What Is the Difference Between Heat & Auxiliary Heat On a Trane Home Heating System?

A Trane heat pump can keep you warm no matter what the temperature is outside.

It's cold outside and your Trane heat pump is using its energy-efficient technology to keep your house warm. When a light on your thermostat comes on signifying your system is using auxiliary heat, your unit is using a supplemental system to generate the heat you need to keep warm.

How It Works

A Trane heat pump serves a dual purpose as an air conditioner in warm weather and a heater in colder weather. The temperature is controlled by setting the thermostat. Heat energy is always present outside, even in below-freezing temperatures. The heat pump extracts this outside heat and transfers it into your home.

Auxiliary Heat

The heat pump process is effective down to outside temperatures of 25 degrees Fahrenheit to 30 degrees Fahrenheit. If the temperature dips below this, supplemental heat is provided by the unit to keep your house at the desired temperature. This heat is provided by an alternate means, such as a gas furnace or electric heat. If the supplemental source is a gas furnace, the heat pump turns off. If it is electric, it works in tandem with the heat pump. The auxiliary heat option is also available if your heat pump malfunctions.

Tips

Some simple tips can increase the efficiency of your Trane heating system. The thermostat should be mounted on an inside wall away from windows and doors. People generate heat, so lower your thermostat if expecting visitors. Keep windows and doors closed tightly and ensure your home is well-insulated. Keep fireplace dampers closed when not in use and consider investing in a humidifier to keep winter air more moist.

References

• Trane: FAQ