Furnace Installation in Lexington, NE
A new furnace here will run from October through May every year. Tell us about the house, and a licensed contractor who covers Dawson County will get in touch.
Tell us about the job
It takes about a minute.
Eight months of heat a year, and nights that drop to 16 degrees
Lexington homes run the furnace from October through May. That is 8 months out of the year, and the nights it has to work hardest average 16°F. A furnace sized for a mild winter somewhere else will run long hours here just to hold the house at temperature.
Dawson County has seen 17 winter storms and 121 damaging wind events over the past ten years, and across Nebraska a quarter of households lost power for at least a day in 2024. Close to half the homes here heat with electricity, so a furnace that can hold up through a storm and come back on by itself when the power returns matters. Any new gas furnace installed today has to reach at least 80 percent AFUE, the federal minimum for non-weatherized units.
- 8 months
- October through May, your furnace is on duty
- 16°F
- the average winter night it heats against
- 80% AFUE
- the federal minimum any new unit must meet
NOAA nClimDiv, 1991–2020 normals
Nebraska requires contractors to register with the state.
That registration puts the contractor's business on file with the Department of Labor. There's no trade exam behind it and no license number tied to a proven skill level. It just means the business is on record to legally operate in Nebraska.
For a furnace installation in Dawson County, the real check on the work happens at the local building office. In most cities and counties, setting a new furnace needs a permit, and the finished job gets inspected before it's signed off. That inspection is what catches a bad gas connection or a venting mistake, not the state registration.
Source: Nebraska Legislature
- What size furnace does my house need?
- The right size depends on your square footage, your insulation, your windows, and your ceiling height, so there is no number that works for every house. A contractor sizes it with a load calculation, not a chart based on square footage alone. This matters more here than in milder places, since winter lows around 16°F mean an undersized furnace will struggle to keep up on the coldest nights, and an oversized one will cycle on and off without ever running long enough to heat evenly. Get the calculation done rather than matching whatever size is already in there, especially if the house has had windows or insulation added since the last furnace went in.
- How do I know it's time to replace my furnace?
- Watch how the furnace behaves before you look at its age. Rooms that heat unevenly, a furnace that runs longer than it used to, or a repair bill on a unit that has already been fixed more than once are all signs worth paying attention to. With heat needed here from October through May, a furnace that is already struggling early in the season is only going to have more work ahead of it. If yours is old and starting to act up, get a contractor to look at it before the coldest weather arrives rather than during it.
- Is a high-efficiency furnace worth it?
- It depends on how much you run your furnace and how long you plan to stay in the house. Homes here need heat for 8 months of the year, which is a long season, and that changes the math compared to a place that only heats for a few months. Every non-weatherized gas furnace sold new today has to hit at least 80 percent AFUE by federal rule, so the real choice is between that baseline and a high-efficiency model rated higher than that. A contractor can walk through the specific models and what they would mean for a furnace running this many months a year in your house.