Furnace Installation in Aurora, CO
A new furnace here will run from October through May every year. Tell us about the house, and a licensed contractor who covers Arapahoe County will get in touch.
Tell us about the job
It takes about a minute.
Eight months of heat, and nights that drop to 16°F
Aurora needs a furnace from October through May. That is eight months of the year, and on winter nights the temperature averages 16°F. A new furnace has to be sized and installed to hold a house steady through that whole stretch, not just take the edge off a cold snap.
65.4 percent of homes here heat with gas, and any new non-weatherized gas furnace built after November 2015 has to reach at least 80 percent AFUE by federal rule. Power matters too. Colorado saw 13 percent of households lose power for a day or more in 2024, and the region has logged 78 winter storms and 97 damaging wind events over the past ten years. A furnace installed here should be one that starts back up on its own once the power comes back.
- 8 months
- October through May, your furnace is on duty
- 16°F
- the average winter night it heats against
- 65%
- 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 Arapahoe County compared with a gas furnace.
Estimates for a typical Arapahoe 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?
- The right size comes from a load calculation, not the square footage of your house alone. A contractor measures your walls, windows, insulation, and ceiling height, then figures out how much heat escapes on a cold night so the furnace matches that loss. Too big and it short cycles, heating the house in bursts and wearing out faster. Too small and it runs constantly through the coldest nights and still can't keep up. A contractor sizing this for your house will price the job once the calculation is done.
- How do I know it's time to replace my furnace?
- Age and repair history tell you more than any single symptom. An older furnace that needs a repair each winter is usually cheaper to replace than to keep patching. Watch for uneven heat between rooms, a burner flame that's yellow instead of blue, or a rise in gas bills with no other explanation. Since homes here need heat from October through May, eight months of the year, a furnace on its way out will show it fast once the cold settles in.
- Is a high-efficiency furnace worth it?
- It depends on how many months your furnace runs and what you're replacing. With heat needed eight months a year here, a furnace spends more time working than it would somewhere milder, so the efficiency gap between models adds up over more hours. Any non-weatherized gas furnace built since November 2015 has to hit at least 80 percent AFUE, so the real comparison is between that baseline and the higher-efficiency models rated above it. A contractor can walk you through which models make sense for your furnace's size and your house.