Dual-Fuel HVAC Systems: Are They Worth It?

You may have heard of dual-fuel systems before, especially when looking for a new system for your home. While you may not be sure exactly how it works, you should know that it’s very energy efficient and can solve a lot of problems for homeowners. Heater installation expert MLD HVAC Services explains what you need to know below:

Dual-Fuel HVAC Systems: Are They Worth It?

How Dual-Fuel Systems Work

To put it simply, a dual-fuel system is a combined HVAC system consisting of a heat pump and a gas furnace. Specifically, it’s a hybrid of a standard electrically-powered heat pump with a backup furnace that runs on a different energy source–usually propane.

The heat pump part of the dual-fuel system works the same as a standard heat pump. It works differently from a furnace in that it removes heat from the outside air and transfers it into your home. In cooling mode, it does the reverse by removing heat from inside your home and sending it outdoors.

When the heat pump is in heating mode, however, it can have difficulty removing enough heat from the outside air, especially when the temperature is extremely cold. The outdoor coil must be colder than the air around it for it to effectively draw thermal energy from the outdoors so that it can be moved indoors. In subfreezing temperatures, the heat pump can lose energy efficiency as the backup furnace takes over to generate the necessary amount of heat. The backup furnace turns on automatically and stays on as long as needed before shutting off.

Benefits to Consider

Professional technicians in HVAC services will typically recommend a dual-fuel system if you want to increase your home’s energy efficiency. When used during the summer, the heat pump cools by removing the hot air from your home, and in the winter it generates heat in a reverse cycle. In the winter, the furnace runs when temperatures fall below what the heat pump can handle. Less energy is used in this type of system, which means you pay less for your monthly energy bill.

Whether a dual-fuel system is best for your home depends on a few different factors. If you don’t have the option for a natural gas furnace, then a heat pump is a great choice for your home. If it’s unable to keep your home warm and comfortable during the winter and you’re not keen on switching fully to an electric furnace, then a dual-fuel HVAC system is your best option for installation.

As the best dual-fuel system installer and indoor air quality expert in the area, you can be confident with what we offer at MLD HVAC Services. Call us today at (512) 528-4258 or through our convenient online contact form.

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