The loss of heat from a building to outdoors through the transfer of energy by conduction, convection, radiation and mass transfer. Heat energy naturally moves from warmer areas to colder areas. Conduction: heat energy moves through solid materials Convection: heat is lost through the movement of air Radiation: heat energy is absorbed by a build [..]

The transfer of heat from inside to outside by means of conduction, convection, and radiation through all surfaces of a house.

The amount of heat lost, in BTU’s from a space to be conditioned, at the local winter outdoor design temperature and a specified indoor design condition.

Losses due to resistance take the form of heat which has to be dissipated into the air or surrounding cooling medium. Heat loss is also referred to as I2R loss because the current squared, multiplied [..]

The rate of heat transfer from a building interior to the outdoors.

The amount of heat subtracted from a designated area.

The amount of heat lost, measured in BTU’s from a space to be conditioned, at the local winter outdoor design temperature and a specified indoor design condition.

The rate of heat transfer from a building interior to the outdoors.

The heat transmission rate multiplied by the area of the door.

Measured in BTU’s, the amount of heat that a structure loses using specific indoor and outdoor design temperatures for a specific geographical location.

The amount of heat lost, in BTU’s from a space to be conditioned, at the local winter outdoor design temperature and a specified indoor design condition.

The rate of heat transfer from a building interior to the outdoors. Back to the top.

The amount of heat that is lost from an indoor area during the heating season, measured in BTUs.

The amount or quantity of heat escaping or leaving a space or an area. Specifically, that heat escaping from a house during the season of the year when interior heating is desired. It is the quantity [..]

The rate of heat transfer from a heated space to the outdoors.

The rate of heat transfer from a building interior to the outdoors.

The rate of heat transfer from a building interior to the outdoors.

 Heat transfer from the inside of a house to the outside due to conduction, convection, and radiation through all surfaces. High-Performance™ Low-E4® Glass

The rate of heat transfer from a building interior to the outdoors. Back to the top.

The amount of heat lost, measured in BTU’s from a space to be conditioned, at the local winter outdoor design temperature and a specified indoor design condition.

The rate of heat transfer from a heated space to the outdoors.

The amount of heat lost, in BTU’s from a space to be conditioned, at the local winter outdoor design temperature and a specified indoor design condition.

The amount of heat lost, measured in BTU's from a space to be conditioned, at the local winter outdoor design temperature and a specified indoor design condition.

The amount of heat lost, in BTU’s from a space to be conditioned, at the local winter outdoor design temperature and a specified indoor design condition.

The amount of heat lost, measured in BTU's from a space to be conditioned, at the local winter outdoor design temperature and a specified indoor design condition.

The heat that flows from the building interior, through the building  envelope to the outside environment.

The rate of heat transfer from a building interior to the outdoors.

 The rate of heat transfer from a building interior to the outdoors.

The rate of heat transfer from a building interior to the outdoors.

The amount of heat that escapes through the building shell during a measured period of time.