Climate Works Blog
What Is A Modulating Furnace?
A modulating furnace takes the idea of a two-stage furnace and it tweaks it. For the better of course.
The best way to describe how a modulating furnace works is there compared to the gas pedal on your car. So when you’re driving and you have to go up a hill you put that gas pedal down a little bit and when you going down the hill you can ease up on the pedal because you can coast more.
A modulating furnace works much the same way. So when is really really cold outside that modulating furnace is going to push that gas pedal down a little bit to help heat the house. So a modulating furnace doesn’t have a single stage or two stage it has about 70 different stages. So it can really pinpoint how much the furnace needs to work in about 1% increments.
Therefore it can give you the most even heat that you can possibly get in a house. So modulating furnaces are great when it comes to giving us our ultimate comfort level.
Essentially a modulating furnace only works as much as it has to, and it only consumes as much energy as it has to.
Given what temperature we have outside to what temperature we want to have inside how much insulation we having the house, our furnace is going to work accordingly. So they’re very quiet furnace and there are a great choice for most houses. But not all houses. Not every house should have a modulating furnace installed. Modulating furnaces are really good in houses that are maybe 30 to 40 years old and newer. Beyond that, they are not necessarily the most logical choice.
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