Furnace Replacement Cost Michigan 2026: Real Pricing Guide
NEXT Heating & Cooling | Published March 2, 2026 | 12 min read
If your furnace is making strange noises, struggling to keep up during Michigan's coldest nights, or flat-out died on you during a polar vortex, you're probably Googling one question: What's this going to cost me?
Here's the truth from someone who's been installing furnaces in Southeast Michigan basements for over 35 years: furnace replacement costs in 2026 range from $3,500 to $9,500 for most homes in Macomb, Oakland, and St. Clair counties. That's a wide range, and the difference isn't random — it's based on equipment quality, your home's specific needs, and installation complexity.
This guide breaks down exactly what you're paying for, what affects the final number, and how to avoid getting ripped off. We'll cover equipment tiers, labor costs specific to Michigan, hidden expenses most contractors won't mention upfront, and when replacement actually makes more sense than another repair.
At NEXT Heating & Cooling, we believe you deserve transparent pricing before a technician ever shows up at your door. No games, no pressure tactics — just honest diagnostics and fair pricing from NATE-certified HVAC technicians who've been keeping Michigan homes warm since 1991.
What Furnace Replacement Actually Costs in Michigan (2026)
Let's start with the numbers. Here's what furnace replacement actually costs in Southeast Michigan in 2026, broken down by equipment tier and typical installation scenarios.
Budget-Tier Furnaces: $3,500 – $5,000
This range covers single-stage gas furnaces from reliable manufacturers like Goodman, Amana, or York. These units heat your home effectively and meet current efficiency standards (80% AFUE for standard models, 95%+ AFUE for high-efficiency condensing models), but they don't include premium features like variable-speed blowers or modulating burners.
What's included in this price:
80,000-100,000 BTU gas furnace (appropriate for most 1,500-2,000 sq ft Michigan homes)
Professional installation by licensed Michigan contractors
Basic thermostat (programmable or non-programmable)
Gas line and electrical connections
Removal and disposal of old equipment
Manufacturer warranty (typically 10 years parts, 1-2 years labor)
Michigan mechanical permit and inspection
Budget-tier furnaces work well for straightforward installations in homes with existing, functional ductwork. They're a solid choice if your priority is getting heat back quickly without breaking the bank.
Mid-Range Furnaces: $5,000 – $7,000
This is where most homeowners in Sterling Heights, Troy, and Rochester Hills end up — and for good reason. Mid-range furnaces from Bryant, Rheem, or Carrier offer better efficiency (typically 95-96% AFUE), quieter operation, and features that improve comfort during Michigan's temperature swings.
What you get at this tier:
Two-stage or modulating gas furnace (better temperature control, less cycling)
Variable-speed blower motor (quieter, more efficient, better air circulation)
95-96% AFUE rating (high-efficiency condensing furnace)
Wi-Fi-enabled smart thermostat
Enhanced warranty coverage (often 10 years parts, 5-10 years heat exchanger)
All standard installation items listed above
The efficiency jump from 80% to 96% AFUE means you're wasting less natural gas and saving money every month. On a typical Michigan winter, that can translate to $200-400 in annual savings depending on your home size and gas rates.
Premium Furnaces: $7,000 – $9,500+
Premium-tier furnaces from Lennox, Trane, or Carrier's Infinity series offer the highest efficiency ratings (up to 98.7% AFUE), the quietest operation, and the most advanced comfort features. These systems are designed for homeowners who want maximum efficiency, minimal noise, and precise temperature control.
Premium features include:
Fully modulating burner (adjusts heat output in 1% increments for ultimate comfort)
Variable-speed ECM blower with advanced airflow algorithms
98%+ AFUE efficiency rating
Advanced smart thermostat with zoning capability
Stainless steel heat exchanger (longer lifespan, better corrosion resistance)
Extended warranty coverage (often lifetime heat exchanger, 10 years parts)
Premium furnaces make sense if you're planning to stay in your home long-term, have a larger home (2,500+ sq ft), or want the absolute best efficiency and comfort available. They're also the right choice if you're pairing the furnace with a high-end air conditioning system or whole-home air quality upgrades.
