Oct 5, 2026
Which heat pump rules bind new homes, which apply when you replace an AC or furnace, and which wait for a big remodel, plus how to check your own swap.
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Oct 3, 2026
Why city blocks run hotter than the forecast, worst at night, and how to size the AC, cool the roof and attic, and find programs that pay for shade.
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Sep 30, 2026
What EPA Section 608, warranty fine print, permits, and rebate rules mean for a DIY mini-split kit, and how to price the savings before you buy.
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Sep 29, 2026
How to read a DOE Home Energy Score or HERS Index, what it models versus measures, and how the report should change the heat pump or AC you buy.
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Sep 25, 2026
Why a deep overnight setback can cost heat pump owners more than it saves, what aux and emergency heat mean, and which systems suit set-and-forget.
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Sep 22, 2026
How a boiler and its loop work, why hot water heat feels different, what outdoor reset and modulation really buy, and how to cool a radiator house.
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Sep 20, 2026
How to identify the refrigerant in your AC, what the R-22 phaseout and the R-410A to A2L switch mean, and why topping off a leak is not a repair.
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Sep 18, 2026
What actually happens on HVAC installation day: how to prep the house, the realistic timeline, why the permit protects you, and what to collect before final payment.
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Sep 16, 2026
A 2026 guide to replacing a gas furnace: AFUE in real dollars, 80 vs 90-plus venting, orphaned water heaters, staging, sizing, and fair prices.
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Sep 15, 2026
How to test an HVAC repair diagnosis on the spot: refrigerant top-offs, cracked heat exchanger calls, capacitor upsells, and how to get a second opinion.
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Sep 14, 2026
How private equity roll-ups and franchise networks bought the local HVAC shop, what changes after the sale, and how to look up who owns a contractor.
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Sep 12, 2026
Why a bigger AC rarely fixes a hot house: attic air sealing, insulation R-values, duct leaks, shade and windows, in payback order with real costs.
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Sep 11, 2026
A step-by-step fall checklist for going from AC to heat: shutting the condenser down, the first-burn smell, CO alarms, humidifiers, and heat pump prep.
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Sep 9, 2026
How to tell whether your panel can take a heat pump: reading the main breaker, the NEC 220.87 load calculation, 120V units, load management, and real upgrade costs.
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Sep 8, 2026
How zoned HVAC works: motorized dampers, zone panels, bypass versus variable speed, retrofit costs, which floor plans benefit, and how zoned systems fail.
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Sep 6, 2026
How whole-house fans cool a home with night air for pennies an hour, the climates where they beat AC, CFM sizing, attic venting, and the safety caveats.
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Sep 2, 2026
The reversing valve is the one part separating a cooling-only AC from a heat pump. Why the emergency swap moment is when that choice gets made badly.
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Aug 31, 2026
How cold-climate heat pumps hold capacity at 5 degrees: the DOE Challenge spec, ENERGY STAR criteria, defrost, dual fuel, and sizing to design temperature.
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Aug 29, 2026
A step-by-step spring checklist for switching from furnace to AC: shutting the heat down, prepping the condenser, and testing cooling before the first heat wave.
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Aug 25, 2026
How to vet an HVAC company before spending five figures: licensing, EPA 608, insurance, review patterns, what a real estimate includes, and the red flags.
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Aug 19, 2026
Why upstairs runs hotter than downstairs, and the fixes in cost order: damper balancing, return air, attic sealing, duct leaks, zoning, and mini-splits.
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Aug 9, 2026
Remote work can add $120 to $600 a year to your energy bill. Here is how to condition a home office without paying to cool the whole house all day.
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Aug 3, 2026
A 2026 buyer's guide to heat pump water heaters: UEF ratings, first-hour sizing, hybrid modes, placement and ducting, real running costs, and rebates.
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Jul 18, 2026
A homeowner's guide to HVAC ductwork: Manual D design, duct sizing, return air, leakage testing, sealing with mastic or Aeroseal, and when to replace.
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Jul 15, 2026
The 78-degree rule explained: how to set your AC in summer for the best balance of comfort and cost, why humidity matters, and how to schedule setbacks.
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Jul 3, 2026
A 2026 guide to choosing an HVAC system type: how central AC, heat pumps, mini-splits, dual-fuel, and geothermal compare on climate, cost, and ducts.
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Jun 29, 2026
A 2026 homeowner's guide to geothermal heat pumps: horizontal vs vertical vs pond loops, real installed costs, the 25D credit, lifespan, and payback math.
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Jun 19, 2026
A 2026 breakdown of what a new HVAC system really costs: installed price ranges by system type, the line items inside a quote, and what swings the bill.
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Jun 16, 2026
Your AC runs but won't cool? Here are the DIY-safe checks to try first and the pro-only causes that need an EPA-certified technician.
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Jun 5, 2026
A 2026 guide to replacing a central air conditioner: SEER2 and EER2 ratings, the R-410A to R-32 and R-454B refrigerant switch, compressor stages, and sizing.
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Jun 1, 2026
A 2026 guide to buying and installing a smart thermostat: Nest vs Ecobee, C-wire compatibility, ENERGY STAR savings, and a safe step-by-step DIY setup.
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May 26, 2026
A 2026 guide to buying a heat pump: air-source vs ground-source, SEER2 and HSPF2 ratings, Manual J sizing, installation costs, and federal tax credits.
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May 17, 2026
A 2026 guide to every dollar a homeowner can claim on an HVAC project: federal 25C and 25D credits, HEEHRA rebates, financing tips, and how to spot rebate scams.
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May 11, 2026
A whole-house guide to indoor air quality: source control, MERV and HEPA filters, ERV and HRV ventilation, humidity, UV lights, and air monitoring.
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Feb 1, 2025
Home comfort is something most people take for granted, until their furnace stops working on the coldest night of the year or their air conditioner gives out during a July heat wave.
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Feb 1, 2025
Your furnace is one of the hardest-working appliances in your home, and for much of the year, it operates quietly in the background without a second thought.
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Feb 1, 2025
Whether your furnace is making strange noises, your air conditioner is not cooling the way it used to, or you are planning a system upgrade, one of the first questions on any homeowner's mind is: how much is this going to cost?
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