The Problem:
It’s not cold outside, but it is cool enough to turn on the furnace. While you’re comfortable at first, soon the house gets too warm. The furnace shuts off, and the house cools down. Later, the furnace restarts but you’re already uncomfortably cool again. What’s going on?
Chances are, you have a single-stage furnace. This furnace works fine on the coldest days of the year, but on a cooler day, it still runs at full capacity, resulting in dramatic temperature fluctuations.
The Solution:
A multi-stage variable speed furnace or heat pump provides consistent heating because it is really two furnaces in one. Almost 80% of the time, it will run in a “low fire” mode, heating your home during milder weather. On the coldest days, it will occasionally run in “high fire” mode, using its full heating capacity. This combination achieves remarkable temperature consistency by circulating the air more often, eliminating “air stratification,” or the effect of warm air rising and cool air sinking.
For maximum temperature control, the multi-stage variable speed furnace or heat pump can run in “constant fan” mode. Just like it sounds, the constant fan is always running, constantly circulating the air in your home. A multi-stage variable speed furnace or heat pump equipped with a Genteq blower motor can run on constant fan using just a fraction of the energy used by a conventional furnace motor.