Sounds like this gentleman got ripped off.
@@c31979839 In my experience if you call a contractor, it's $250 - $500 minimum for them to step in the door, no matter how small the job. There is a lot of overhead with every kind of government regulation and tax eating into their income.
This would work great in Florida. We run the AC nearly year round. Of course try not to get ripped off the the HVAC guy. That tends to offset any money you would save.
Water is “warmer” on a warm day, but that it’s not really “warm”. (Unless your in Phoenix in the summer) Your body feels water to be “warm” as it approaches your body temp...which almost never happens in most climates without water heaters. Even if the water were at body temperature, 98.6° it would feel very comfortable...not “hot”. And water would even more rarely get to these temps on its own without some help from a water heater. You might want a “refreshingly” cool pool, but eventually, anything below body temp would start to feel cold as your body loses heat to the water. So if you want to get in, cool off, and get out, then skip the heater. But if you want to slip in and enjoy longer comfortable pool time, then get the water closer to body temp with a heater.
I'm thinking this would be a great solution for people such as myself who live in rural areas that use propane to heat the pool. May be a higher upfront cost but it would pay for itself in a few years countering the cost of constantly filling our 500 gal propane tank.
I agree our pool is going in next week and I’ve been looking for heaters but don’t wanna burn all of my LP for the kids to swim.
This is a great idea. I wish my AC unit was remotely close to my pool.
Lol mine literally could not be farther away from my pool, unless I put the pool pump on my neighbors property.
I love it ... the observation I’d make is that when it’s hot enough for the air con to be turned on in my house, the last thing I’d want is for my pool to be heated ! It gets hot enough as it is !
Again thered the temperature setting in the pool when it calls for heat it turns on the bypass allowing for the refrigerant to go to the heat exchanger.. so if it's a hot humid day the pool wouldnt be calling for heat therefore the a.c. runs like a typical system does.
this might be the coolest thing i've ever seen!
Wonder if it can also cool the pool. I went swimming in a pool that had been baking in the sun on a 100 F day. The pool was probably around 75 F - 80 F and it was too hot to enjoyably swim in.
Sounds great but! I need my pool heated when it's cool. And when its cool the A/C wouldn't be running.
if you have the room they sell a soler heat exchanger looks like a giant inflatable raft with all the chambers filled with the pool pump than going back to the skimmer. my old company used to sell a version of it czcams.com/video/luhvKNUS7zg/video.html
MIC DROP!
Consider a wood fired pool heater. There are plenty of home made ones on CZcams that are cheap and really effective.
@@matthewbestdfghy if you can have a burn permit a lot of this old house takes place in commiechusetts land of the massholes conrad is tp lol
If it’s cold enough to where your ac isn’t running at all, I highly doubt you’d be in the pool. This is very useless for the majority of the tone the pool isn’t warm, but the outside is still warm enough for an ac to run
I saw on CZcams where a person laid down infloor heating styrofoam and then laid in the flexible tubing then built the flor frame for the pool (along with rebar and all) and then pour (or shot in) the concrete. Then hooke it to a solar hot water heater and no matter the temperature outside, the pool is heated regaurdless
seems like it could go to your hot water tank when the pool doesn't need it, so that you basically are always using the heat from the AC for something useful. This is a cool idea
Why didn't you make the connector pvc piping shorter? It doesn't look very good with the exchange unit hanging off the edge of the concrete pad.
Great solution. But that condenser coil looks filthy. :-)
That’s cool you can heat it like that!
That’s awesome
“There’s actually this ingenious invention…” shows a basic shell and tube heat exchanger that’s existed for over a hundred years.
wow, no more shrinkage jumping in that cold pool! haha
Meerscan you know about the shrinkage?
1:13 the way the guy said "Great" you can tell he zoned out at the beginning of the explanation.
great video, would have liked to see the temp difference
I could see this being economical more down south, but in Wisconsin where I live the little bit a outside condenser would be running is minimal. Would be interesting to know how it would work with a heat pump. In Wisconsin a heat pump would run more then it would in cooling mode. Would be interesting to know if you could heat demostic hot water threw a heat pump.
3:27 “I’m Blue, Da Ba Dee!”
😂
This is awesome, I just did a hybrid water heater and am ducting attic air to help it’s efficiency in summer, this is a great way to heat my spa, it’s a big one and I hate heating the spa whole cooling the house, this is perfect!
So when the chlorine puts a hole in that coil (and it will) you’ll have refrigerant in the pool water and chlorine in your system sound like a good idea. Whoever their HVAC tech loves this method $$$
I thought about that too. But this isn’t new tech. If it was a problem, I’m sure it would be very well known by now.
SNAKE at 0:30 . in the corner near the house!
Kshwizzle can’t see it
It’s a shadow
I'm glad someone noticed it... I was gonna post - asking if anyone noticed the snake. Good Eyes! @kshwizzle
I wonder how much it cost if we have someone professionally do it
This is interesting, but what about when the pool is cold/cool but the house is comfortable? I found an efficient pool heat pump (it will also chill the water if it’s too warm-this never happened to us yet!) It the Hayward HP50HA. It takes longer to heat the pool than a gas heater, but way cheaper. The heat pump was about $1400 delivered. Had to run a 220 line to it.
understand now that I rematch ed the video and your comment thanks
The refrigerant lines were opened for the additional connections and brazing.
