HRV / Discussions

...HRV and ERV (heat recovery and energy recovery ventilation) HRVs and ERVs both exchange the air in your home and recover heat from exhaust air, but at variable levels. quality home ventilation systems have higher rates of heat recovery. Lower end models may recover 50% of  exhaust air heat, while higher end models typi...

...HRV is undersized. I have 3300 sq ft of living space, an air tightness of 1.5ACH and an HRV with 59CFM. Hope someone can clarify. Cheers To properly size a home ventilation system you really should have a professional, and you may need one anyway for permitting. We don't like to weigh in on topics that where you will n...

...HRV for our purposes.  The best ERV or HRV heat exchangers for tiny houses in cold climates would in our opinion be ductless wall-insert models. you can see them here in our green building products directory -  Find the best ductless HRV air exchanger for tiny houses in cold climates These types of heat recovery ventil...

...HRV to ventilate our tiny home and a compact ductless model like the Lunos e2 HRV looks ideal - but I'm finding the price of them to be too high. What I'm wondering is whether any equivalent models exist and do they come in at a more affordable cost? Ductless HRVs like this are for sure a great option, and particularly...

...HRV and ERV systems as it has a built in heat pump that can significantly increases its efficiency when in heat pump mode by extracting additional heat from exhaust air. One of the big benefits is that fact that as a single unit it provides heat recovery ventilation as well as heating and cooling all from one unit. For...

...HRV is set to Max. Is it possible that it is not functioning properly? Thanks in advance! The thing about condensation on windows, is that there can be a number of causes. 40% RH isn’t unusual, and at -30C its not a surprise you’re seeing condensation form. Your HRV is not likely the problem I don’t think, it’s bringin...

...HRV or ERV ? Do you think this house would have sufficient fresh air ?

...HRV or ERV in any home with a heating or cooling system. Homes need fresh air for durability and humans need it for health. So if you are either heating or cooling a house with no HVAC system you are left with one solution, opening windows. At that point, air you paid to heat or cool is ejected from the home with no en...

...HRV and ERVs during renovations, though I can’t guarantee how much it will cost. First though, you need to realize that rely on opening a window for fresh air will in the long run be an expensive solution to bring fresh air into a home, and when you aim to sell it you would likely benefit by having a ventilation soluti...

...HRV and HRVs, we don’t have a particular brand to recommend over another though there are a few options among ductless HRV & ERV units here.  Having chosen a unit, our install video might be useful, and this page also discusses the pros and cons of the system as well.  Ductless HRV and ERV ventilation systems DIY i...

...HRV clean and running efficiently, and if you need to replace it this page may help - How to choose between an HRV and ERV for home ventilation. Best of luck, we hope you can resolve this and regain your health.  Also, to discover if Air Purifiers with Hepa filters work, read the definitive Guide to cleaner indoor air.

...hrv system. We live in CT and I am not sure where to start. Thoughts?  Well first a clarification – your house may be tight, but is not TOO tight because no house in the world is too airtight. The less air leakage the better, and yes, you should have an HRV to remove moisture and provide fresh air. I would say you are ...

I'm hoping you can help me and my excavator come up with a way to have passive and heating added to my new modular home.  The modular is still on the assembly line, so the foundation has not yet been laid.  This seems like the perfect time to install earth tubes or some such system that will allow my home to be more pa...

Every wnter I get very sick. I threw out all my flowers and tore up carpet in out rec room and had them come in and professionally clean out our ventilation ducts. Last week a doctor asked me if I had a air exchanger and to check the hoses and see if there is any water in the. I did and they have been dry as a bone for...

I purchased a 2nd-story townhome and, only after moving in, I discovered cigarette smoke coming in through the framework from the downstairs neighbor. Outside of de/re-construction of the building to improve insulation or stand-alone air purifiers, I've had difficulty finding an effective solution for managing my indoo...

...HRV will transfer the humidity. Have a look on this page for more help choosing – Choose between an HRV and ERV, which is best for cold climates The major difference between the two is that an HRV transfers moisture either in or out depending on where its more humid, whle an ERV keeps the moisture on the side of the wa...

...HRV to reduce it by about 50%. Should that work? Would an ERV work and be more efficient? Any recommendations on brand, CFM? You can use an HRV or ERV to remove radon gas in basements and crawlspaces, but given that you say your levels aren’t too high and you have a dirt floor, covering that with a radon evacuation tub...

...HRV or ERV is important for any reasonably well sealed house to provide fresh air and remove moisture.  Any properly sized and installed ventilation system will do the job, but ductless HRVs for fresh air in older homes is a really nice option since you don’t need to do as much demolition and rebuilding for running duc...