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Guide describing gas-fired boilers and hot water heat distribution systems used for home heating.

Guide describing how to install energy efficient refrigerators in new and exisitng homes.

Guide describing categories of direct-vent combustion space- and water-heating equipment and combustion safety testing.

Guide describing ways builders can block off entry points and otherwise make homes inhospitable to all manner of pests.

Guide describing how to use a blower door test to determine building envelope air leakage.

Guide describing how to install low-e interior storm windows.

Guide describing the installation of a tankless hot water heater to provide domestic hot water that is heated on demand without the standby losses associated with tank storage water heaters.

Guide describing how to install low-e exterior storm windows.