Smoke alarms (10) triggered by Furnance after Evap coil change
I had my EVA coil change after leakage. Today I just turned on the furnace, which is a propane furnace and all 10 smoke detectors almost immediately alarmed. I called the tech and he said that it could be Raul referred your rent oil. The kids could see a small fog inside the house, almost not noticeable. could the what could be causing this?