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Home improvement guides
Practical, reviewed advice for planning repairs and projects, choosing the right pro and knowing what to ask before you hire.
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497 guides
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Thermostat Installation guide
A thermostat is the cheapest part of a heating and cooling system and the one with the most influence over what the system costs to run.
9 min readSeptember 14, 2026 - Guide
Smart Thermostats guide
A smart thermostat is a connected control that decides when your heating and cooling equipment runs. In the United States the category has an unusual advantage for a shopper: EPA certifies smart thermostats under ENERGY…
11 min readSeptember 21, 2026 - Guide
Ductwork guide
Ductwork is the part of a heating and cooling system nobody looks at and everybody feels. The equipment makes the conditioned air; the ducts decide whether it arrives.
8 min readSeptember 14, 2026 - Guide
Duct Cleaning guide
Duct cleaning is marketed harder than almost any other home service, usually with a photograph of a filthy vent and a promise of cleaner air. The federal agency responsible for indoor air quality is far more cautious.
9 min readSeptember 14, 2026 - Guide
HRV & ERV Systems guide
A heat recovery ventilator and an energy recovery ventilator do the same basic job: bring outdoor air in, push indoor air out in equal measure, and pass the two streams through a heat exchanger so most of the energy in…
11 min readSeptember 21, 2026 - Guide
Ventilation guide
Ventilation is the deliberate exchange of indoor air for outdoor air, and it covers two different jobs in a house.
8 min readSeptember 14, 2026 - Guide
Humidifiers guide
Adding moisture to indoor air is one of the few home comfort measures where the federal guidance includes a ceiling as well as a floor.
11 min readSeptember 21, 2026 - Guide
Dehumidifiers guide
A dehumidifier is a moisture removal appliance, and the first thing worth knowing is that it is the third-best answer to most damp problems.
10 min readSeptember 21, 2026 - Guide
Air Purification guide
Air cleaning is the most heavily marketed corner of indoor air quality and the one where EPA's language is most restrained.
11 min readSeptember 21, 2026 - Guide
Indoor Air Quality Testing guide
Indoor air quality testing is a service homeowners buy expecting a verdict and often receive a number instead. EPA's guidance sets out when measurement is the right move and when it is not: for pollutants other than…
11 min readSeptember 21, 2026 - Guide
Fireplace Installation guide
Putting a fireplace into an American home is mostly a venting decision wearing a decorative face. The appliance itself may be a factory-built firebox framed into a new wall, an insert slid into a masonry opening that…
11 min readSeptember 14, 2026 - Guide
Fireplace Repair guide
Fireplace repair is work on the appliance and the room side of the system: the firebox and its refractory panels, the damper, the smoke shelf and chamber, the doors, gaskets and glass on an insert or stove, the baffle…
9 min readSeptember 14, 2026
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