Thermal performance of domestic gas appliances-Specification for thermal performance of combined appliances: fanned-circulation ducted-air heater/circulator
家用燃气器具的热性能
Thermal efficiency requirements and associated methods of test for appliances of rated heat input not exceeding 60 kW combined with a circulator of rated heat input not exceeding 8 kW and burning 1st, 2nd and 3rd family gases.Cross References:BS 1179BS 1179:Part 6BS 4947BS 5258:Part 9BS 6332:Part 1BS 6332:Part 5