I see that new houses (in Ontario for example) are built with HRVs, no bathroom fans, and recirculating charcoal filter for the range hood. This way, next to no heat is simply lost outside the house.
I have installed an HRV but I'm not sure if I should go ahead and remove the bathroom fans. I could install 20 minute timers to kick the HRV into high speed during showers. I'm worried that the one-way flap of the bathroom fans won't prevent outside air to be simply suctionned through the HRV, reducing the efficiency.
I'd rather keep the range hood ducted outside, but then again, recirculating would be more energy efficient and prevent negative pressure.
Thoughts? Preferences? Ideas?