I think that should have been done under CO2 and the system pumped down for the required time as measured by temp. and humidity. Maintenance of the vacuum has to be demonstrated before recharging. You don't just evacuate a system, open the lines, braze and then recharge. People wonder why their A/C systems aren't durable. If the homeowner doesn't have one already, this is a good opportunity to install a sight glass with moisture detector. I like them but guess others don't. We only saw seconds of brazing. I'm sure the tech didn't hold the torch in the same place too long. You can get away with that when soldering but not when brazing.
You braze using nitrogen not co2
Every one of these homeowners sound like they’re a robot. 😂
Because being in tv is super awkward lol
I did this with my 3 AC condensers 30 years ago. Used a Cupronickle heat exchanger on each one, mounted underneath each condenser. When doing the install, put a pressure switch on each line coming from the compressor to the condenser coil. So the refrigerant went first to the heat exchanger. This means that if the pool circulating pump was running all of the latent heat was removed, the pressure was lowered and the pressure switch controlled the fan. So the electrical consumption is reduced because the pressure on the compressor is lowered and the fan does not run.Meanwhile to heat goes to the pool.
This is a simple system, requires no control box, does not require the AC unit to be near the main pool circulating system as a simple 1 1/4” pvc line provides more than enough flow to deal with the 3 units, which total 6 tons , or 72,000 BTU per hour max.
Your changing the superheat and subcooling for the ac unit how does that workout
You would only need to wait 300 years for your savings to cover the cost of all of this.
Not quite. The average cost of heating a pool through electricity is 2100-7200 USD.
@@LRsnipes sure, but thats keeping the pool heated consistently year round. This idea will only work if your ac is running in the house. Doesn't seem very smart to me. Like others have said, you want the water heated when its cool outside. When its cool outside, your generally not running your house ac. Sounds a little backwards to me.
Google User it can be 90 degrees for 3 days and my pool is still cold and I’m from Chicago
@@GoogleUser-xr2hr This is supplemental heat, not primary heat. My AC condenser is sitting next to my pool filter. One is looking for heat while the other is looking for cooling. The heat exchanger combines the two for minimal waste.
But the payback question is a good one.
I don't see how it would be that expensive. It's just a radiator inside a plastic tube
Only works while the air conditioner is cooling and so little of heat being added its more like a talking piece rather than anything that would affect the water temperature.
increases the efficiency of the AC by a significant factor.
If you really wanted to increase efficiency then you would make a unit where all of the outdoor condenser coil is submerged and then it might actually make a difference on both.. it would then be comparable to geo-thermal air conditioning, but with such a small coil you can't expect much when trying to raise the temperature of that much water.
Same dream here.
Cool I like it!
I would think shedding heat this way, rather than depending entirely on the fan, would also drop the cooling cost, as the A/C doesn't have to drop the incoming heat so much. Plus, free heat for the pool. Apart from the $$$$ install cost, that is.
This was my thought as well. I imagine it would be much more efficient to transfer heat to water than to use that very power hungry (and loud) fan.
I'm curious how many years it took for this system to begin making a profit. Seems like good information to include. If it's hot enough to need A/C you don't need to heat the pool. Wouldn't a solar water heater make more sense?
Anyway, I know I'm dumb and if I was smart then I'd have a show lol.
My thoughts exactly. Seems maybe only in the beginning and end of season when the home gets hot inside but not exactly "swimmingly" outside. So, yes, how long for break even?
This could be good for a situation like my stepmom's. We live in Florida so you pretty much use a/c all year around, but her pool is heavily shaded and stays cold until June. This could add a few months to the comfortable swimming season.
@@JaxRmrJmr great, thanks for the info 😁
Not necessarily - I live in the upper Midwest and during many situations, it can be very hot during the day (80+, 90+ days) but temps in the evening can certainly still be cool - easily in the 50s. Pool temp can be down in low 80s and potentially even lower. Comfortable pool water temps (for us at least) is usually high 80s up to around 90 degrees - especially if you want to swim in the evening. You still need to heat the pool. All that said, I am wondering if the "refrigerant" Richard refers to is Freon. If so, that has been phased out industry wide and as of 2 weeks ago is no longer available on the market. Not sure if this system relies on that or not.
@@kevinkleinmann thanks that's a great relief to know.
5:50 not exactly Rich, when the hot gas is diverted to the pool heat exchanger, the condensing pressure (and running amps) will be noticeably lower than when using the air coil, so there will substantial electric savings
I've seen it set up the other way too, At the Air Base in Incirlik, Turkey they have a unit to cool the outdoor swimming pool, on really hot days in summer over there the air temp gets up to 140 F, so the have cool the pool to stop the algae growth in the pool. and when it's 140 F the pool is packed.
+Charles Damery That's deadly hot and algae can also be completely eliminated by uv light clarifiers in the pool plumbing and then you don't need any pool chemicals if properly sized.
They had the families of both American and Turkish military posted there using the pool, so they were really careful.