Furnace Installation in Mount Washington, KY
A new furnace here will run from October through April every year. Tell us about the house, and a licensed contractor who covers Bullitt County will get in touch.
Tell us about the job
It takes about a minute.
Seven months of heat, and winter nights near 28°F
Mount Washington homes need the furnace running from October through April, seven months of the year. On winter nights that average 28°F, it cycles on and off for most of the day, all season long. It has to be sized and installed to keep up on the coldest nights, not just the mild ones.
Any new non-weatherized gas furnace installed today has to reach at least 80.0 percent AFUE, the federal minimum. Close to half of homes here heat with electricity, and in 2024, 24 percent of Kentucky households lost power for at least 24 hours. Bullitt County has logged 14 winter storms and 58 damaging wind events over the past ten years. A furnace installed here has to hold up through a long heating season in a place where the power does not always stay on.
- 7 months
- October through April, your furnace is on duty
- 28°F
- the average winter night it heats against
- 80% AFUE
- the federal minimum any new unit must meet
NOAA nClimDiv, 1991–2020 normals
Kentucky requires HVAC contractors to hold a state license.
The state license comes from the Department of Housing, Buildings and Construction, and it belongs to the contractor, not to any single job. That means the state tested and keeps a record of the business you hire, but it does not send anyone to check this particular furnace once it is in.
That inspection comes from the local building office instead. Most cities and counties in Kentucky require a permit before a furnace goes in and an inspection once it does, and that step is what checks the gas connection and venting are done right. The license tells you the contractor was tested. The permit and inspection are what confirms this installation.
Sources: Kentucky Legislative Research Commission · Kentucky Department of Housing, Buildings and Construction
- What size furnace does my house need?
- A contractor works this out with a load calculation, not by matching the old furnace or going by square footage alone. That calculation looks at your insulation, your windows, your ceiling height, and how the house holds heat once it's 28°F outside. A furnace that's too big cycles on and off and wears out faster. One that's too small runs constantly and still can't keep up on the coldest nights. There's no shortcut that gets this right for your specific house.
- How do I know it's time to replace my furnace?
- Watch for uneven heat between rooms, a furnace that runs longer than it used to, or repairs that keep coming back. Age matters too. An older furnace works harder each winter to do the same job it used to do with less effort. With heat needed here from October through April, a furnace that's struggling in the shoulder months usually won't hold up once nights drop to 28°F. If yours is old and starting to act up, get it looked at before you're depending on it during a cold snap.
- Is a high-efficiency furnace worth it?
- Every gas furnace sold new today has to meet at least 80 percent AFUE, so the question is really whether to go higher than that baseline. A high-efficiency furnace pulls more heat out of the same fuel and vents differently, through PVC pipe instead of a metal flue. With heat needed here from October through April, that furnace runs for a large part of the year, so the efficiency difference shows up over more months of use. A contractor can walk through the options and what fits your house and your existing ductwork.