HVAC

Discovering the causes of poor indoor-air quality is the first step in creating a healthful home

by Bob Romano

This home uses five systems to reduce its environmental impact, lower its operating cost, and improve its connection to the land by James Tuer

by Charles Peterson

An open letter to President Barack Obama by Alex Wilson

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

The most-important door in your house might just be a blower door

LEED for Homes is a new, comprehensive national certification program for green, energy-efficient homes. Builders who’ve tried it like it, but will it change the way houses are built? by Sean Groom

by Daniel S. Morrison

Do lower water-heating temperatures mean lower energy bills and safer delivery? by Dave Yates

by Bruce Harley

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

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

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