BS EN 13203-3:2022 ✓ Most Recent

This document is applicable to solar supported gas-fired appliances producing domestic hot water. It applies to a system marketed as single unit or a fully specified system that:
— has a gas heat input not exceeding 70 kW;
— has a hot water storage tank capacity not ex
ceeding 500 l;
— is equipped with at least one solar collector; — is, with regard to the solar hydraulic circuit, considered as a forced circulation system (definition according to EN ISO 9488:1999).

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