Heat pump water heater. Testing and rating at part load conditions and calculation of seasonal coefficient of performance for space heating.
NORMA vydaná dňa 4.2.2021
Designation standards: BS ISO 21978:2021
Note: NEPLATNÁ
Publication date standards: 4.2.2021
The number of pages: 56
Approximate weight : 168 g (0.37 lbs)
Country: British technical standard
Kategória: Technické normy BS