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Throughout Chicagoland’s frigid, snowy winters, your comfort at home depends largely on your furnace’s performance. While all furnaces heat the air, not all do so in a way that maximizes your comfort. If you’re tired of temperature swings, cold spots, and annoying fan noise, two-stage heating may be the best heating choice for your home.

Single-Stage vs. Two-Stage Furnaces

Flexibility is the main difference between one-stage and two-stage furnaces. A furnace with single-stage heating contains a fixed gas valve and a single-speed blower motor. These furnaces are either on and running at full capacity or off.

A model with two-stage heating contains a two-stage gas valve and a variable-speed blower motor. This allows the furnace to run at a lower setting in milder weather and a higher setting in very cold weather.

For all your furnace needs, both single- and two-stage, contact the experts at Black Diamond today!

Benefits of Two-Stage Heating

Typically, a two-stage furnace runs on the lower setting around 75% to 80% of the time. This setting offers a number of advantages:

  • A steady flow of warm air keeps temperatures consistent and even throughout your home
  • Lower fan speed means less noise
  • Longer run times keep air circulating longer, improving your indoor air quality
  • Fewer stops and starts reduce wear on components, increasing their life span
  • You’ll save energy by not running the furnace on high unnecessarily

So how does a two-stage furnace work? From a user’s point of view, it works like any other furnace. All you need to do is set your thermostat, and your furnace automatically chooses the ideal stage. When the thermostat calls for heating, the furnace kicks on in the low setting first. On this setting, the furnace runs at around 60% to 68% of its capacity.

If the thermostat temperature isn’t reached within a few minutes, the furnace will kick into the high setting. On this setting, the furnace produces more warm air to heat your home faster. Your home will always be a comfortable temperature no matter what the weather is like.

If you’d like expert guidance choosing between single-stage and two-stage furnace models, contact the pros at Black Diamond Plumbing & Mechanical.

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