Labor and Installation Costs in Southeast Michigan
Labor typically accounts for $1,500 to $2,500 of your total furnace replacement cost in Metro Detroit. This covers:
Removal and proper disposal of your old furnace
Installation of new equipment according to manufacturer specifications
Gas line connections and pressure testing (critical for safety)
Electrical wiring and disconnect installation
Condensate drain line installation (for high-efficiency furnaces)
Venting (PVC for condensing furnaces, metal for standard furnaces)
System startup, calibration, and testing
Michigan mechanical permit and final inspection
Installation complexity varies. A straightforward swap in a basement furnace room with easy access takes 6-8 hours. If your furnace is in a tight crawlspace, requires new venting through your roof, or needs electrical panel upgrades, expect labor costs on the higher end.
At NEXT Heating & Cooling, our licensed Michigan HVAC contractors handle every installation with the same attention to detail — whether it's a budget-tier unit or a premium system. We pull permits, follow manufacturer specs, and make sure your furnace is sized correctly for your home.
What Drives the Price Up (or Down)
Two identical homes on the same street in Royal Oak can end up with furnace replacement costs that differ by $2,000 or more. Here's what actually affects the final price.
Home Size and BTU Requirements
Furnaces are sized in BTUs (British Thermal Units) — the amount of heat they can produce per hour. A proper load calculation determines the right size for your home based on square footage, insulation levels, window quality, and Michigan's climate zone.
Typical BTU ranges for Southeast Michigan homes:
1,000-1,500 sq ft: 40,000-60,000 BTU
1,500-2,000 sq ft: 60,000-80,000 BTU
2,000-2,500 sq ft: 80,000-100,000 BTU
2,500-3,500 sq ft: 100,000-120,000 BTU
3,500+ sq ft: 120,000-150,000 BTU or multiple zones
Larger furnaces cost more — both in equipment and installation. A 120,000 BTU furnace might cost $800-1,200 more than an 80,000 BTU model from the same manufacturer.
Oversizing is common and costly. Some contractors automatically install 100,000 BTU furnaces in every home because "bigger is better." That's wrong. An oversized furnace short-cycles (turns on and off frequently), wastes energy, creates temperature swings, and wears out faster. A proper load calculation ensures you're not paying for capacity you don't need.
Efficiency Ratings (AFUE) and Long-Term Savings
AFUE (Annual Fuel Utilization Efficiency) measures how much of your natural gas actually heats your home versus what goes up the chimney. Michigan allows both standard-efficiency (80% AFUE) and high-efficiency (90-98% AFUE) furnaces, and the price difference is significant.
Here's the cost difference:
80% AFUE furnace: Lower upfront cost ($3,500-4,500), higher operating costs
95-96% AFUE furnace: Moderate upfront cost ($5,000-7,000), lower monthly bills
98%+ AFUE furnace: Highest upfront cost ($7,000-9,500), lowest operating costs
The payback period matters. If you're planning to stay in your Shelby Township home for 10+ years, the efficiency upgrade pays for itself through lower gas bills. If you're selling in 2-3 years, a mid-range 95% AFUE furnace offers the best balance of upfront cost and resale value.
Real-world example: A 1,800 sq ft home in Clinton Township with an 80% AFUE furnace might spend $1,400/year on heating. Upgrading to a 96% AFUE model drops that to around $1,100/year — a $300 annual savings. Over 10 years, that's $3,000 back in your pocket.
Existing Ductwork Condition
Your ductwork is the highway system that delivers heated air throughout your home. If it's undersized, leaky, or poorly designed, even a brand-new premium furnace won't perform well.
Ductwork issues we see constantly in older Michigan homes:
Undersized ducts that create excessive air velocity and noise
Leaky connections in basements and crawlspaces (30-40% air loss is common)
Uninsulated ducts in unconditioned spaces (massive heat loss)
Disconnected or crushed flex duct
Poor return air design (not enough return vents, undersized return ducts)
If your ductwork needs major modifications or replacement, add $1,500 to $4,000 to your project cost. Minor sealing and insulation might only add $500-800. A full duct replacement in a 2,000 sq ft home can run $3,000-6,000.
The good news: fixing ductwork problems dramatically improves comfort and efficiency. If you're already replacing your furnace, it's the perfect time to address duct issues. Many homeowners tell us the ductwork upgrade made a bigger difference than the new furnace itself.
