my whole house only has one return air vent.
回答: return air or supply air? 没看懂。if it has only one supply air for
由 temptemp
于 2021-08-01 09:46:57
所有跟帖:
• return to where? -temptemp- ♀ (0 bytes) () 08/01/2021 postreply 10:13:02