FAQs
Here are answers to some of the most frequently asked questions our customers have about residential furnaces in Rosemount.
What’s the difference between a standard and high-efficiency furnace?
The term “high-efficiency” (HE) furnace generally refers to a fuel-burning furnace that has additional components to enhance fuel efficiency. Standard gas furnaces are around 80% efficient, while HE models are 90% efficient or greater. This is often achieved through a second heat exchanger, which limits energy losses through the flue. Some models also feature modulating burners, providing finer control over the fuel supply.
What would be causing my furnace to short cycle?
During winter, a furnace will typically cycle on two or three times an hour. A furnace that’s cycling on more often is short cycling, which is inefficient and creates unnecessary wear and tear. The most common reason a furnace short-cycles is a clogged filter, which restricts airflow. Other potential causes include malfunctions related to the thermostat, wiring, flame sensor, or blower.
What does it mean if my furnace pilot light is a color other than blue?
Furnace pilot lights should burn mostly blue and may have a smidge of yellow at the tip. If you notice another color, you should turn the furnace off and call us for service. A flame that’s yellow or orange generally indicates an incorrect gas-to-air mixture. Other colors may indicate contamination, such as dust, dirt, rust, or oil.
