T/CNHA 1053-2023 Domestic gas-fired quick water heater with special requirements for preheating function
T/CNHA 1053-2023 Domestic gas-fired quick water heater with special requirements for preheating function
Basic Information
Scope
Scope: This standard specifies the terms and definitions, requirements, test methods, and other performance and structural requirements for household gas instantaneous water heaters with preheating function. This standard applies to household gas instantaneous water heaters with a heat load of not more than 70 kW and preheating function (hereinafter referred to as "water heaters"). Main technical content: This standard specifies the terms and definitions, requirements, test methods, and other performance and structural requirements for household gas instantaneous water heaters with preheating function. This standard applies to household gas instantaneous water heaters with a heat load of not more than 70 kW and preheating function (hereinafter referred to as "water heaters").