Water Heating

Hot Water Storage Cylinder Heated by Space Heating Boiler

Ensure that the cylinder insulation and pipe insulation is not disturbed or damaged. Incomplete insulation increases heat loss and costs money.

Hot Water Storage Cylinder Heated by Electric Immersion Heater

Ensure that the cylinder insulation and pipe insulation is not disturbed or damaged. Incomplete insulation increases heat loss and costs money. Unless you expect a low level of hot water use, consider using electricity supplied at a cheaper night-time rate. Checking your tariff with your electricity supplier could save you money.

Hot Water Storage Cylinder Heated by Space Heating Boiler and Electric Immersion Heater

Ensure that the cylinder insulation and pipe insulation is not disturbed or damaged. Incomplete insulation increases heat loss and costs money. Generally, if you have a modern high efficiency boiler (rated 'D' or better on the HARP database (www.sei.ie/ber)) linked to a hot water tank thermostat, then it will be better to use the boiler to provide hot water year round rather than using the electric immersion heater.

Hot Water Storage Cylinder Thermostat

This thermostat allows you to set the temperature at which hot water is stored in your cylinder. The lower the storage temperature the less the heat loss from your cylinder. However, you should not set the storage temperature below 60°C to avoid risk of legionnaires disease.

Solar Water Heaters

Your solar water heater converts solar radiation into heat to produce hot water. Units that are subject to exterior fouling or scaling should be cleaned periodically. A marked increase in pressure drop and/or reduction in performance can indicate that cleaning is required. Ensure that you have clear instructions from the supplier in the event that the solar water supply water is turned off or if there is danger of freezing.

Automatic Timer Switch or Programmer (Hot Water)

Your automatic timer switch or programmer allows you to schedule the heating duty on the hot water system and to turn the system on and off as required. Use this facility to limit the running time for the hot water system to fit your specific needs and you will save money.

Check out our newly released BER Estimator.