said by tschmidt:
Need to make a distinction between heat recovery devices and makeup air.
Yes. These contractors did not make that distinction, but it is an important difference, and that's why I am asking the question.
When I had contractors in to bid, they said if I needed makeup air for the three exhaust fans that I was adding, they would put in an HRV or ERV.
I told one guy that our old place had a duct from outside that came in to the furnace return air duct and he said he'd never seen that setup before. Another guy said to just connect the kitchen hood duct and the bath exhaust ducts to the ERV, but it didn't seem like a good idea to be sending steamy, smoky, greasy air through the core. I've been in other houses where they used an ERV for the bathroom exhaust but not the kitchen hood.--
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