Eric Brown owns Central Minnesota Heating and Cooling, the heating and cooling company that has repaired and replaced furnaces, boilers, air conditioners and heat pumps in Minneapolis, Saint Paul and the towns within about 50 miles since 2009. The 145 guides on this site are published under his name.
How these guides are written and checked
- Our own prices come from the list we publish on the pricing page: a $79 trip charge waived with the repair, $129 tune-ups and written installed ranges.
- Every national cost figure names its source, and we never pass one off as our price or as a Minnesota price.
- Rules change, so the guides do too: when the federal 25C credit ended after 2025, and when the EPA changed the refrigerant rules, the affected pages were corrected.
- Safety comes first in every how-to: homeowner steps stop where a technician should take over, and a gas smell always means leave the house and call the utility.
- No invented reviews, customer stories or statistics. If something can't be checked, it isn't printed.
Found something out of date? Call 612-429-3465 and we'll fix the page. More about the company is on the About page.
Heating guides
- Carrier Furnace Error Codes: What the Blinking Light MeansUpdated November 10, 2026
- Goodman Furnace Error Codes and Blinking LightsUpdated November 10, 2026
- How Old Is My Furnace or AC? Find the Date on the Data PlateUpdated November 10, 2026
- Lennox Furnace Error Codes: Blinking Lights and AlertsUpdated November 10, 2026
- Rheem and Ruud Furnace Error Codes: What They MeanUpdated November 10, 2026
- Trane and American Standard Furnace Error CodesUpdated November 10, 2026
- York Furnace Error Codes: What the Flashes MeanUpdated November 10, 2026
- What Should I Set My Thermostat to in a Minnesota Winter?Updated November 10, 2026
- What Does the Blinking Light on My Furnace Mean?Updated October 21, 2026
- How Long Does a Furnace Replacement Take?Updated November 10, 2026
- Orphaned Water Heater: Why a New Furnace Needs a LinerUpdated November 10, 2026
- Why Is My Thermostat Screen Blank?Updated November 10, 2026
- What Is a Manual J Load Calculation?Updated November 10, 2026
- What Size Furnace Do I Need for a Minnesota House?Updated November 10, 2026
- What a Boiler Expansion Tank Does and Signs It's FailingUpdated November 10, 2026
- Is a Communicating HVAC System Worth It in Minnesota?Updated November 10, 2026
- What Is a Furnace Inducer Motor? Signs It's FailingUpdated November 10, 2026
- Furnace Pressure Switch: What It Does and Why It TripsUpdated November 10, 2026
- What Does It Mean When a Furnace Is Red-Tagged?Updated November 10, 2026
- What Is Static Pressure in HVAC, and Why Does It Matter?Updated November 10, 2026
- Can a Furnace Leak Carbon Monoxide? How It HappensUpdated October 21, 2026
- Why Is My Furnace Leaking Water? Causes by Where It DripsUpdated November 10, 2026
- Furnace Noises: What Each Sound Means, When to Shut It OffUpdated November 10, 2026
- How Long Does a Furnace Last in Minnesota?Updated November 10, 2026
- Best Furnace Brands for Minnesota Winters (2026)Updated November 10, 2026
- Carrier vs Trane vs Lennox for a Minnesota HomeUpdated November 10, 2026
- Frozen Condensate Line on a High-Efficiency FurnaceUpdated November 10, 2026
- No Heat in a Minnesota Winter: What to Check Before You CallUpdated November 10, 2026
- Outdoor Wood Boiler vs Gas Furnace in MinnesotaUpdated November 10, 2026
- Oil to Natural Gas Conversion in Minnesota: Steps and CostsUpdated November 10, 2026
- How HVAC Zoning Works, and Whether It Pays Off in MinnesotaUpdated November 10, 2026
- Quietest Furnaces for Minnesota Homes, and Why Ducts MatterUpdated November 10, 2026
- Gas Line Installation Cost for a Furnace or HeaterUpdated October 21, 2026
- Prescott, WI Furnaces: Propane, Flooding and Wisconsin RulesUpdated October 21, 2026
- Furnace Short Cycling: Time the Cycle, Then Find the CauseUpdated October 21, 2026
- Bryant Evolution vs Legacy Furnaces: What You Pay ForUpdated November 10, 2026
- Cracked Heat Exchanger: Symptoms and How It's ConfirmedUpdated November 10, 2026
- Boiler Banging, Kettling or Gurgling: What Each Noise MeansUpdated November 10, 2026
- Furnace Limit Switch Tripping? What to Check FirstUpdated November 10, 2026
