Technical Booklet F2 Conservation of Fuel and Power in Buildings Other Than Dwellings·Page 9
Definitions - Pipes, Ducts and Vessels
Defines pipes, ducts and vessels in space heating or cooling systems that carry heated or chilled liquid or gas, including associated fittings.
"Pipes, ducts and vessels" means any pipe, any duct and any vessel in a space heating or space cooling system that is intended to carry a heated or chilled liquid or gas and includes any associated fittings;
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