Furnace Installation in Overland Park, KS
A new furnace in Overland Park has to perform on the coldest night of a Johnson County winter — roughly a 13°F design low with cold snaps below it. That’s not the night to discover the unit was sized by guesswork or vented wrong. 7th Degree Heating and Air installs gas and electric furnaces across Overland Park, sized with a load calculation, matched to the home and budget, and started up with combustion verified and carbon monoxide checked — from a base just east in Leawood.
Right for Your Part of Overland Park
OP’s range changes the furnace decision. An older home near Shawnee Mission may have an aging furnace in a tight mechanical space with original ductwork, where a careful replacement and airflow improvements matter as much as the unit. A newer Blue Valley or south-OP build is tightly sealed and well-insulated, carrying a lower heat-loss load that demands honest sizing rather than matching the old nameplate. We run an ACCA Manual J calculation, then Manual S to match equipment, and we’ll walk you through the real tradeoff between a standard 80% AFUE furnace and a high-efficiency 90%+ condensing unit, which burns less gas but needs PVC venting and a condensate drain.
What Our Overland Park Installation Includes
- Manual J load calculation sized to your home, with staging options explained.
- Code-compliant venting — correct flue or PVC for the furnace type.
- Gas line and pressure verification on your natural gas service.
- Old furnace removed and disposed of.
- Permits pulled through the Johnson County building department, warranty registered.
- Combustion verified on startup — manifold pressure set, carbon monoxide measured air-free.
Frequently Asked Questions
- What size furnace does my Overland Park home need?
- The size a Manual J load calculation says you need, not the size of the old furnace, which may have been oversized. We measure your home’s heat loss and select to match. That’s worth doing in Overland Park, where an older north-OP home and a newer Blue Valley build carry very different loads.
- Should I get an 80% or a 90%+ AFUE furnace?
- AFUE is how much fuel becomes usable heat. An 80% furnace costs less up front and uses standard metal venting; a 90%+ condensing furnace captures more heat, vents through PVC, and needs a condensate drain, saving gas over time. Which one pencils out depends on your home and how long you’ll stay — we’ll run the comparison.
- Gas furnace, electric, or a heat pump for my OP home?
- Most Overland Park homes are on natural gas, and a gas furnace is often the most cost-effective heat for our winters. A heat pump or dual-fuel system can make sense depending on your energy costs and goals. We lay out the options for your specific home rather than pushing one path.
- Do you verify safety after installation?
- Always. We set manifold gas pressure to spec, measure carbon monoxide air-free at startup, confirm the venting draws correctly, and verify the heat exchanger and safeties. A furnace is a combustion appliance, and we don’t call an install finished until it’s confirmed safe.
- How long does a furnace installation take?
- A standard replacement is usually a single day. Switching efficiency types (which changes the venting), relocating the unit, or adding gas or electrical work can extend it. We give you a realistic timeline with the quote.
Contact 7th Degree Heating and Air
Serving Overland Park and all of eastern Johnson County, including Leawood, Prairie Village, Mission, Merriam, and Lenexa, with 24/7 emergency service.
- Emergency Line (24/7): (913) 354-6552
- Address: 12720 Catalina St, Leawood, KS 66209
- Email: info@7thdegreeheatingandair.xyz
- Johnson County Class “DM” Mechanical License: DM-24-11873
- EPA Section 608 Universal: EPA-608-U-457921
Office Hours
- Emergency Service: 24 hours a day, 7 days a week
- Office Staff: Monday – Saturday, 9:00 AM – 5:00 PM
- Sunday: By appointment
- Closed: Holidays (emergency line always active)