Heat Pump vs. Gas Furnace: 8 Major Myths

Heat pumps and gas furnaces are two popular options for heating a home. But they work in very different ways, and each have their own pros and cons. Check out these eight myths about heat pumps vs. gas furnaces to gather the facts so you can decide which heating system is the best option for you. 


Myths of a Heat Pump vs. Gas Furnace


There are a lot of opinions out there on whether you should install a heat pump vs. gas furnace. What you need are facts. Here are the top eight myths, and the truth behind them, of installing a heat pump vs. gas furnace so you can make an educated decision. 


white gas furnace on white background
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Myth #1 – A gas furnace is always the best way to heat a home

A gas furnace is not always the best way to heat a home. If you do not have gas lines leading to your home, then a gas furnace cannot be installed. They can also produce extremely hot heat, which means that the temperature in your home can quickly reach the setting on your thermostat. This can leave cold spots around your home and cause dry skin.

Gas furnaces may provide overpowering heat when the temperatures outside are between 40 and 60 degrees. A gas furnace also produces CO, which can be a threat if not installed properly, monitored and inspected. 

Heat pumps can actually be a better choice in certain regions, such as the South, where winters are milder. In areas that do not experience temperatures below freezing, a heat pump consumes less energy and can be more efficient than a furnace. 


Myth #2 – A heat pump is the same as an air conditioner 

While a heat pump works similarly to an air conditioner, a heat pump is not the same as an air conditioner. An air conditioner takes the hot air inside your home and pumps it outside your home. A heat pump  takes the warm air outside of your home and pumps it inside of your home.

When the heat pump pulls the hot air from outside your home, it moves the air into an air handler that is on the inside unit of your home. The air handler has a coil and heat strips inside of it. As the air handler moves the air over the coil, it heats the air, and then a fan inside the air handler blows the warm air through the vents of your home. 


Myth #3 – Heat pumps don’t heat your home as well as gas furnaces

A heat pump is an effective way to heat homes in many areas, but especially those located in the southeastern United States. In more moderate climates, like those in the South, the cost savings for natural gas might not be as much as in colder climates, such as in the northeastern U.S., which experiences much colder temperatures.


Myth #4 – Gas furnaces are always more efficient than heat pumps

Gas is cheaper than electricity in most cases, which makes furnaces more cost-effective than electric heat pumps in areas that experience colder temperatures. Gas furnaces are not always more efficient than heat pumps, however.

For states that experience cooler temperatures (40-60 degrees) but not colder temperatures (below 40 degrees), a heat pump can be more efficient and cost-effective.


Myth #5 – A gas furnace is cheaper than a heat pump

It can be cheaper to heat a home with natural gas in a colder region but not in a warmer region. The upfront cost for installing a heat pump is usually cheaper than the cost to install a furnace. Also, if you don’t have natural gas lines running to your home, you have to have the gas lines installed in order to use a gas furnace, and this can be extremely expensive.


Myth #6 – There is only one type of heat pump

There are three types of heat pumps: air-to-air, ductless mini-split and geothermal. The air-to-air heat pump is the most common type of heat pump and works by moving the warm outside air to the inside of your home. A ductless, mini-split heat pump is similar to a window air conditioner. It is a smaller air-source unit with an outdoor compressor/condenser and an indoor air-handling unit. Lastly, a geothermal heat pump uses the warmth stored in the earth (which is roughly 50 to 60 degrees) to heat your home. It uses this warmth to heat the air before it blows it into your home. The best heat pump for you will depend on your type of home and your heating needs. 


Myth #7 – Carbon monoxide is a risk with both gas furnaces and heat pumps

Gas furnaces do produce CO, which can be harmful. As long as gas furnaces are installed correctly, regularly monitored and inspected, gas furnaces are safe. Heat pumps, however,  do not require regular monitoring and inspections. Since they do not use combustion to create heat, like gas furnaces do, they do not create any CO.


Myth #8 – Gas furnaces produce more heat

Technically, gas furnaces produce more heat than heat pumps. Extremely hot air is not always a good thing, though. The extremely hot air that gas furnaces produce can cause your skin to dry out in the winter and can actually produce higher temperatures than you need, wasting energy.


Frequently Asked Questions


Does a heat pump cost more than a gas furnace?

Not necessarily. If you live in a region where electricity is cheaper than gas, then a heat pump can be a more cost-effective and efficient way to heat your home.

How do I know if I have a heat pump vs. gas furnace?

The easiest way to determine if you have a heat pump is to set the thermostat to heat. Go to the unit outside of your home. If the unit is running while the heat is running inside, then you have a heat pump. 

Why choose a heat pump over a gas furnace?

Most of the reasons you would choose a heat pump vs. gas furnace come down to where you live. If you live in the South, where winter temperatures may only reach 40 to 60 degrees, then a heat pump is the best fit for your home. If you live in an area where electricity costs less than gas, then a heat pump is also the better option.