Heater shuts down in cold weather-replaced heater does it again
3 years ago our heater would shut off in lower temperatures. We replaced the heater on advice from a heater and airconditioner repair company , a few weeks later it happened again. Every winter since then it will shut down in the evening and early am and continue until the temp get higher. We changed the pvc pipes to 3 inch thinking that would help but it didn't. Very frustrating, it seems it must be something outside the system (gas heater)