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The indirect system prevents furring of the boiler, primary flow and return pipes, and hot water storage cylinder. The system is also employed in soft water districts when heating is combined with hot water supply, to prevent rusting of the cast iron radiators, which causes discolouration of the water to be drawn off.
1.1.00 The ‘HWA Design Guide for Stored Hot Water Solutions in Heat Networks 2018’ provides design guidance and advice for engineers who are looking to specify stored hot water solutions working within a heat network.
Centralised hot water systems • Indirect system with a primatic cylinder • Three air locks to prevent mixing of the primary and secondary waters • Save cost for expansion and feed tank, primary cold feed and primary vent pipe • Limited in use to small installations 56
These systems are suitable for single-application domestic hot water supply and are appropriate in areas that do not freeze for long periods and do not have hard or acidic water. They are simple to design and operate and the least expensive to install among all active systems.
The indirect system prevents furring of the boiler, primary flow and return pipes, and hot water storage cylinder. Download to read the full chapter text Chapter PDF
31 gru 2015 · This paper introduces an indicator to assess energy savings of direct water supply (without head tanks) with regard to the traditional indirect one (throughout head tanks). Furthermore a case...
requirements, including hot water supply provision, system design, safety considerations, and installer accreditation. The page aims to guide readers through the essential information needed to ensure compliance and safe operation of unvented hot water storage systems.
