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Domestic Water Heating for a Village Hall

AncientMariner

With the summer being the quiet time in our village hall, it gives the opportunity to arrange for works to be carried out.

Currently, hot water for the kitchen's two sinks is from a 10/15 litre under sink water heater which struggles to give sufficient hot water for those sinks and takes 20/30 minutes to recover. A separate bar, has an over sink water heater, again of insufficient capacity.

What I am thinking of is an instantaneous water heater. There is a three-phase supply within 6 metres of a suitable location for an instantaneous water heater, this would have an advantage of only consuming energy when water is flowing, whereas a storage system would have energy wastage.

At home, our combi boiler (a Worcester Bosch Highflow 440CDI can supply 20 litres per minute and I can see that it is rated at 29.5 kW.

Google has found me a Stiebel Eltron DHB-E 27 and their similar models between 18 and 27 kW.

Has anyone any experience of Stiebel Elton's products or any other similar water heaters?

Many thanks.

Clive

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    Dated info, but there certainly were, a great many Steibel Eltron heaters, both instant and near instant (very small capacity) supplying the bathrooms and kitchens of German flats in west Berlin, and later refurbished eastern ones too. Certainly the older models seemed to be pretty much bomb proof, and many I saw in service were  20- 30 years old then  (early 2000s) and still working,

    If you have hard water that may not be the case but there is very little to say other than their old models work very well. Essentially those models were 3 resistors in a tank, a pressure drop flow switch and a bimetallic thermostat, I suspect that the 21st century will have added a blue LED and a microprocessor, which are probably the least reliable parts.

    Installation instruction suggest 40A MCB

    Mike

Reply
  • 0

    Dated info, but there certainly were, a great many Steibel Eltron heaters, both instant and near instant (very small capacity) supplying the bathrooms and kitchens of German flats in west Berlin, and later refurbished eastern ones too. Certainly the older models seemed to be pretty much bomb proof, and many I saw in service were  20- 30 years old then  (early 2000s) and still working,

    If you have hard water that may not be the case but there is very little to say other than their old models work very well. Essentially those models were 3 resistors in a tank, a pressure drop flow switch and a bimetallic thermostat, I suspect that the 21st century will have added a blue LED and a microprocessor, which are probably the least reliable parts.

    Installation instruction suggest 40A MCB

    Mike

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