Furnace Installation in Shawnee, OK
A new furnace here will run from November through April every year. Tell us about the house, and a licensed contractor who covers Pottawatomie County will get in touch.
Tell us about the job
It takes about a minute.
What a Shawnee winter asks of a new furnace
Furnace weather runs November through April here, six months of the year. Winter nights average 30°F, cold enough that a furnace is doing real work most nights it runs.
A quarter of Oklahoma households lost power for at least 24 hours in 2024, and Pottawatomie County has logged 6 winter storms and 57 damaging wind events over the past ten years. A new furnace should be installed with that in mind. Any non-weatherized gas furnace built since November 2015 has to hit 80.0 percent AFUE at minimum, so whatever goes in will meet that mark.
- 6 months
- November through April, your furnace is on duty
- 30°F
- the average winter night it heats against
- 80% AFUE
- the federal minimum any new unit must meet
NOAA nClimDiv, 1991–2020 normals
Oklahoma requires HVAC contractors to hold a state license.
The Construction Industries Board tests contractors before issuing this license and keeps a record of who holds one. It is tied to the contractor, not to any single job, so the same license that qualifies someone to install a furnace in one Pottawatomie County home covers the next one too.
For a furnace installation, that license is what stands behind the work itself. Most cities and counties also require a permit before the furnace goes in, along with an inspection once it's done, so the installation gets a second check beyond the contractor's license.
Source: Oklahoma State Legislature
- What size furnace does my house need?
- The right size depends on your home's square footage, insulation, window count, and layout, not just one number you can look up. A furnace that's too big cycles on and off too often and never runs long enough to heat evenly. One that's too small runs constantly and still can't keep up on the coldest nights. A contractor will figure this out with a load calculation, which looks at your actual house rather than a rule of thumb.
- How do I know it's time to replace my furnace?
- Age is the first sign, along with repairs that keep coming back. Watch for uneven heat between rooms, a furnace that runs longer than it used to, or a jump in your gas bill with no other explanation. If yours is already struggling and needs a repair now, replacing it often makes more sense than fixing it again. Winter lows here average 30°F, and homes need heat from November through April, six months a year, so a furnace that can't keep up has a long stretch of work ahead of it.
- Is a high-efficiency furnace worth it?
- It depends on how long you plan to stay in the house and what your current furnace is costing you to run. Furnaces made since November 2015 have to hit at least 80 percent AFUE, so even a standard model built today isn't inefficient. A high-efficiency furnace wastes less gas turning into heat that goes up the flue, which matters more the longer and harder your furnace runs each winter. A contractor can walk you through the actual models and what each one would mean for your house.