Most Minnesota homeowners deal with two problems at once: an aging furnace and an AC unit that's on its last legs. Replacing both together isn't just convenient — it often makes financial sense, and it ensures your system is properly matched for maximum efficiency. Here's what you need to know about combo replacements in Minnesota.
Why Replace Furnace and AC Together?
Matched System Efficiency
Your furnace's air handler and your AC condenser are designed to work as a matched system. Mismatched equipment — a new high-efficiency AC paired with an old furnace, for example — can't achieve its rated SEER2 efficiency. Manufacturers test and rate systems as a unit. A matched replacement maximizes the efficiency rating you're paying for.
Single Installation Cost
Labor is the biggest cost in HVAC installation. Replacing both systems at once means one mobilization, one set of permits, and one refrigerant charge — saving $500–$1,500 in labor compared to two separate installs 2–3 years apart.
Warranty Alignment
When both units are installed together and registered, warranties run concurrently. If you replace them separately, you end up with different service schedules and potentially different warranty expiration dates — more complexity to manage.
Goodman Combo Systems for Minnesota
Furnace Direct carries matched Goodman furnace + AC systems sized for Minnesota homes:
| System | Furnace | AC | Best For |
|---|---|---|---|
| Standard Comfort | GMSS96 (96% AFUE) | GSX14 (14.3 SEER2) | Budget-conscious replacement |
| Enhanced Comfort | GMVC96 (96% AFUE) | GSX16 (16 SEER2) | Most popular — best value/performance |
| Premium | GMVC96 variable-speed | GSXV9 (up to 24 SEER2) | Maximum efficiency, humidity control |
The Minnesota Climate Reality: Sizing for Both Seasons
Your furnace is sized for heating; your AC is sized for cooling. These are separate calculations in Minnesota's climate — it gets cold enough to need significant heating capacity AND warm/humid enough in summer to need meaningful cooling capacity. Don't assume the same BTU number applies to both. Use our BTU Calculator to size your heating load, and call us for a cooling load estimate based on your home's specifics.
What's Included in a Combo Installation
A complete furnace + AC replacement typically includes:
- New furnace (gas valve, heat exchanger, blower, controls)
- New evaporator coil (sits above the furnace, part of the AC system)
- New outdoor condenser unit
- New refrigerant line set (recommended — old lines may have contamination)
- New condensate drain (for high-efficiency furnace)
- New thermostat (if compatible; many customers upgrade to smart thermostat at this point)
- Permits and inspection (varies by city)
Typical Cost Range: Combo Replacement in Minnesota
Traditional contractor pricing for a quality combo system (96% AFUE furnace + 16 SEER2 AC) typically runs $8,000–$14,000 installed. Through Furnace Direct's factory-direct model, the equipment cost drops significantly — most customers save $2,000–$5,000 on equipment vs. what a contractor would charge for the same Goodman components. Call (888) 762-1334 for current combo pricing.
Permits and Inspections in Minnesota
Most Minnesota cities require permits for furnace and AC replacements. Your installer pulls the permit; the city inspector verifies the installation meets code. This adds $75–$200 to the project but protects your home value and insurance coverage. Never let an installer skip permits — unpermitted work can create problems when you sell the home.
Should I replace the AC if my furnace fails in winter?
If your AC is 10+ years old and you're replacing the furnace anyway, seriously consider doing both. The labor savings are real, and an old AC paired with a new furnace is an efficiency mismatch. That said, if your AC is only 5–7 years old and in good condition, replacing just the furnace is reasonable — make sure the new furnace is properly matched to your existing coil.
How long does a combo installation take?
A full furnace + AC replacement typically takes 6–10 hours for an experienced crew — sometimes two days if there are complications like adding refrigerant line sets or significant ductwork modifications. Plan for a full day without heat (short window) and schedule when mild weather is forecast if possible.
What is an evaporator coil and why does it need to be replaced?
The evaporator coil sits on top of your furnace and is part of the AC system — it absorbs heat from your home's air. When you replace your furnace, the existing coil may not match the new unit's dimensions or refrigerant type (older systems used R-22, now banned). Replacing the coil with the new furnace ensures a proper match and avoids refrigerant compatibility issues.
Does Furnace Direct deliver AC units too?
Yes — Furnace Direct carries matched Goodman furnace and AC systems with same-day delivery in the Minneapolis-St. Paul metro area. We stock common configurations for quick turnaround. Call (888) 762-1334 to confirm availability for your specific system combination.
Get a Combo Quote — Same-Day Delivery Available
Furnace + AC together, factory-direct. Save $2,000–$5,000 vs contractor pricing.
📞 (888) 762-1334 📍 Check Delivery AreaGet wholesale pricing on a new system.
Tell us a little about your home and what you're replacing. We'll send real numbers on a Goodman 96% AFUE setup — shipped direct to your door anywhere in the lower 48. No contractor markup, no obligation.