HVAC, Plumbing & Electrical

What Are All The Different Types Of Furnaces?

What Are All The Different Types Of Furnaces?

One of the most popular choices for heating homes in the United States are furnaces because of the high efficiency, longer life-spans, low operating noise and compatibility. Another advantage of using furnaces is that they have high flexibility—you’ll always find one that suits your house capacity and requirements.

Furnaces are also popular as ‘forced air systems’, and different types can operate on different resources for example; natural gas, heating oil, electricity and even propane. The systems use these resources to maintain a suitable indoor temperature during the colder months.

The Different Types Of Furnaces

If you’re looking to get a furnace installed in your house, it’s imperative that you know about all the types and how they operate to help you make an informed decision. Here are all the types you should consider.

Electric Furnace

This is the best option to look into if your house isn’t connected to a natural gas line. These systems rely on electricity to power the heat transfer and are relatively affordable. Electric furnaces are also smaller than other types, making them an ideal choice for smaller houses.

Gas Furnace


A gas furnace uses gas coming in directly from your municipal line and is the most common choice for heating houses. This gas is then used to create hot combustion gas which transfers heat to air—raising its temperature.

This warm air is then circulated around the house through ducts using fans. These types of furnaces are highly effective at maintaining a certain temperature around the house and pose low up-keeping costs owning to competitive gas rates in contrast to other forms of fuel.

Oil Furnace

Another option to consider if you don’t have access to natural gas is an oil furnace. Being one of the most popular furnace options in colder regions like Northeastern US, these systems efficiently convert oil to heat.

However, gas furnaces are a better option as compared to oil furnaces, with AFUE ratings rounding up to 88–98% for gas furnaces and 80–90% for oil furnaces.

Looking for reliable HVAC services in Raleigh, NC? Our team at Comfort Shield HVAC, Plumbing & Electrical has been in business for 29 years and has been serving all sorts of clients from residents to manufacturing companies. We offer air conditioning repairs, heating repairs and furnace repairs in addition to other services. To contact us, call (919) 588-8015.