Furnace Installation in Delta, CO
A new furnace here will run from September through May every year. Tell us about the house, and a licensed contractor who covers Delta County will get in touch.
Tell us about the job
It takes about a minute.
Delta County asks a lot of a furnace
Nine months a year, September through May, your furnace is what keeps the house livable. Winter nights average 17°F, so it runs long hours to hold a temperature, night after night, for most of the year.
A new furnace installed here has to be built for that stretch of cold, not just able to handle it once in a while. If it burns gas, federal rules require it to reach at least 80 percent AFUE, so the unit going in has a real efficiency floor to meet. Power outages happen here too, so it is worth asking your contractor how the system you choose responds when the power drops and comes back.
- 9 months
- September through May, your furnace is on duty
- 17°F
- the average winter night it heats against
- 51%
- 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 $90 a year to run in Delta County compared with a gas furnace.
Estimates for a typical Delta 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?
- There's no single number that fits every house on your street. A contractor works this out with a load calculation, which weighs your square footage against your insulation, your windows, your ceiling height, and how much of the year you're running heat. Here that's nine months, September through May, with winter nights averaging 17°F, so undersizing costs you comfort on the coldest nights and oversizing costs you efficiency the rest of the season. Guessing based on your old furnace's size just repeats whatever mistake was made when that one got installed.
- How do I know it's time to replace my furnace?
- Watch for rooms that won't hold heat, a furnace that cycles on and off more than it used to, and bills that climb even though you haven't changed how you use it. An older furnace working through more breakdowns each winter is telling you something. If yours is short-cycling or won't keep up on a 17°F night, that's not a season to ride out, since you're relying on this furnace nine months of the year here.
- Is a high-efficiency furnace worth it?
- Every gas furnace built new since November 2015 has to hit at least 80 percent AFUE by law, so the real question is whether it makes sense to go higher than that. With heat needed from September through May here, more of the year runs off that furnace than in places with a shorter winter, so any extra efficiency gets used more often instead of sitting idle. A contractor can lay out what a higher-efficiency model would mean for your house against a standard one, since installed cost and venting requirements vary by home.