Installation Complexity
Not all furnace installations are created equal. Location and access affect labor time and cost significantly.
Straightforward installations (lower labor cost):
Basement furnace room with easy access
Existing venting can be reused or easily modified
Adequate electrical service and gas line already in place
Standard furnace-to-furnace swap with no ductwork changes
Complex installations (higher labor cost):
Tight crawlspace or attic installation
Complete venting replacement (especially roof penetrations)
Electrical panel upgrade required for new furnace
Gas line sizing inadequate for new equipment
Structural modifications needed for equipment access
Conversion from oil or electric heat to gas
Older homes in Grosse Pointe, Royal Oak, and Detroit often have furnaces tucked into cramped corners or low-ceiling basements built in the 1950s-60s. Expect to pay more for these installations — not because contractors are gouging you, but because the work genuinely takes longer and requires more skill.
Equipment Brands and What You're Paying For
Walk into any HVAC supply house in Metro Detroit and you'll see a dozen furnace brands. Some cost twice as much as others. Here's what you're actually paying for — and what matters.
Premium Brands: Carrier, Lennox, Trane
These manufacturers occupy the top tier for a reason: engineering quality, component durability, and warranty support. Premium furnaces from these brands typically cost $2,000-3,500 for the equipment alone (before installation).
What sets them apart:
Heat exchanger design: Stainless steel or aluminized steel construction that resists corrosion better than standard steel. Critical in Michigan where condensation from high-efficiency furnaces can cause premature failure in cheaper models.
Blower motors: Variable-speed ECM motors with advanced algorithms that adjust airflow based on real-time conditions. Quieter, more efficient, and better at maintaining consistent temperatures.
Warranty coverage: Often lifetime heat exchanger warranties and 10-year parts coverage. Labor warranties vary by contractor.
Smart home integration: Advanced thermostats and zoning systems that communicate with the furnace for optimal efficiency.
Carrier's Infinity series, Lennox's Signature Collection, and Trane's XV series represent the pinnacle of residential furnace technology. They're engineered for homeowners who want maximum efficiency (up to 98.7% AFUE), whisper-quiet operation, and precise comfort control.
Are they worth the premium? If you're staying in your home long-term and value comfort and efficiency, absolutely. If you're on a tight budget or planning to move in a few years, mid-range options deliver 90% of the performance for significantly less money.
Mid-Range Brands: Bryant, Rheem, Goodman
This is the sweet spot for most Michigan homeowners. Mid-range furnaces cost $1,500-2,500 for equipment and offer excellent reliability, good efficiency (95-96% AFUE), and solid warranty coverage.
Bryant (Carrier's sister brand) and Rheem offer many of the same features as premium brands at lower prices. Goodman has dramatically improved quality over the past decade and now offers reliable, affordable furnaces with 10-year parts warranties.
What you get:
Two-stage heating (better comfort than single-stage)
Variable-speed or multi-speed blowers (quieter, more efficient)
95-96% AFUE efficiency
10-year parts warranty (standard across most manufacturers)
Compatible with modern smart thermostats
We install a lot of Bryant and Rheem furnaces in Macomb County. They perform reliably through Michigan winters, parts are readily available, and they deliver strong value for the price.
Budget Brands: Amana, York, Goodman
Budget-tier furnaces cost $1,200-1,800 for equipment. They meet efficiency standards, heat your home effectively, and come with manufacturer warranties — but they lack premium features and use simpler components.
What you're giving up:
Single-stage heating (on/off operation, less precise temperature control)
Standard blower motors (louder, less efficient than variable-speed)
Basic controls (no smart home integration)
Shorter warranty periods on some components
Budget furnaces make sense for rental properties, homes you're planning to sell soon, or situations where you need heat restored quickly and cost is the primary concern. They're not junk — they're just simpler, less refined equipment.
Warranty Differences That Actually Matter
Every furnace comes with a manufacturer warranty, but coverage varies significantly. Here's what to look for:
Heat exchanger warranty: The most important component. Premium brands offer lifetime warranties. Budget brands typically offer 10-20 years. Heat exchanger failure is rare but catastrophic — it means replacing the entire furnace.
