4. Pipe Insulation
All exposed pipes to and from the hot water cylinders and heating systems shall be insulated with pipe insulation material with an R-value in accordance with Table.
Piping to be insulated includes all flow and return piping, cold water supply piping within 1 m of the connection to the heating or cooling system and pressure relief piping within 1 m of the connection to the heating or cooling system.
|Minimum R-value of pipe insulation|
|Internal diameter of pipe||Minimum R-value|