American Society of Heating, Refrigeration and Air Conditioning Engineer Back to the top.

The lighting of a gaseous mixture to the temperature at which combustion takes place. Back to the top.

1,000 watts. A common unit of electrical consumption measured by the total energy created by one kilowatt in one hour. Back to the top.

Heating, Ventilating and Air Conditioning. Back to the top.

The measure of the moisture content of air. Air conditioners can remove moisture for added comfort. Back to the top.

The ratio of the mass of water vapor to the volume occupied by a mixture of water vapor and dry air. It is measured in grams of water vapor per cubic meter of air. Back to the top.

A machine that adds water vapor to the air to increase humidity. Back to the top.

A humidity sensing device designed to regulate humidity input by recting to changes in the moisture content of the air. Back to the top.

Heating Seasonal Performance Factor. This rating is used in measuring the heating efficiency of a heat pump by taking in account the variations in temperature that can occur within a season and is the [..]

Any coil that serves as a heat source. Back to the top.