Parts warranty: Standard is 10 years across most brands. Some premium models offer extended coverage on specific components (blower motors, control boards).
Labor warranty: This comes from your contractor, not the manufacturer. At NEXT Heating & Cooling, we warranty our installation labor for one year. Extended labor warranties are available through our Next Care Plan.
Registration requirement: Most manufacturers require you to register your furnace within 60-90 days of installation to activate the full warranty. Miss that window and your coverage might drop to 5 years. Your contractor should handle this for you.
One critical detail: manufacturer warranties cover parts only. You still pay for labor if something breaks. That's why preventive maintenance matters — catching small problems early prevents expensive repairs later.
Hidden Costs Michigan Homeowners Should Know
The furnace replacement quote you receive should include equipment, labor, and basic installation materials. But several legitimate expenses often surprise homeowners because they're not always included in initial estimates.
Ductwork Modifications
Modern high-efficiency furnaces often require different ductwork configurations than older models. If your existing ducts are undersized, poorly designed, or damaged, modifications add $800 to $3,000 depending on scope.
Common ductwork expenses:
Sealing leaky duct connections: $300-600
Adding return air vents: $150-300 per vent
Replacing crushed or disconnected flex duct: $200-400 per run
Insulating basement or crawlspace ducts: $400-800
Resizing supply or return trunks: $800-1,500
Honest contractors identify ductwork problems during the estimate and give you options. You don't always need to fix everything immediately — we can prioritize the most critical issues and address others later.
Electrical Upgrades
High-efficiency furnaces with variable-speed blowers draw more electrical current than older models. If your electrical panel is outdated or your furnace circuit is undersized, upgrades cost $300 to $1,200.
Electrical work includes:
Installing a dedicated 15-20 amp circuit for the furnace
Upgrading the disconnect switch
Running new wiring from the panel to the furnace location
Bringing electrical work up to current Michigan code
Homes built before 1990 often need electrical upgrades. If your panel still has fuses instead of breakers, or if it's a 60-100 amp service, expect this conversation. Electrical work requires a licensed electrician — HVAC contractors can't legally do this work in Michigan.
Thermostat Upgrades
Your old thermostat probably won't work with a new furnace — especially if you're upgrading to a two-stage or modulating system. Thermostat costs range from $150 to $600 installed.
Thermostat options:
Basic programmable: $150-250 installed. Sets temperature schedules, works with most furnaces.
Wi-Fi smart thermostat: $250-400 installed. Remote control via smartphone, learning algorithms, energy reports. Brands like Ecobee and Honeywell.
Manufacturer-specific thermostat: $400-600 installed. Required for some premium furnaces to unlock advanced features. Carrier Infinity, Lennox iComfort, Trane ComfortLink.
Smart thermostats are worth it. Remote control means you can adjust your heat from anywhere — useful when Michigan weather swings 40 degrees in 24 hours. Energy reports show exactly how much you're spending on heating and where you can save.
Venting and Condensate Drain
High-efficiency furnaces (90% AFUE and above) are condensing furnaces — they extract so much heat that water vapor condenses inside the unit. This requires PVC venting and a condensate drain line, which add $400 to $1,200 if your existing setup can't be reused.
Venting considerations:
PVC vent pipes must terminate outside (usually through a sidewall, not the roof)
Condensate drain must connect to a floor drain, condensate pump, or exterior drain
Venting must meet manufacturer specs and Michigan mechanical code
Some installations require two PVC pipes (intake and exhaust)
Standard-efficiency furnaces (80% AFUE) use metal venting up through the chimney. If you're upgrading from 80% to 95%+ AFUE, budget for new venting.
Permits and Inspections
Michigan requires mechanical permits for furnace replacements. Permit costs vary by municipality but typically run $75 to $200. This isn't optional — unpermitted work can cause problems when you sell your home and voids your equipment warranty.
What the permit covers:
Plan review by the local building department
Final inspection to verify installation meets code
Documentation that work was performed by a licensed contractor
Reputable contractors include permits in their quote and handle the entire process. If a contractor suggests skipping the permit to "save money," walk away. That's a red flag.
