ČSN EN 13203-1
Spotřebiče na plynná paliva k přípravě teplé užitkové vody pro domácnost - Část 1: Hodnocení dodávky teplé vody

ČSN EN 13203-1

This document is applicable to gas-fired appliances producing domestic hot water. It applies to both instantaneous and storage appliances; water-heaters and combination boilers that have:
- heat input not exceeding 70 kW; and
- hot water storage capacity (if any) not exceeding 500 l.
A combination boiler can be fitted with a storage tank or not. The domestic hot water production can be integrated or coupled. The product is considered as a single appliance.
This document specifies in qualitative and quantitative terms the performance in delivery of domestic hot water for a selected variety of uses. It also gives a system for presenting the information to the user.