Homeowners
Plain-language cost guides for homeowners: repair versus replace, running costs by state, safety, and how to read an HVAC contractor’s quote.
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Garage Ventilation: What the Codes Require for an Attached Garage
An attached garage is a ventilation problem for the house. Here is what CPSC, EPA, the IRC and ASHRAE 62.2 actually require, and where the 70 cfm exhaust…
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Crawl Space Ventilation: Vented or Sealed, Settled by Code and Building Science
IRC R408 gives crawl space ventilation two legal paths: vent at 1 square foot per 150 square feet of ground, or seal the ground and add mechanical drying.…
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Radiator Heating Repair: Steam or Hot Water Decides Every Fix
Radiator heating repair splits on one question: steam or hot water. A cold top on hot water means bleeding. A cold or banging steam radiator means a failed…
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Whole House Humidifier Installation: Mounting, Water, Drain and Wiring
Where each humidifier type mounts, why the saddle valve is a code problem, what the drain air gap has to be, how it wires to the furnace board,…
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Attic Fan Installation: Intake Area, CFM Sizing and the Fire Point
A powered attic ventilator needs one square foot of net free intake per 300 cfm, which is more low vent area than a code minimum attic gets. What…
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Boiler Installation: What the Job Involves and What Code Requires
A residential boiler installation is five linked jobs: load calculation, venting path, combustion air, near-boiler piping with controls, and a commissioning test. Here is what federal law and…
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Radon Mitigation System: How the Fan, Pipe and Vent Work Together
A radon mitigation system is a suction point, a sealed pipe, a continuously running fan and a roof vent. EPA’s action level, the fan’s watt draw and what…
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Solar Water Heater in 2026: Ratings, Freeze Risk and the Ended Credit
How active and passive solar water heating systems handle freezing, what OG-300 and the Solar Energy Factor measure, DOE sizing rules, and why the federal credit is gone.
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Auxiliary Heat vs Emergency Heat: What AUX and EM HEAT Really Cost
Auxiliary heat runs alongside the compressor, emergency heat locks it out. Federal efficiency data and June 2026 EIA electricity prices show what each mode costs per million Btu.
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Electric Baseboard Heater vs Heat Pump: Watts, Cost and Sizing
Electric baseboard runs 250 watts per linear foot at 240 volts and converts 100% of the electricity to heat, but at a COP of 1.0 it costs 3.25…