Old Equipment Disposal
Your old furnace has to go somewhere. Most contractors include removal and disposal in their labor cost, but some charge separately — typically $100 to $200.
Disposal involves:
Disconnecting gas, electrical, and ductwork
Removing the furnace from your basement or crawlspace
Hauling it to a scrap metal recycler
Proper disposal of any hazardous materials
At NEXT Heating & Cooling, we include removal and disposal in every furnace replacement quote. No surprise fees.
When to Replace vs. Repair Your Furnace
Not every furnace problem requires replacement. Sometimes a $300 repair buys you another 3-5 years of reliable heat. Other times, throwing money at an old furnace is like putting new tires on a car with a blown engine.
Here's how to make the right call.
The $5,000 Rule
Multiply your furnace's age by the repair cost. If the result exceeds $5,000, replacement usually makes more financial sense.
Examples:
15-year-old furnace, $400 repair: 15 × $400 = $6,000. Consider replacement.
8-year-old furnace, $500 repair: 8 × $500 = $4,000. Repair makes sense.
20-year-old furnace, $250 repair: 20 × $250 = $5,000. Borderline — depends on other factors.
This rule accounts for both age and repair cost. A major repair on an old furnace is throwing good money after bad. A minor repair on a relatively new furnace is a smart investment.
Age and Efficiency Thresholds
Furnaces last 15-25 years in Michigan, but efficiency and reliability decline significantly after year 15. If your furnace is approaching or past this age, replacement often makes sense even if it's still limping along.
Age-based guidelines:
0-10 years: Repair unless it's a catastrophic failure (cracked heat exchanger). Most components are still in good shape.
10-15 years: Evaluate repair cost vs. efficiency. If you're facing a major repair ($1,000+), consider replacement — especially if your furnace is 80% AFUE or lower.
15-20 years: Strong replacement territory. Even if repairs are affordable, you're likely spending more on gas than you would with a new high-efficiency furnace.
20+ years: Replace. Parts availability becomes an issue, efficiency is terrible by modern standards, and you're living on borrowed time.
Efficiency matters more in Michigan than mild climates. We run our furnaces 5-6 months per year. An 80% AFUE furnace from 2005 wastes hundreds of dollars annually compared to a modern 96% AFUE model. Over 10 years, you're talking thousands in unnecessary gas bills.
Signs Replacement Makes More Sense
Beyond age and repair cost, certain symptoms indicate your furnace is at the end of its useful life:
Frequent repairs: If you're calling for service multiple times per heating season, you're past the point of diminishing returns. Replace before you're stuck without heat during a January cold snap.
Uneven heating: Hot and cold rooms, constant thermostat adjustments, furnace running continuously but not maintaining temperature — these indicate your furnace can't keep up anymore.
Rising energy bills: If your gas bills have crept up significantly over the past few years (and you haven't changed your thermostat habits), your furnace is losing efficiency.
Yellow burner flame: Should be blue. Yellow indicates incomplete combustion and potential carbon monoxide risk. Immediate replacement recommended.
Cracked heat exchanger: This is a safety issue. Cracks allow combustion gases to mix with your home's air. Not repairable — replacement required.
Excessive noise: Banging, screeching, rattling that gets worse over time usually indicates worn bearings, loose components, or failing blower motors. If multiple components are failing, replacement costs less than piecemeal repairs.
We see this constantly in older homes around Detroit and Warren: homeowners spend $300 here, $400 there, trying to keep a 20-year-old furnace alive. After 2-3 years of repairs, they've spent $1,500-2,000 and still end up replacing the furnace. That money would've been better applied toward a new system from the start.
When Repair Makes Sense
Repair is the right call when:
Your furnace is less than 10 years old
The repair cost is under $500
It's a single component failure (blower motor, ignitor, flame sensor)
You've maintained the furnace regularly and this is the first major issue
You're planning to sell your home in the next 1-2 years
Common repairs that make sense:
Ignitor replacement: $150-300
Flame sensor cleaning/replacement: $100-200
Blower motor capacitor: $150-250
Pressure switch: $200-350
Thermostat replacement: $150-400
These are straightforward fixes that restore full functionality without breaking the bank. If your furnace is otherwise in good shape, repair and keep up with annual maintenance.
