Furnace Installation in Greeley, CO
A new furnace here will run from October through May every year. Tell us about the house, and a licensed contractor who covers Weld County will get in touch.
Tell us about the job
It takes about a minute.
Eight months of heat, and nights near 16 degrees
Furnaces in Greeley work from October through May. That is most of the year, and on winter nights that average 16°F, a furnace runs long and often to keep up. A new one has to be built for that kind of season, not just a mild cold snap now and then.
Most homes here heat with gas, and any non-weatherized gas furnace made after November 2015 has to reach at least 80 percent AFUE. That is the floor, not a feature to ask for. Weld County has also seen 42 winter storms and 172 damaging wind events over the past ten years, the kind of weather that can knock out power along with the heat. Statewide, 13 percent of households lost power for a full day or more in 2024, so it is worth knowing how your furnace responds when that happens.
- 8 months
- October through May, your furnace is on duty
- 16°F
- the average winter night it heats against
- 73%
- of homes here heat with gas, so most furnaces here burn gas
- 80% AFUE
- the federal minimum any new unit must meet
NOAA nClimDiv, 1991–2020 normals
A high-efficiency gas furnace would save about $80 a year to run in Weld County compared with a gas furnace.
Estimates for a typical Weld County home, from EIA household energy data, Colorado fuel prices and NOAA climate normals. Your home will differ.
- What size furnace does my house need?
- It depends on your home's square footage, insulation, window count, and layout, so a contractor needs to do a load calculation to get it right. Guessing at size or going by the old furnace's rating alone can leave you with a unit that's too big or too small. A furnace that's too big cycles on and off too often and wears out faster. One that's too small runs constantly and still can't keep up on the coldest nights, which matters here since winter lows average 16°F. Have a contractor measure your home and calculate the load before you buy anything.
- How do I know it's time to replace my furnace?
- Rising repair bills are one sign, especially if you're calling for service more than once a season. Uneven heat between rooms, a furnace that runs long cycles without warming the house, or a yellow flame instead of blue all point to a unit that's failing. Since homes here need heat from October through May, a furnace on its way out during a stretch of 16°F nights is worth replacing before it quits rather than after. A contractor can tell you whether what you're seeing is a repair or a sign the furnace is done.
- Is a high-efficiency furnace worth it?
- It depends on how much you heat and how long you plan to stay in the home. Furnaces sold new today have to hit at least 80 percent AFUE, and high-efficiency models go higher than that, meaning less fuel wasted for the same heat output. With 8 months of the year needing heat here, a more efficient furnace has more months to earn back its higher upfront cost than it would somewhere with a short winter. A contractor can walk through the options and price out what fits your house.