Technical Booklet P Sanitary Appliances Unvented Hot Water Storage and Scalding·Page 12·2.5
Scope: systems up to 500 litres and 45 kW
This section applies to unvented hot water storage systems with a storage vessel capacity not exceeding 500 litres and power input not exceeding 45 kW, whether heated directly or indirectly.
The guidance under this heading contains provisions for an unvented hot water storage system, whether heated directly or indirectly, having a storage vessel which has a capacity of not more than 500 litres and a power input of not more than 45 kW.
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