One more consideration: if you're enrolled in a maintenance plan like our $5/month Next Care Plan, you get 10% off repairs and priority scheduling. That can make the difference between an affordable repair and an emergency replacement during the coldest week of the year.
How to Get an Accurate Estimate
Not all furnace replacement quotes are created equal. Some contractors give you a number over the phone based on nothing but your square footage. Others show up, glance at your furnace, and quote you the most expensive system they sell.
Here's what a legitimate estimate process looks like — and how to avoid getting ripped off.
Why Load Calculations Matter
A proper furnace replacement estimate starts with a load calculation — a detailed analysis of your home's heating requirements. This isn't optional. It's the only way to determine the correct furnace size for your specific home.
What goes into a load calculation:
Square footage and ceiling height
Insulation levels in walls, attic, and basement
Window size, quantity, and quality (single-pane vs. double-pane)
Air infiltration (how drafty your home is)
Michigan climate data (design temperatures for your specific location)
Existing ductwork size and condition
A load calculation takes 30-45 minutes and results in a precise BTU requirement. This prevents oversizing (which wastes money and reduces comfort) and undersizing (which leaves you cold on the coldest nights).
Here's the problem: most contractors skip this step. They use rules of thumb like "1,000 BTU per 100 square feet" or just match the size of your existing furnace. Both approaches are wrong.
Your existing furnace might be oversized. Homes built before 2000 often have furnaces that are 30-50% larger than necessary because contractors used outdated sizing methods. Matching that size means you're paying for capacity you don't need.
At NEXT Heating & Cooling, we perform Manual J load calculations on every furnace replacement. It's part of our process — not an upsell, not optional. We want your new furnace sized correctly so it runs efficiently and keeps you comfortable.
Red Flags in Quotes
Watch for these warning signs when comparing estimates:
Phone quotes without seeing your home: Impossible to provide accurate pricing without evaluating your specific installation.
Pressure to decide immediately: Legitimate contractors give you time to think. "This price is only good today" is a sales tactic, not a reflection of actual costs.
Quotes that don't specify equipment: Brand, model number, AFUE rating, and BTU capacity should all be clearly listed. "High-efficiency furnace" isn't specific enough.
No mention of permits: If the quote doesn't include permit costs, ask directly. Unpermitted work is illegal and voids warranties.
Significantly lower than other quotes: If one contractor's quote is 30-40% cheaper than everyone else's, there's a reason. They might be cutting corners, using inferior equipment, or planning to upsell you once work starts.
Commission-based sales tactics: If the salesperson is more focused on financing options and monthly payments than your home's actual heating needs, you're dealing with a commissioned sales rep, not a technician.
Trust your gut. If something feels off about the sales process, it probably is.
What NEXT Includes in Estimates
When you call NEXT Heating & Cooling for a furnace replacement estimate, here's what happens:
In-home evaluation: A NATE-certified technician visits your home, inspects your existing furnace and ductwork, and performs a load calculation.
Equipment options: We present 2-3 options at different price points — budget, mid-range, and premium. Each option includes specific brand, model, AFUE rating, and warranty details.
Transparent pricing: Equipment cost, labor cost, permit fees, and any additional work (ductwork, electrical, venting) are broken out separately. No hidden fees.
Timeline: We tell you exactly when we can schedule the installation and how long it will take.
Financing options: If needed, we offer financing through third-party lenders. But we never push financing — pay cash if you prefer.
Written quote: Everything in writing, valid for 30 days. No pressure to decide on the spot.
We don't use commissioned salespeople. The technician who evaluates your home is the same person (or team) who will install your furnace. They're not incentivized to upsell you — they're incentivized to solve your heating problem correctly.
Comparing Multiple Quotes
Get at least three quotes. This gives you a sense of market pricing and helps you identify outliers (either suspiciously low or unreasonably high).
When comparing quotes, look beyond the bottom-line number:
Equipment specs: Are you comparing similar furnaces? A 96% AFUE two-stage furnace costs more than an 80% AFUE single-stage — make sure you're comparing apples to apples.
Scope of work: Does every quote include the same work? One contractor might include ductwork modifications while another quotes them separately.