- Best Garage Heater for a Minnesota Winter, by TypeUpdated November 10, 2026
- Lennox Furnaces Compared: Merit, Elite and SignatureUpdated November 10, 2026
- Radiant Floor Heat vs Baseboard in MinnesotaUpdated November 10, 2026
- Furnace Burning Smell in Minneapolis: What Each Smell MeansUpdated November 10, 2026
- Frozen Furnace Vent Pipe? How to Clear It in MinnesotaUpdated November 10, 2026
- Propane Heating Costs for Rural Twin Cities-Area HomesUpdated November 10, 2026
- Trane or Carrier Furnace? A Minnesota Buying GuideUpdated November 10, 2026
- Boiler vs Furnace: Which Fits Your Saint Paul Home?Updated November 10, 2026
- Furnace Blowing Cold Air: What to Check, in OrderUpdated November 10, 2026
- 96% vs 98% AFUE Furnace: Worth the Upgrade in Minnesota?Updated October 21, 2026
- Furnace Won't Ignite: Find Where the Startup StopsUpdated November 10, 2026
Cooling guides
- Why Is the Fan on My Outdoor AC Unit Not Spinning?Updated November 10, 2026
- How Long Does a Central Air Conditioner Last in Minnesota?Updated November 10, 2026
- Why Is My AC Freezing Up? Ice on Lines or CoilUpdated November 10, 2026
- R-454B and R-32: What the Refrigerant Change MeansUpdated October 21, 2026
- SEER2 vs SEER: What the New AC Rating MeansUpdated November 10, 2026
- AC Leaking Water Inside the House: Causes and What to DoUpdated November 10, 2026
- Does the Furnace Need to Be On for AC to Work?Updated November 10, 2026
- Best Central AC Brands for Minnesota (2026)Updated November 10, 2026
- Carrier Performance vs Comfort Air Conditioners ComparedUpdated November 10, 2026
- Replacing AC in River Falls, WI: RFMU, Permits and SizingUpdated November 10, 2026
- High-Velocity AC for Older Minnesota Homes: Pros and ConsUpdated October 21, 2026
- Clogged AC Condensate Drain: How to Find It and Clear ItUpdated November 10, 2026
- R-22 AC in Minnesota: Repair, Recharge or ReplaceUpdated November 10, 2026
- AC Humming Noise: What the Sound Means and What to DoUpdated November 10, 2026
- Why Your AC Smells Like Dirty Socks, and How It Gets FixedUpdated September 25, 2026
- AC Tonnage for Minneapolis Bungalows, Ramblers and MoreUpdated November 10, 2026
- Signs Your AC Evaporator Coil Is LeakingUpdated November 10, 2026
- Rheem vs Goodman Air Conditioners: What Actually DiffersUpdated November 10, 2026
- 2-Stage vs Variable-Speed AC: Which Fits a Minnesota Home?Updated November 10, 2026
- AC Not Turning On? What to Check First in a Minneapolis HomeUpdated November 10, 2026
- AC Running but Not Cooling? What to Check, in OrderUpdated November 10, 2026
- Ductless Mini-Split vs Central AC: Which Fits Your House?Updated November 10, 2026
- How to Size Central AC for a Twin Cities HomeUpdated November 10, 2026
Heat Pumps guides
- Why Is My Heat Pump Blowing Cold Air in Winter?Updated November 10, 2026
- Is It Normal for a Heat Pump to Run Constantly in Winter?Updated November 10, 2026
- Aux Heat vs Emergency Heat on a Heat Pump ThermostatUpdated November 10, 2026
- HSPF2 and COP: Heat Pump Ratings for Minnesota WintersUpdated November 10, 2026
- Heat Pump vs Gas Furnace in Minnesota: Cost and Dual FuelUpdated October 21, 2026
- Switching From Propane to a Heat Pump in Rural MinnesotaUpdated November 10, 2026
- Heat Pump Defrost Cycle: What's Normal in a Minnesota WinterUpdated November 10, 2026
- Electric Furnace vs Heat Pump in MinnesotaUpdated November 10, 2026
- Daikin vs Mitsubishi Mini-Splits: A Room-by-Room GuideUpdated November 10, 2026
- Wall-Mounted vs Floor-Mounted Mini-Splits in MinnesotaUpdated November 10, 2026
- Multi-Zone Mini-Split Layouts for Minnesota HomesUpdated November 10, 2026
- Heat Pump vs Electric Baseboard Heat in MinnesotaUpdated November 10, 2026
- Mitsubishi Hyper-Heat vs Standard Mitsubishi Heat PumpsUpdated November 10, 2026
- Heat Pump Water Heaters in Minnesota BasementsUpdated November 10, 2026
- What a Heat Pump Does on a -20°F Night in MinnesotaUpdated November 10, 2026
- 8 Heat Pump Buying Mistakes Minnesota Homeowners MakeUpdated November 10, 2026
- Dual-Fuel Heating in Minnesota: Heat Pump Plus FurnaceUpdated November 10, 2026
- Daikin FIT Heat Pump Review for Minnesota HomesUpdated November 10, 2026
