谢提醒。Cheap80% single stage furnace一般没问题，也查过

来源: 于 2026-03-18 09:32:50 [旧帖] [给我悄悄话] 本文已被阅读：次

I even measured vacuum level from inducer motor. It is good. HVAC guy measured static pressure (before and after heat exchange) so to make sure air flow is good. He also measured temperature rise (inlet and outlet register)