Most indirect stainless steel cylinders can be used.
Heating / cylinder kit
Domestic hot water interconnection kit allows your Ray boiler to provide both heating and hot water.
circuit board & connectors:
motorized valve for above board:
Current controller
This kit allows your Ray boiler to operate on smaller electrical supplies than normal - it reduces boiler power consumption when a large load is caused elsewhere in your house/flat. For example, when you switch on the hob, kettle & washing machine etc. the boiler can reduce its power consumption automatically.
Single phase conversion kit
Converts boilers that are 12kW or less to single phase operation:
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