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A mechanical device that pressurizes a gas in order to turn it into a liquid, thereby allowing heat to be […]

The part of a boiler, furnace, or woodstove where the burn occurs; normally lined with firebrick or molded or sprayed

The ductwork installed to bring fresh, outside air to the furnace and/or hot water heater. Normally two separate supplies of

Combination doors or windows used over regular openings. They provide winter insulation and summer protection and often have self-storing or

Optimum fire rating issued by Underwriters Laboratories on roofing. The building codes in some areas require this type of roofing

A device which looks like a switch and is usually located inside the electrical breaker panel or circuit breaker box.

The path of electrical flow from a power source through an outlet and back to ground.

A manufactured wood panel made out of 1 2 wood chips and glue. Often used as a substitute for plywood

To install fiberglass insulation around all exterior door and window frames, wall corners, and small gaps in the exterior wall.