Evaporative Cooling Impact On Home Heating In Winter.
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- čas přidán 21. 08. 2024
- Evaporative cooling works well on dry, hot days but is useless on humid days. Because of evaporative cooling, heating your home can cost significantly in the colder months. Efficiency Matrix tested air tightness with and without evaporative cooling on a 15-year-old home in Melbourne, Australia.
The difference in air leakage in a home with evap cooling can be as high as 10ACH@50Pa, and in this video, we demonstrate how evaporative cooling can negatively affect a home's heating performance.
Having an evaporative cooling outlet in each room of a house is like having a chimney open in each room.
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#EvaporativeCooling #swampcooler #evapcooler
Nice one. In addition to the losses through the ducting, when assessing homes I frequently notice that the bezel of the vent registers do not make a good seal with the plaster ceiling. So even if the AC damper were perfect, there can still be air pathways into the roof void.
I have installed the magnetic heat saver vent covers and they work fantastic, so good i bought them for my mum and a friend and they are very happy. Depending on how many vents you have, it will cost around $250 for them to be custom made. Yes, you may put them up and find you have a hot week in March or April and and need t remove them and the same in September or October, but they are quick to fit and remove being magnetic. When my evap cooler dies, I will have it and the vents removed and have a refrigerant system installed under my house connected up to the ducted heating vents. That will make it a lot more efficient than running an air con system and vents in the ceiling where temps can reach extreme during the summer heat.
Blower door testing is an under appreciated tool for finding air leaks and improving energy efficiency..
Split system coupled with solar panels. If it’s hot you’re generating plenty of power anyway.
You can get covers fitted at each of the vents that work very well. Evaporator cooling costs a fraction to run compared to a ducted electric
As long as you understand that the costs of running an evap cooler also includes, poor performing insulation on your ceiling, and that from time to time during spring and autumn, when you have snap hot or cold weather, you may not be bothered to cover up the vents.
@@ecoevo how doe’s using an evap cause poor performance of roof insulation?
From our experience on job sites with evap coolers, the insulation is terrible, and it’s quite difficult in areas to fix the insulation when all the ducts are in the way. And if the roof also has ducted heating ducts, it compounds the problem.
@@chefgav1 You can't insulate the hole made in each room. The vent holes are larger than the hole made in the wall for a split system. You still need a window open to use an Evap if your house is airtight. Evaps won't work in more extreme heatwave or hot and humid conditions. Best to change over to a split system asap.
low ACH should be mandatory, why do we put up with this?
Do you guys know or recommend anyone in Perth on insulation installations?
An energy efficient home or business is more comfortable and saves money in the long run.
Solar energy on your roof combined with battery storage can make people more independent from the grid and natural gas supplies. Add solar and supplemental electric heating or a heat pump for home heating..
Added insulation, triple glaze windows, energy efficient doors, energy efficient heating and cooling systems, energy efficient appliances, LED lighting, smart thermostats, solar panels combined with battery storage and a electric vehicle charger in the garage or car park. People are too focused on the short term costs and miss out on long term savings and comfort. Blower door testing and air sealing are under appreciated tools.Even if you have money to burn you should not waste it. Climate Change will impact everyone. Leave a better future for your children and grandchildren. Join in and speak up for the future of the planet.
Yes and no . From a new build yes but from a retrofit it's a definite no. Sustainability Victoria have hundreds of case studies on lots of efficiency upgrades and something like retrofit fit double glazing has a ROI of 40 years
There is a multi HIA award winning Architect that focuses on sustainability and energy efficiency in ACT called light house Architecture. They have a project called the little loft house and it was to take a 0 star efficiency house and to turn it into a 7 star from memory and the project costed over 250k.Cant tell me that upgrades will make the owners save in long run
Yeah, but it doesn’t cost much to not install an evap cooler! 😀
@@chefgav1 I agree that the economics could be more favourable from a purely capital investment perspective. Still, the difficult part of the analysis is to put a cost on the health aspects such as cold, damp air in the winter, mould, condensation, asthma, etc.
Too many ducted systems severely complicate the building fabric. Simple is always better for air tightness and insulation consistency.