Heating Unit Replacement: Factors To Consider When Buying A New Furnace

heating unit replacement

When you are looking to undertake heating unit replacement, you should always replace your unit with the most energy efficient unit that you can afford. To help you out, here are some of the features that you should look out for when making the purchase:

Heat exchanger

This is a unit that exchanges heat from the combustion (burning gas) to the surrounding air that blows over it from the inside of the house. The primary function of the heat exchanger is to keep the exhaust fumes separate from the inside air of your house during the combustion process.

When buying the furnace, you should go for one with at least two heat exchangers.

Automatic gas valve

These gas valves are devices within the furnace that automatically open and close allowing raw natural or propane gas into the heat exchanger. When the thermostat sends a signal to the furnace that the house is cold and needs to be heated, the gas valve opens and allows the gas to flow.

Pressure switches

Pressure switches are safety devices that monitor the internal pressure of the combustion area. When there is an issue with the vent pipe, heat exchanger, or vent fan, the switch automatically shuts off the power flowing to the automatic gas valve.

When making the purchase, you should pay attention to this feature as it’s an important safety feature for you and your family.


This is where the brain of the furnace resides. The IFC monitors and controls all functions that are integral to the heat cycle. When there is a problem with any part of the furnace, the IFC picks up the issue, interprets it and administers the relevant response.

Just like the other parts of the furnace, you should ensure that it’s made from high-quality materials.

Roll out switches

These are safety switches that shut off the combustion process in the event there is a fire in an area where it’s not supposed to be. According to furnace repair contractors, the switch tends to shut off the process when the vent pipe is clogged, or the vent fan stops working.


These are some of the features that you should look out for when purchasing a replacement furnace. After buying it, ensure that it’s installed by a reputable contractor. To avoid issues t and save money running the furnace, you should take good care of it. This calls for you to hire heating systems tune-up professionals to help you out.

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