Me Again,

With your assistance I purchased a high efficiency boiler for my super insulated, earth bermed, 30 year old home. Great even heat. Got my energy rebate. Plenty of domestic hot water. Had it stubbed off for adding Solar Thermal in the future.

What nobody, (especially that salesman) mentioned was with the external combustion air, all that warm moist air remains in the house condencing on my windows.

Solution found. Heat/AC recovery Air Exchanger (AE) with HEPA filter, appropriate for this climate purchased and installed.

Works great so far for dust, odors and balancing the house temp. The real test is about to begin.

The install instructions were a little vague and I want to know if it is a good idea to draw stale air off the bath rooms.

The AE has a drain for condensation.
In the old days HVAC rarely had a cold air return for kitchens and baths, so I'm wondering has thinking changed or is this a different ball game??

No vent fans in the baths. Just cracked the window when needed.


TIA
Always great to be wading in the Creek.