SEAWARD CWC-F1150W 230V Compact Water storage heater, 38 litre
Connections:  - 15mm (½") NPT threaded
Dimensions:  - 406mm wide, 558mm deep, 406mm high
Output:  - 22.5 litres (5 gallons)
Uses waste engine heat , Tough, lightweight aluminium pressure vessel 
White painted steel casing
Maximum Working Pressure - 5 bar (70 p.s.i.) , Rockwool thermal insulation
1.5kW electric immersion heater fitted as standard , All fittings at one end
Temperature-and-pressure relief valve (TPRV) fitted (opens at 5 bar/95ºC)
Tested to 20 bar (280 p.s.i.)