How to Heat a Home Addition

What is the Best Solution for Heating a Home Addition

By Mark J. Donovan

When building an addition questions inevitably come up on how to heat the home addition. Should you use the home’s existing heating system? Is the existing heating system large enough to support the additional living space? Should a separate heating system be installed in the home addition? What type of supplementary heating system should be installed in the home addition? All of these are very valid questions and the best person to answer your questions on how to heat a home addition is an HVAC contractor/technician.

An HVAC (Heating, Ventilation, and Air Conditioning) contractor can either be found working independently or for a home heating fuel supply company.

I have used both on previous home addition projects and each is capable of providing you with excellent answers on how to heat a home addition.

An HVAC contractor can evaluate the size of your new addition, and your existing heating system, to determine if it is large enough to support the new living space. Much of his analysis involves comparing the amount of BTUs (British Thermal Units) the furnace system can produce with the amount of BTU’s required to heat your home with its additional new living space. If your existing furnace system can support the additional living space, he can also determine how to feed the new pipe, wire and/or ductwork from the furnace to the new home addition.

He can also determine how to configure it so that it is on its own separate heating zone.

In the situation where the existing home heating furnace is inadequate, he can discuss alternative options including putting in a larger furnace or heating the home addition with a separate standalone heat system.

There are a number of choices for standalone heat systems that are ideal for home additions including wall and floor mounted units.

Alternatively you can also consider installing vented or ventless heaters in the new home addition. There are some ornamentally attractive gas stoves that can pump out an incredible amount of heat that are ideal for room additions.

So if you are building a home addition talk to a local HVAC contractor to answer your questions on how to heat your home addition.

Direct vent gas stove fireplace

You will be surprised by the number of home heating options that are available to you.

For information on how to maximize a wood stove’s heating efficiency, see’s Installation of Hood over Wood Stove eBook

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