A construction element that inhibits termites from entering building foundations and walls.

A house built into the ground or slope of a hill, or which has most or all exterior surfaces covered with earth.

The flow of heat from one area to another by conduction, convection, and/or radiation. Heat flows naturally from a warmer to a cooler material or space.

A class of power generator that is not a regulated utility and that has generating plants for the purpose of supplying electric power required in the conduct of their industrial and commercial operations.

A mechanical/electrical device used to pull air out of an interior space; usually located in the highest location of a building, in the ceiling, and venting to the attic or directly to the outside.

The practice of using a single meter to measure consumption and generation of electricity by a small generation facility (such as a house with a wind or solar photovoltaic system). The net energy produced or consumed is purchased from or sold to the gener ...

A generic term for an electrical conductor.

All the components of the appliance used to condition interior air of a building.

The discomfort or interference with visual perception when viewing a bright object against a dark background.

Any coefficient used to calculate heat transmission by conduction, convection, or radiation through materials or structures.

A heat exchanger for recovering heat from flue gases for heating water or air.

A heating system, such as a solar water heater or geothermal heatpump, in which the working fluid is heated and used directly; in an open-loop solar system, the domestic water is circulated in the collector loop.

A measure of the amount of light incident on a surface; measured in foot-candles or Lux.

The use of devices to limit or prevent the release of pollution into the atmosphere.

A construction element used for ceiling support.

The change in heat content that occurs with a change in phase and without change in temperature.

The coldest months of the year; months where average daily temperatures fall below 65 degrees Fahrenheit creating demand for indoor space heating.

Ventilation that is created by the differences in the distribution of air pressures around a building. Air moves from areas of high pressure to areas of low pressure with gravity and wind pressure affecting the airflow. The placement and control of doors ...

A system capable of rotating about one axis.

A device that releases pressure within a radiator when the pressure inside exceeds the operating limits of the vent.