Snow-covered gabled roof of a dark house during a heavy snowstorm.

Furnace Installation in Douglas, WY

A new furnace here will run from September through June every year. Tell us about the house, and a licensed contractor who covers Converse County will get in touch.

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
A gray forced-air furnace with metal ductwork stands in an unfinished basement with exposed wooden joists, concrete walls, and a single hanging light bulb.

Ten months of heat a year, down to 14 below zero

Douglas needs a working furnace from September through June. That leaves only two months where it can sit idle, and winter nights average 14°F, cold enough that a furnace runs long hours most nights to keep the house warm.

The region has logged 105 winter storms and 141 damaging wind events over the past ten years, and outages happen here too, with 8% of Wyoming households losing power for at least 24 hours in 2024. A gas furnace with a standing pilot stays lit through an outage and needs no power to keep the pilot burning. Any non-weatherized gas furnace built new also has to meet 80.0 percent AFUE by federal rule, so that efficiency floor is already part of what goes into your home.

10 months
September through June, your furnace is on duty
14°F
the average winter night it heats against
56%
of homes here heat with gas, so most furnaces here burn gas
80% AFUE
the federal minimum any new unit must meet
Isometric cutaway illustration of a small house showing a furnace unit connected to ductwork and a vertical flue pipe extending through the dark shingled roof, with sparse furniture in the rooms.
Your furnace works hardest from October through April.

NOAA nClimDiv, 1991–2020 normals

An unfinished basement featuring concrete block walls, exposed floor joists, a bare concrete floor, and a forced-air furnace with a large metal exhaust duct in the corner.

A high-efficiency gas furnace would save about $120 a year to run in Converse County compared with a gas furnace.

  • A high-efficiency gas furnace$550 a year
  • A gas furnace$670 a year

Estimates for a typical Converse 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 comes from a load calculation, not the square footage of your house alone. A contractor measures your walls, windows, insulation, and ceiling height, then factors in a winter low around 14°F to figure out how much heat your house loses on the coldest nights. A furnace that's too big will short cycle and wear out faster. One that's too small will run constantly and still leave rooms cold on the coldest nights.
How do I know it's time to replace my furnace?
Watch for rising repair calls, uneven heat between rooms, and a furnace that runs longer to keep up. With heat needed here from September through June, a furnace that struggles is working most of the year, so problems show up fast. If yours is old enough that parts are getting hard to find, or a technician tells you the heat exchanger is cracked, replacement is usually the safer call over another repair. A contractor can look at the specific unit and tell you where it stands.
Is a high-efficiency furnace worth it?
It depends on how much your furnace runs, and here it runs for 10 months a year. Any new non-weatherized gas furnace has to hit at least 80 percent AFUE by law, so the real question is whether it's worth going higher than that minimum. A high-efficiency model burns less gas to make the same heat, which matters more in a place where the furnace rarely gets a break. A contractor can walk you through the options for your house and what each one means for your setup.