- Do Heat Pumps Work in Minnesota Winters?Updated November 10, 2026
Air Quality guides
- Make-Up Air for Minnesota Range Hoods: When It's NeededUpdated November 10, 2026
- Does Central AC Bring In Outside Air?Updated November 10, 2026
- Duct Smoke Detectors: Does a Home HVAC System Need One?Updated November 10, 2026
- Is Lennox PureAir S Worth It? What It Does and Who It FitsUpdated November 10, 2026
- Why Is My Furnace Filter Turning Black?Updated November 10, 2026
- Leaky Ducts in Minnesota Homes: Symptoms and SealingUpdated November 10, 2026
- Best MERV Rating for Allergies in a Minnesota HomeUpdated November 10, 2026
- Where to Put Carbon Monoxide Alarms in a Minnesota HomeUpdated October 21, 2026
- Whole-House Dehumidifiers in Minnesota: Do You Need One?Updated November 10, 2026
- UV Lights for HVAC: Pros, Cons and When They Pay OffUpdated October 21, 2026
- Is Duct Cleaning Worth It in Minnesota Homes?Updated November 10, 2026
- Aprilaire 5000 vs 2000 Series: Which Air Cleaner to Buy?Updated November 10, 2026
- ERV vs HRV in Minnesota: Which Ventilator Fits Your House?Updated November 10, 2026
- Whole-Home Humidifiers for Minnesota: Bypass, Fan or SteamUpdated November 10, 2026
- Indoor Air Quality in a Minnesota Winter: What HelpsUpdated November 10, 2026
Maintenance guides
- How Often to Change a Furnace Filter in MinnesotaUpdated November 10, 2026
- Can You Run a Furnace Without a Filter?Updated November 10, 2026
- What's Normal When You First Turn On the Furnace in FallUpdated November 10, 2026
- Best Place for a Thermostat, and 7 Spots to AvoidUpdated November 10, 2026
- How to Clean Your Outdoor AC Coil Without Damaging ItUpdated November 10, 2026
- What a Furnace Inspection Covers, and Why Each Check MattersUpdated November 10, 2026
- How to Clean a Furnace Flame Sensor SafelyUpdated November 10, 2026
- Thermostat C-Wire: What It Does and How to Add OneUpdated October 21, 2026
- Spring AC Tune-Up Checklist for Minnesota HomesUpdated November 10, 2026
- Should You Cover Your AC Unit in a Minnesota Winter?Updated November 10, 2026
- Honeywell Home vs Sensi Thermostats: Which Fits Your SystemUpdated October 21, 2026
- Smart Thermostats for Minnesota Weather: What Matters HereUpdated November 10, 2026
- Why One Room Is Always Hotter or Colder, and How to Fix ItUpdated October 21, 2026
- HVAC Maintenance for Hudson, WI Homes: Season by SeasonUpdated November 10, 2026
- Fall Furnace Checklist: What to Do Before WinterUpdated November 10, 2026
Pricing guides
- Boiler Replacement Cost in Minnesota (2026)Updated November 10, 2026
- Furnace and AC Replacement Cost in MinnesotaUpdated November 10, 2026
- AC Replacement Cost in Minnesota (2026)Updated November 10, 2026
- Furnace Repair Cost in Minnesota (2026)Updated November 10, 2026
- Heat Pump Installation Cost in Minnesota (2026)Updated November 10, 2026
- How to Choose an HVAC Contractor in MinneapolisUpdated November 10, 2026
- HVAC Permits in Minneapolis and Saint Paul ExplainedUpdated November 10, 2026
- High-Efficiency AC Payback in Minnesota: SEER2 vs SavingsUpdated November 10, 2026
- Tankless vs Tank Water Heater in MinnesotaUpdated November 10, 2026
- Carrier Infinity Heat Pump Cost in MinnesotaUpdated November 10, 2026
- Central AC vs Ductless: Which Costs Less to Install?Updated November 10, 2026
- AC Refrigerant Recharge Cost in Minnesota (R-410A and R-22)Updated November 10, 2026
- Geothermal Heat Pump Cost in MinnesotaUpdated November 10, 2026
- Furnace Blower Motor Replacement Cost: PSC vs ECMUpdated November 10, 2026
- AC Capacitor Replacement Cost in MinnesotaUpdated November 10, 2026
- Mitsubishi Mini-Split Cost in Hudson, WIUpdated November 10, 2026
- Furnace Replacement Cost in Minnesota (2026)Updated November 10, 2026
Rebates guides
- Minnesota Heat Pump Rebates in 2026: What's Available NowUpdated November 10, 2026
- Dakota County HVAC Rebates and Programs: Where to StartUpdated November 10, 2026
- IRA HVAC Tax Credits Ended: What Minnesota Can Still GetUpdated November 10, 2026
- Xcel Energy AC Rewards: Is It Worth Enrolling?Updated November 10, 2026
- CenterPoint Furnace Rebates: How the 2026 Program WorksUpdated November 10, 2026
- Xcel Energy and CenterPoint HVAC Rebates in 2026Updated November 10, 2026