Furnace Installation in Evanston, WY
A new furnace here will run from September through June every year. Tell us about the house, and a licensed contractor who covers Uinta County will get in touch.
Tell us about the job
It takes about a minute.
Ten months of heat a year, and nights near 10 degrees
In Evanston, homes need heat from September through June. Winter nights average 10°F, so a furnace here is running long stretches to keep up, not just cycling on for an hour at a time.
Most homes in the area heat with gas. A furnace installed here has to be sized for that cold and built to run that often without shortcuts. Any non-weatherized gas furnace made after November 2015 has to reach at least 80 percent AFUE by federal rule, so that's the floor, not a selling point.
- 10 months
- September through June, your furnace is on duty
- 10°F
- the average winter night it heats against
- 63%
- 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 $130 a year to run in Uinta County compared with a gas furnace.
Estimates for a typical Uinta County home, from EIA household energy data, Wyoming fuel prices and NOAA climate normals. Your home will differ.
- What size furnace does my house need?
- The right size depends on your home's square footage, insulation, window count, and layout, so there's no single number that works for every house. A contractor sizes a furnace with a load calculation that accounts for how much heat your home loses on a cold night, not just the square footage. With winter lows here averaging 10°F, a furnace that's undersized will run constantly and still struggle to keep up. One that's oversized cycles on and off too often, which wears out parts faster and leaves rooms uneven. Ask the contractor to walk through the load calculation with you rather than quote a size off square footage alone.
- How do I know it's time to replace my furnace?
- If your furnace is old enough that parts are hard to find, or it's needed more than one repair in the last year or two, replacement is worth considering. Watch for signs like rooms that won't heat evenly, a furnace that runs longer than it used to, or a yellow flame instead of blue. Homes here need heat from September through June, so a furnace that struggles gets used hard for most of the year. If a repair estimate starts to approach what a new furnace would run, that's usually the point where replacement makes more sense than another fix.
- Is a high-efficiency furnace worth it?
- It depends on how much you heat your home and how long you plan to stay in it. Any furnace made after November 2015 has to hit at least 80 percent AFUE, so even a standard furnace today isn't inefficient. High-efficiency models go higher than that, meaning less fuel burned for the same heat output. With heat needed here for 10 months of the year, the difference in fuel use adds up more than it would somewhere with a short winter. A contractor can look at your home and your current furnace's age and efficiency to tell you whether the upgrade makes sense for your situation.


