ERV / Discussions

...ERV ventilation systems to check with their munipality first to make sure it will pass. 

Our home was built in '45, most things updated in 60's/70's but with my health issues need to continue improving air quality- some return air/vents were completely blocked off by some not very intelligent homeowners - so air isn't moving properly in home. The electric isn't grounded (tech North America's electrical gro...

...ERV to see which type of unit may best suit your needs. This page about how to keep an HRV operating efficiently may be of value long term as well.

...erved by a single localized mini-split? As a brief aside - you mention an ERV, which may or may not be the best choice for you; here is our page on choosing between an HRV and ERV The Edelweiss House (where we installed the mini-split heat pump for heating and cooling) is a very well-insulated and airtight envelope, so...

I have high ceilings and I will be adding an addition this summer with normal height ceilings and a new stairwell to the basement. Should I arrange for a ceiling fan in the older part with high ceilings or will it be redundant with HRV connected throughout? If it were me I'd want a ceiling fan in the older portion of t...

I will be building a house in Atlin, BC (zone 3), and was hoping to have a wood stove as back up heat for my hydronic slab on grade in addition to the aethstetics and comfort it would provide.  However, the thought of punching a 2 sq ft uninsulated hole through the roof with a steel column running up through the centre...

I have installed 30 lunos dual systems that are operated with rocket switches never had any trouble but now I have one out of the two in an apartment that will not shut off and doesn't switch direction the other works just fine I figured out that unplugging the green wire connector on the troubled lunos will make it ch...

...ERV is best to install for your area. Hope that helps!

...ERV (I totally got sold on Zehnder) I have my doubts if it's overkill or "pointless" / can't find information using it in a log house. For cooling, it'd be a mini split system. Mitsubishi probably. Finally, I'm thinking of a metallic roof with thermobuilt insulation. Did consider a green roof but I'm not sure we'll hav...

...ERVs in a home without needing to undertake a dusty home renovation project and rip apart drywall, that would be a ductless wall unit ERV. There are a couple of companies that manufacturer ERV wall insert ventilation systems that only require running a low voltage wire to each unit. They work in tandem, where one unit ...

...ERV that may be well suited for providing ventilation to a tiny house or mobile camper van, which can be found in a choice of ductless HRV and ERV units ideal for Tiny Houses and Homes like converted vans here.    

...ERV system or reducting the basement. Using a Lunos ductless air exchanger  (or ProductAir ductless ERVs) to circulate air between 2 floors in a home would be a lot of money spent for nothing I think. Have you considered a ceiling fan? Or just a standard fan or two that blow in opposite directions? The intention of any...

...ERV (Heat Recovery Ventilation and Energy Recovery Ventilation), but it seems you’ve done that. If not, see here first – Which is best for a home, and ERV or HRV? Zehnder is widely regarded at the top of the line home HRV / ERV, and is often a choice for high performance builds like LEED, or Passive House where often n...

...ERV/HRV inlet air with a dedicated tube that runs through a heated slab? Similar to a geothermal heat exchanger concept. Yes, you can run what is called a ‘ground loop’ below grade to warm or cool incoming air to your ERV or HRV depending on the season. This is seen sometimes in extremely high performing homes or Passi...

I'm looking for ways to tighten up the envelope as I make improvements. One question I have though is does it make sense to install an HRV in an older leaky home? There are lots of articles explaining the importance of balanced ventilation in tight homes, seems like air quality could/should be improved in older leaky h...

...ERV (Heat Recovery Ventilator and Energy Recovery Ventilator for those not familiar) comes down mostly to climate, and a wee bit lifestyle, since an ERV extracts moisture from exhaust air. So it's a lot about the humidity levels of your climate, and therefore in your home. As for 'lifestyle' I mean, if you live a 'humi...

...ERV wall-insert ventilation systems are a great alternative to fully ducted HRVs with centralized cores. Particularly for renovation projects when you want to add fresh air but not rip walls apart for running ducts, all you need to provide to unit is a low voltage wire, see more here - Lunos Ductless Air Exchanger DIY ...

...ERV unit for our cold / hot climate?  How do you recommend we size the HRV or ERV? Which brands do you have experience of/ would you recommend (bearing in mind efficiency and power consumption)? To be clear, we aren't building a "Cabin in the Woods" like back in the day - this will be our 3000 sq.ft. main family home r...