Warranty coverage: Manufacturer warranties are standard, but labor warranties vary. Longer labor warranties add value.
Contractor reputation: Check BBB ratings, Google reviews, and how long they've been in business. We've been serving Southeast Michigan for over 35 years — that longevity matters when you need warranty service in year 8.
Cheapest isn't always best. The contractor who quotes $3,200 might be using a lower-quality furnace, skipping the permit, or planning to cut corners on installation. The contractor who quotes $8,500 might be overpricing or pushing unnecessary upgrades.
Look for the middle ground: fair pricing, quality equipment, transparent process, and a contractor who's been around long enough to stand behind their work.
Ready to Get Started?
NEXT Heating & Cooling has been keeping Michigan homes comfortable for over 35 years. Get honest diagnostics and fair pricing from NATE-certified technicians who show up on time. We'll perform a proper load calculation, present clear options at different price points, and give you a written quote with no pressure to decide immediately.
Frequently Asked Questions
How long does furnace replacement take in Michigan?+
Most furnace replacements take 6-8 hours for a straightforward installation. Complex installations (tight spaces, extensive venting work, ductwork modifications) can take 10-12 hours or span two days. We'll give you an accurate timeline during the estimate. Weather doesn't significantly affect installation since we're working inside, but we recommend scheduling before the coldest part of winter to avoid waiting lists.
Should I replace my furnace and air conditioner at the same time?+
If your air conditioner is 10+ years old and you're replacing your furnace, replacing both makes sense for three reasons: matched system efficiency (furnace and AC are designed to work together), lower combined installation cost (labor overlaps), and synchronized replacement schedules (you won't need another major HVAC project in 3-5 years). If your AC is newer and working well, replace the furnace only. We can evaluate your AC during the furnace estimate and give you honest guidance.
What size furnace do I need for my Michigan home?+
Furnace size depends on your home's specific heating load — not just square footage. A proper Manual J load calculation accounts for insulation, windows, air infiltration, and Michigan's climate. As a rough guideline: 1,500 sq ft homes typically need 60,000-80,000 BTU, 2,000 sq ft homes need 80,000-100,000 BTU, and 2,500 sq ft homes need 100,000-120,000 BTU. But these are estimates — your home might need more or less depending on construction quality and layout. We perform load calculations on every installation to get it right.
Is a 96% AFUE furnace worth the extra cost in Michigan?+
Yes, especially if you're planning to stay in your home 5+ years. The efficiency jump from 80% to 96% AFUE saves $200-400 annually on gas bills for a typical Michigan home. Over 10 years, that's $2,000-4,000 in savings. The upfront cost difference is usually $1,000-1,500, so payback happens in 4-6 years. High-efficiency furnaces also run quieter, maintain more consistent temperatures, and increase home resale value. The exception: if you're selling your home in 1-2 years, the mid-range option offers better ROI.
Can I finance a furnace replacement in Michigan?+
Yes. Most HVAC contractors offer financing through third-party lenders with approved credit. Terms typically range from 12-84 months with interest rates varying based on credit score and promotional periods. Some manufacturers offer 0% financing for 12-18 months during promotional periods. At NEXT Heating & Cooling, we work with multiple lenders to find options that fit your budget. We also accept cash, check, and major credit cards. Emergency replacements qualify for expedited financing approval.
How often should I replace my furnace filter?+
Replace standard 1-inch filters every 30-60 days during heating season. Thicker 4-5 inch media filters last 6-12 months. Homes with pets, smokers, or allergy sufferers should change filters more frequently. Dirty filters reduce efficiency, increase energy bills, and shorten equipment life. Check your filter monthly — if it looks gray or clogged, replace it regardless of timeline. Our Next Care Plan includes filter replacements during seasonal tune-ups, so you don't have to remember.
What's included in the Next Care Plan?+
The Next Care Plan costs $5/month ($60/year) and includes two annual visits — a fall furnace tune-up and spring AC tune-up. Each visit includes full system inspection, cleaning, calibration, filter replacement, and performance testing. Members get priority scheduling (important during Michigan's coldest and hottest days), 10% off all repairs, and no service call fees. The plan pays for itself if you need even one repair per year. It's preventive maintenance that catches small problems before they become expensive emergencies.