There are four main types of HVAC systems for homes. Each has its advantages and disadvantages. These are the main HVAC systems you have to choose from.

Central Furnace and Air Conditioner

The most common HVAC system is a central furnace and air conditioner. The furnace is located inside your home while the main part of the air conditioner is located on a cement slab outside of the house. Conditioned air is delivered throughout your home through ductwork. The ducts are located in your attic, basement or crawlspace.

Heat Pump

A heat pump is often a more energy-efficient HVAC system than a furnace and air conditioner. A heat pump is located outside and can both heat and cool your home. Heat pumps don’t work well when temperatures are below freezing for a period of time. If you live in an area where it’s cold, they’re usually paired with a backup furnace. Since the furnace only operates when it’s very cold outside, it should have a long lifespan since it’s not used that often.

Geothermal System

A geothermal system is the most energy-efficient system you can own. However, it’s also the most expensive to install. It consists of an above-ground unit and a series of pipes with refrigerant in them buried underground.

Geothermal systems take advantage of the fact the ground a few feet down is a relatively constant temperature throughout the year. They use very little electricity to operate, with most of it being used by the fan.


A boiler is an HVAC system that heats your home. Unlike the above systems, they don’t use ducts to deliver heated air throughout your home. Instead, they distribute heat through radiators placed inside your home. This can be beneficial for some homeowners.

Carson Brothers Montana of Kalispell, MT, is a company that repairs, maintains and installs all of these heating and cooling systems. Our other services include ductless HVAC and indoor air quality solutions. To schedule a service, or if you have any questions, please contact us today!

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