HVAC
Furnace Installation
Sized by calculation. Installed right the first time.
Most furnaces in the Twin Cities are oversized — sized by the square foot instead of calculated for the house. An oversized furnace short-cycles, heats unevenly, and dies young. Every Stratum installation starts with a genuine heat-loss calculation we run ourselves, so the system you buy is the system your house actually needs.
Signs it’s time to replace, not repair
- Your furnace is 15+ years old and repairs are getting more frequent
- A cracked heat exchanger or failed blower on an older unit
- Some rooms roast while others freeze — often a sizing or duct problem
- Heating bills keep climbing despite tune-ups
- You’re planning an addition or remodel — the right time to right-size
How we handle furnace installation
Engineered load calculation
A real heat-loss calculation for your actual house — insulation, windows, orientation — not a rule-of-thumb tonnage guess.
High-efficiency options, honestly compared
92–98% AFUE gas furnaces, dual-fuel, and cold-climate heat pump pairings — with the payback math for each, in writing.
Complete installation
Permits, venting, gas line, condensate, smart thermostat setup, haul-away of the old unit, and city inspection — handled.
Ductwork evaluated, not ignored
A perfect furnace on bad ductwork is still a bad system. We measure static pressure and fix restrictions before they choke your new equipment.
Your quote, upfront
Every quote is a fixed, itemized number based on your load calculation — never a per-square-foot guess.
Schedule a Free QuoteFrequently Asked Questions
What size furnace do I need?
The only honest answer comes from a load calculation — square footage alone routinely over-sizes by 30–50% in Twin Cities housing stock. Bigger is not safer: oversized furnaces short-cycle, wear out early, and heat unevenly. We include the engineering calc with every quote.
How long does a furnace installation take?
A straightforward replacement is typically one day. Add venting changes, ductwork corrections, or a simultaneous AC install and it can run two. Your quote includes the schedule commitment.
Is a 96% furnace worth it over an 80%?
In our climate, usually yes — Minnesota heating hours are long enough that the efficiency gap pays back. But it depends on your gas prices, how long you’ll stay, and venting costs. We show the actual payback math for your house and let you decide.
Do you handle the permit and inspection?
Always. Mechanical permits are required for furnace replacement in Twin Cities metro cities, and an uninspected install can bite you at home-sale time. We pull the permit and meet the inspector.
Need furnace installation?
Serving Minneapolis, St. Paul, Bloomington, Edina, Minnetonka, St. Louis Park, Eagan, Maple Grove and the surrounding metro.