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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RV Air Conditioner: Amps, 30 vs 50 Amp Service, Generator and Battery Math
An RV air conditioner draws about 13 to 16 running amps in maker spec sheets. We tabulate Dometic, Coleman-Mach and Furrion data, then do the 30 and 50…
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Ozone Generator: What EPA Found, the Legal Limits and When Ozone Is Used
Ozone generators make a lung irritant on purpose. We read EPA’s evidence review, the FDA, OSHA and EPA rules in the eCFR and California’s air cleaner law, and…
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Garage Door Insulation: R-Value vs Tested U-Factor, and the Heat Loss Math
What insulating a garage door really changes: why the R-value label is not the door’s tested U-factor, worked heat-loss math for six door types at EIA’s October 2026…
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Patio Heater Guide: Propane vs Gas vs Electric, Cost per Hour and Tank Runtime
Propane, natural gas and electric patio heaters compared with EIA prices, NIST propane density and the fire code rules on balconies, clearances and tip-over switches.
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Wet Bulb Temperature: What It Is, How to Calculate It, and Why HVAC Runs on It
Wet bulb temperature is the lowest temperature evaporation can cool air to. The NWS definition, the Stull formula, a 95°F worked table, swamp cooler and cooling tower uses,…
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Dew Point: What It Means Indoors, How to Calculate It and When Surfaces Sweat
Dew point explained for the inside of a house: the NWS definition and comfort scale, a step-by-step calculation, where condensation forms, and EPA and ASHRAE limits converted to…
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Weatherization Assistance Program: 2026 Eligibility, Cost Cap, Measures and Results
How the DOE weatherization assistance program works in 2026, read from the regulation and DOE’s notices: who qualifies, the $8,813 cost cap, what crews install, and what the…
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LIHEAP 2026: Funding, Who Qualifies, Benefits by State and How to Apply
LIHEAP served 5,703,340 households in FY2025, 14% of those eligible, with a $396 average heating benefit. FY2026 funding, every state’s allocation and benefit, the real income ceiling and…
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Landlord Air Conditioning Laws by State and City: Maximum Indoor Temperatures
Cooling rules for rentals in nine jurisdictions, read from the code text: who is covered, the maximum indoor temperature, the season, and what tenants can do when the…
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Landlord Heat Requirements by City and State: Minimum Temperatures and Dates
Minimum heat rules for rentals in nine jurisdictions, read from the code text: heat season dates, day and night minimums, how temperature is measured, and where tenants file…