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HVAC Systems

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The next wave of home energy?

Micro-cogenerators, or combined heat and power (CHP) systems, are both environmentally friendly and a money saver by Lynn Underwood

Q & A: Will a rooftop fan cure a stuffy upstairs?Online Membership Required

by Bruce Harley

Houses Need to Breathe … Right?

Tight houses are energy efficient, but good ventilation is essential to make them healthful and comfortableby Max H. Sherman

Retrofitting a Ceiling FanOnline Membership Required

With common-sense wiring and the right hardware, you can replace an existing light fixture with a breeze in almost any room in the houseby Clifford A. Popejoy

Evaporative Cooling

Architect Berry Langford explains how an evaporative cooling unit cools a house by adding humidityby Berry Langford

Energy-Saving ThermostatsOnline Membership Required

Easy to install, these programmable gizmos can save money and keep you comfortableby Sean Groom

Warm Floors Now Easier Than EverOnline Membership Required

Radiant-panel systems a carpenter can install are perfect under a wood floorby Rick Arnold

Breathing Fresh Air Into Bathroom VentilationOnline Membership Required

Powerful, quiet exhaust fans and their smart switches have made it easy to avoid mold, mildew, and stale air in the bathby Scott Gibson

Central Air Conditioning: Bigger Isn't BetterOnline Membership Required

Whether it's new or a replacement, a properly sized and installed system affords greater savings and comfortby Chris Green

Editors PickBuilt Wrong from the StartOnline Membership Required

Top 10 blunders that rot your house, waste your money, and make you sickby Joseph Lstiburek

Q & A: Whole-house fansOnline Membership Required

by Peter L. Pfeiffer

Venting a Downdraft RangeOnline Membership Required

Careful planning and precise layout keep the smoke out of your eyesby David Getts

Q & A: Treating a crawlspace as a basementOnline Membership Required

by William B. Rose

Q & A: Venting a bathroom through SIPsOnline Membership Required

by Anthony Zaya

What's Hot in Bathroom Heaters?Online Membership Required

There are lots of options for taking the chill off. Which one fits your house?by David Ericson

Installing a Geothermal Heating and Cooling SystemOnline Membership Required

Ground-source heat pumps rely on buried water loops to heat and cool efficiently and economicallyby William J. Evangelist

Ensuring the Durability of Energy-Efficient HousesOnline Membership Required

Why are so many of today's homes plagued by rot, mildew and stale air, and what can we do about it?by Stephen Smulski

Q & A: Standard-efficiency gas appliances vented into masonry chimneysOnline Membership Required

by Mark Eatherton

Q & A: Neutralizing excess boiler acidOnline Membership Required

by Mark Eatherton

Q & A: Too much humidity from oversize air conditionerOnline Membership Required

by Russell A. Bertrand

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