WebDuring the last twenty years, the use of gas fired combination boilers (commonly referred to as 'combis') for central heating has significantly increased in the United Kingdom, from around 12% in ... WebOct 30, 2024 · Output of boiler in kW during the hour. I have a large HW tank and a large boiler. If water in tank was cold, in an hour I could use much more than 13kWh. 1. Capacity of HW tank. 2. Temperature of water in tank before you start boiler. 3. Temperature you want to reach - set by thermostat.
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Water Boilers, Commercial Hot Water Boilers, Catering Urns & Boilers …
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