This is what i am running.
Erv instead of bathroom fan.
Pair a supply fan with the exhaust fans another way to get balanced ventilation is to use the exhaust fans with controls and also install a supply fan.
Don t need a 200 cfm hrv in most cases even for large houses in terms of normal ventilation rates 62 2 2010 not 62 2 2013.
Often will add bath fans if the hrv size doesn t allow a boost rate of at least 50 cfm per bathroom.
Differing air flows through the hrv erv can occur due to pressures created by the central air handler in the trunks.
Alternatives to ducted bathroom fans wall fans.
A window is a simple option.
You don t have to worry about any electrical wiring or mold buildup because it is a.
I have a panasonic bath fan with a 30 min timer and a fantech erv set to 0 35 ach.
The dueling pressures can significantly reduce ventilation effectiveness.
We ve managed to set up the erv to run the exhaust fan continuously but this then causes other problems.
This system can also be set up to draw from bathrooms instead of hallways thus eliminating bathroom exhaust fans.
I m thinking of the qufresh fan made by air king.
You can do this with a bath fan installed to blow air into the home or you can use a fan made specially for this task.
Panasonic makes a specific bathroom erv panasonic whispercomfort spot erv fv 04ve1 the other alternative is to use both a bathroom fan for spot exhaust on a timer and a separate hrv or erv.
Put the bath fan in the 1 2 bath first then the bath likely to get used the least.