Gas water heater exhaust/ dryer exhaust.

[Jdavisson41]

Thanks in advance.

So, I have been trying to find the minimum distance between a dryer exhaust, a bathroom exhaust fan and the exhaust for my gas water heater. My gas water heater is a power vent. Haven't had much luck finding these clearances, assuming there is one between these exhausts.

 

[Breplum]

Bath exhaust should have a damper on the fan unit at the unit so confirm it works. (hey, my son lives in Spokane!)
There are not limits on exhaust spacing from each other except environmental (bath and kitchen) exhaust must be 3' from openable windows. Dryer vents 5' from outdoor A/C or heat pump condenser units (lint is the reason).
WH vent is what we call "forced vent" and only have limits from windows, air intakes and combustibles.

 

[Sponsor]

 

[Tuttles Revenge]

Both are exhausts so there shouldn't need to be any clearances per se. You don't want to exhaust next to air intakes or opening windows or the gas meter. The installation manual for the water heater will have a diagram with all the pertenant clearances for different scenarios.