Furnace Installation in Oklahoma City, OK
A new furnace here will run from October through April every year. Tell us about the house, and a licensed contractor who covers Oklahoma County will get in touch.
Tell us about the job
It takes about a minute.
Seven months of heat, out of a furnace that has to hold up
Furnace in Oklahoma City runs October through April, seven months a year. Winter nights average 30°F, so the burner is cycling on and off most nights in that stretch, not just during a cold snap.
Most homes here heat with gas, and any new gas furnace installed now has to reach at least 80 percent AFUE, the federal minimum. Wind and winter storms are both common here, and storms are the times a furnace gets asked to run the longest without a break. A furnace put in now needs to be sized and installed to handle that, not just make it through a mild stretch.
- 7 months
- October through April, your furnace is on duty
- 30°F
- the average winter night it heats against
- 59%
- 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 Oklahoma County compared with a gas furnace.
Estimates for a typical Oklahoma County home, from EIA household energy data, Oklahoma fuel prices and NOAA climate normals. Your home will differ.
Oklahoma requires HVAC contractors to hold a state license.
The Construction Industries Board tests and licenses the contractor, not the job itself. So the license tells you the person or company doing the work has met the state's standard, but it does not mean a state inspector reviewed this particular furnace installation.
That inspection comes from your local building office instead. A furnace swap typically needs a permit and an inspection once the work is done, and that's where someone checks the gas connection and venting on this specific job, separate from the license itself. Gas is the part that matters most to get right, since a bad connection is what makes the job dangerous. In Oklahoma County, most homes, about 58.5 percent, heat with gas, which is exactly the kind of installation that permit and inspection are meant to catch.
Source: Oklahoma State Legislature
- What size furnace does my house need?
- The right size comes from a load calculation, not a rule of thumb based on square footage. A contractor figures this by looking at your insulation, your windows, your ceiling height, and how the house is laid out. Too big and the furnace short cycles, heating the air fast then shutting off before the house evens out. Too small and it runs constantly through the cold nights here without keeping up. Ask whoever quotes the job to walk you through the calculation, not just give you a number.
- How do I know it's time to replace my furnace?
- Age is the first sign. Most furnaces last fifteen years or more, and one getting up there is worth having checked before winter rather than during it. Rising repair costs are the second sign, especially if the same part keeps failing or a major part like the heat exchanger is going. Uneven heat, more dust than usual, or a furnace that runs longer to do the same job it used to are all worth a look too. With heat needed here from October through April, a furnace that's struggling in the fall usually isn't going to hold up through a full winter.
- Is a high-efficiency furnace worth it?
- It depends on how long you plan to stay in the house and what your furnace is replacing. Every furnace made after November 2015 has to hit at least 80 percent AFUE, so even a standard model today wastes less gas than an older one did. A high-efficiency furnace goes beyond that minimum, using less gas to make the same heat, which matters more in a house that needs heat seven months of the year like homes here do. With most homes in the area heating with gas, the difference shows up on the bill every one of those months. A contractor can run the numbers for your specific furnace and house.