How Do High Efficiency Furnaces Work | Maytag HVAC Blog

How Do High Efficiency Furnaces Work

Want to know how a high-efficiency furnace works? It’s all about condensing operation.

Contact your local HVAC contractor to get a high-efficiency furnace installed in your home

We’ve already established that the cost difference between a high-efficiency system and a standard-efficiency system can be made up over time through efficient operation (particularly if you live in an area that needs a lot of heating power). But, just how does a high-efficiency furnace work to save you money on heating costs?

We’ve already discussed basic furnace operation. Now, here’s the difference between standard-efficiency and high-efficiency models.

In gas furnaces, there is a component called a heat exchanger. This is where natural or propane gas is converted into heat energy and byproducts produced from the combustion process are vented through the flue system. Well, in a condensing gas furnace, there is more than one heat exchanger. The secondary heat exchanger removes more heat from the combustion gases, which then condense to produce water vapor. Then, cooled flue gas is vented out of the flue system. This is why units produced today can reach staggering efficiency levels – nearly 100% AFUE.

Did you already know this? If you’re interested in having a high-efficiency furnace installed in your home, talk to your local heating and air conditioning specialist.


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