specialist in hot water systems
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Electric Only

Electric immersion heaters are widely used for both traditional vented cylinders as well as newer unvented cylinders.

It is quite common for unvented hot water systems to be heated with electric immersion heaters only. These are known as Direct cylinders and are commonly installed in flats wih Economy 7 or Economy 10 heating.
Where economy tariffs are available, we recommend installing dual immersion heaters; one for the economy tariff and the other as an adhoc booster for periods when additional hot water is required.

The performance of the unvented hot water system relies primarily on the system design and mains cold water supply. The immersion heater provides the heat source as it would in a traditional vented hot water system.

Electric only cylinders (or Direct Cylinders) deliver all the benefits of unvented hot water systems; high performance mains pressure water to all hot and cold outlets, including baths and showers, all without the need for pumps.

 

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