Heat Pump And Furnace Running At Same Time
Let s say it is 28 degrees outside the heat pump is running 100 as designed the home is maintaining 72.
Heat pump and furnace running at same time. If the heat pump is in defrost mode you can have the gas furnace going. The auxiliary heat electric resistance heat or back up heat is minimized since it is more expensive. One for the furnace and the other for the a c. Heat pump running constantly.
It s possible that if the weather is especially cold your heat pump could run near constantly without there being an issue. The fan s auto setting works with your heating cooling system so your fan is running the least amount of time needed at the slowest speed. But if you use it your unit runs the risk of toggling unnecessarily between heating and cooling. This option is much more cost effective because you are using less energy.
If you have a gas furnace and it was in fact running flames coming out of the burners at the same time your air conditioner was running then call a hvac repair guy. If you switch it to manual the blower runs all the time to circulate air. Auto fan is a separate setting and fine to use. Your thermostat prioritizes the heat pump run time to maximize the cheap heat.
Your heat pump will run most efficiently when set to heat in winter and cool in summer. If it s on auto when the heat or the a c comes on the blower comes on. If it s not in defrost mode that s bad. Here s how it works.
It s natural to think auto mode would be a more efficient setting. Since heat pumps work on the same principle as air conditioners during the summer months the costs to cool your home with either will run about the same 300 or more depending on your climate. Your furnace filter will last longer. Heat pumps are designed to work much more gradually than a furnace.
The hot discharge from the furnace will go onto the hot coil and cause the compressor to go out on high pressure. You don t want to run the furnace and the heat pump at the same time.