3 Ton RunTru 80% Gas Furnace
Pick a size
My typical furnace for this system size. The load calculation sets the final size.
Gas furnace A801X040BM2S
RunTru 80% single-stage, 40,000 BTU
Warranty: 10-year parts and 20-year heat exchanger when registered within 60 days. Parts only, not labor.
My typical furnace for this system size. The load calculation sets the final size.
Gas furnace A801X060BM4S
RunTru 80% single-stage, 60,000 BTU
Warranty: 10-year parts and 20-year heat exchanger when registered within 60 days. Parts only, not labor.
My typical furnace for this system size. The load calculation sets the final size.
Gas furnace A801X060BM4S
RunTru 80% single-stage, 60,000 BTU
Warranty: 10-year parts and 20-year heat exchanger when registered within 60 days. Parts only, not labor.
My typical furnace for this system size. The load calculation sets the final size.
Gas furnace A801X080BM4S
RunTru 80% single-stage, 80,000 BTU
Warranty: 10-year parts and 20-year heat exchanger when registered within 60 days. Parts only, not labor.
My typical furnace for this system size. The load calculation sets the final size.
Gas furnace A801X080CM5S
RunTru 80% single-stage, 80,000 BTU
Warranty: 10-year parts and 20-year heat exchanger when registered within 60 days. Parts only, not labor.
My typical furnace for this system size. The load calculation sets the final size.
Gas furnace A801X100CM5S
RunTru 80% single-stage, 100,000 BTU
Warranty: 10-year parts and 20-year heat exchanger when registered within 60 days. Parts only, not labor.
Pay cash or check and it’s about 10% off. Pick it under “How do you plan to pay?”
A new RunTru 80% Gas Furnace on its own, for when the furnace is the part that’s done and your AC or heat pump coil still has years left. An 80% furnace vents through the existing flue.
Not sure of your size? The old nameplate is a starting point, not the answer. I run a load calculation at the estimate visit.
Add to your system
Most installs need nothing extra. About 1 in 10 homes needs new ductwork, and I’ll tell you at the estimate visit.
Nice to have Optional upgrades.
Without my professional installation there is no warranty from me, and a manufacturer can deny its warranty when the equipment is not installed by a licensed HVAC contractor.
A gas furnace connects to your gas line, venting and combustion air. Please have a licensed HVAC contractor install it.
Your size and final price are confirmed in writing after the load calculation, before anything is ordered.
Equipment only is available if you’d rather. A gas furnace should be installed by a licensed HVAC contractor, the warranty has to be registered on time and covers parts, not labor, and equipment is ordered for your job, so ask me about returns before you buy.
- Sizes
- 2, 2½, 3, 3½, 4, 5 ton
- Type
- 80% gas furnace only
- Stages
- Single-stage
The furnace shown for each size is my typical match. The final BTU size comes from the load calculation.
What these terms mean
- AFUE
- How much of the gas a furnace turns into heat. An 80% furnace vents up a metal flue. A 90%+ furnace vents through PVC pipe and needs a drain, so I check your house first.
- Single-stage
- Runs full speed or off. Simple and reliable.
- Two-stage
- Runs on low most of the time and high on the hottest days, for steadier temperatures.
Replacing only what’s worn out keeps the cost where it belongs.
Dave Hartzell, Master HVAC
Install day
- Before install day: an estimate visit and a Manual J load calculation, then your written quote.
- I protect floors and walkways, shut off power and gas, and take out the old furnace.
- New furnace set and leveled, with gas, venting and wiring connected.
- Gas pressure, temperature rise and combustion checked, with readings written down.
- Cleanup, a walkthrough of the thermostat and filter, and the old furnace hauled off.
Your install date comes with your written quote. See my full install standard.
Warranty
- RunTru gas furnace: 10-year parts and 20-year heat exchanger when registered within 60 days.
- Parts only, not labor. You register it for the longer parts coverage, and my post-install email sends you the link.
- My 1-year labor warranty on the installation
Manufacturer warranties cover parts, not labor. My 1-year labor warranty covers the installation.
Paying for it
Ways to pay: cash or check (about 10% off every price), credit cards, and financing through Hearth, Wisetack, JB Financing, Klarna, Synchrony and Wells Fargo. Cash is king, and I take cards too. Hearth, Wisetack, Klarna and JB Financing check offers with a soft credit pull, so looking won’t touch your score. Hearth works with credit scores as low as 550. Subject to credit approval.
Questions about this furnace
How much does a RunTru 80% Gas Furnace cost in Kingfisher Oklahoma?
Pick your system size above: each size shows the furnace price, my $2,660 professional installation and the total. The smallest size starts at $1,990 for the equipment, and you see the final price in writing before anything is ordered.
Will a new furnace work with my AC?
Yes, when the furnace blower is matched to your coil and outdoor unit. I check that match at the estimate visit, so the airflow is right for cooling and heating.
How do I know what size I need?
I run a Manual J load calculation on your house at the estimate visit, so the size comes from the math, not the old unit’s nameplate.
Can I buy the equipment only?
Equipment only is available if you’d rather. A gas furnace should be installed by a licensed HVAC contractor, the warranty has to be registered on time and covers parts, not labor, and equipment is ordered for your job, so ask me about returns before you buy.
Can I finance it?
Ways to pay: cash or check (about 10% off every price), credit cards, and financing through Hearth, Wisetack, JB Financing, Klarna, Synchrony and Wells Fargo. Cash is king, and I take cards too. Hearth, Wisetack, Klarna and JB Financing check offers with a soft credit pull, so looking won’t touch your score. Hearth works with credit scores as low as 550. Subject to credit approval.
Related systems
Other furnaces in 3 ton. Change the size above and these change with it.
Ready to see what fits your house?
I size it with a load calculation. New system? Free estimate. I measure the house and give you a written price, no pressure.