How Does a High Efficiency Furnace Work?

There’s a lot of misinformation out there about how a high efficiency furnace works. Before you purchase one or change the filter, find out how your furnace really works.

Bigger Isn’t Better

It’s critical to choose just the right furnace size.  An undersized furnace, of course, can’t pump out enough heat to keep your home at your desired temperature in the winter.

However, few people realize a furnace that is too large is a problem as well. Over-sized furnaces will be inefficient, using more energy than needed. A furnace that’s too large will also switch on and off more frequently than a properly sized furnace. As a result, there is more wear and tear on the parts of the furnace involved in ignition, resulting in a shorter service life.

Talk to your HVAC professionals to ensure you’re choosing a furnace that is the right size for your home and climate. In the end, a properly sized furnace will be the most cost-effective choice.

The Banging Noise Isn’t Normal

Your furnace may have made a banging noise every time it’s turned on ever since it was installed, but that noise isn’t safe. It’s either from ducts nearby that are too small for your furnace size, or it’s an ignition roll-out, where the gas builds up before the furnace turns on. This problem is dangerous and needs to be dealt with as soon as possible.

There are other noises your furnace may make that you shouldn’t ignore:

  • Rumbling noise
  • Rattling noise
  • Booming noise
  • Grinding noise
  • High-pitched whistle noise.

Don’t Close the Vents!

Some people have heard that closing the vents to their unused rooms will block the hot air from entering the room and therefore push more hot air into the other rooms of the house. However, most furnaces can detect the pressure imbalance that closed vents cause.

As a result, it will work harder to push more air through the closed vents. This causes wear and tear on the furnace and the duct system. In the end, closing the vents will use up more energy, raising your utility bills.

Turning Up the Thermostat Won’t Heat Your Home Faster

Your furnace always heats your home to your desired temperature as quickly as it can, even high efficiency furnaces. Turning up your desired temperature won’t result in faster warmth. If you need your home to be warmer faster, you can get a smart thermostat to heat your home up for you. The Ecobee thermostat, for example, will heat up your home while you’re on your way home (even if you’re coming home early).

If you have more questions about how your furnace works, or why it doesn’t, you can reach out to us at Haven Home ClimateCare.

Get in touch with a member of our team today