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Maybe this site can help: www.ubakus.com. Here is a screenshot as example from a question concerning inside wall insulation:


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This is a simple question requiring a complex answer...! What you are asking is the cost-benefit tradeoff of installing a heat exchanger. How much will you save on heating costs, vs what does it cost to purchase and operate the exchanger. And you wish to compare that to forced air ventilation. Factors to consider: Required or desired ventilation rate, usu. ...


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In my son's new build, he did a lot of research on HRV bc his is a hyper energy efficient new home. He selected Lunos modules (made in Germany, I believe). The American source is linked below. They are pretty pricey! I know this borders on a product recommendation, but just wanted to share what he found. I installed them. They have 3 speeds and 2 modes ...


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Given you are in a "primary cooling" climate, you might want the HPWH inside the building for additional "free" cooling. You could set up an exhaust vent for the non-cooling-season to dump the cold air outside when you don't want it. If you choose the garage and the garage location allows, dump the cold air on your a/c condensor in ...


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Not quite sure what you mean by "showing their age": electric water heaters either leak or don't leak and work or don't work (mostly). Predicting time of failure is difficult. I have a rental house that has an 80 gallon electric water heater that's probably about 40 years old and working fine. Others I've had to replace after 15 years. But getting ...


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