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Energy & Utilities

Household energy, efficiency and utility-related decisions explained clearly.

A gloved hand applies black sealant along a wooden window sill beside exposed insulation.

Energy & Utilities

Weatherstrip, Caulk, or Foam? Matching the Fix to the Air Leak

Knowing whether to weatherstrip, caulk, or foam an air leak makes the difference between a fix that lasts years and one that fails by winter's end.

A technician wearing gloves works on the control panel of an open heating unit in a workshop.

Energy & Utilities

How to Cut Water-Heating Costs Before Replacing Your Water Heater

Before replacing your water heater, start with the changes that cost little or nothing: check the temperature setting, reduce unnecessary hot-water use, insulate accessible pipes, and use efficient fixtures. Then compare controls and replacement options based on your heater type, household demand, and available space.

A hand holds a measuring tape across a white, fluffy material.

Energy & Utilities

Does Your Attic Need More Insulation—or Better Air Sealing?

Before you pay for more attic insulation, check whether the real problem is low insulation, air leakage, moisture, or blocked ventilation. A careful inspection from the access hatch can help you ask better questions and avoid covering a problem that should be fixed first.

A round analog thermometer and hygrometer gauge with black needles, white face, and gold rim mounted on a light wooden surface.

Energy & Utilities

Why Your Windows Are Wet Inside—and How to Stop the Condensation

Interior window condensation usually means humid indoor air is meeting cold glass. Use this troubleshooting guide to find the cause before replacing windows or repainting damaged trim.

Modern bedroom with a tufted cream bed, pendant lights, large windows with blinds, built-in storage, and a mirrored wall.

Energy & Utilities

HVAC Filter or Portable Air Purifier? What Each One Actually Does

An HVAC filter can provide whole-home particle filtration when your heating or cooling system runs. A portable air purifier is usually better for one bedroom, nursery, or other priority room. Neither device fixes moisture, humidity, or the source of mold.