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Do-It-Yourself (DIY) Question & Answer Forum
Installing an unvented boiler.
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<blockquote data-quote="ProDave" data-source="post: 480131" data-attributes="member: 6969"><p>This is a direct, electric only cylinder. Each immersion heater takes 3KW or about 13 Amps. You would normally only use one at a time.</p><p></p><p>The electrical side is relatively trivial.</p><p></p><p>HOWEVER an unvented cylinder comes with a LOT of stringent plumbing requirements. Expansion vessel, over pressure and over temperature blow off valves, correctly piped discharge piping so if the vents do blow off they do so correctly and safely. They are only supposed to be installed by someone competent to do so. Do you meet that criteria? </p><p></p><p>You might also want to check with building control, you might just need building control approval to fit one on it's own.</p><p></p><p>Get the electrical side of it wrong, you might get a shock or start a fire. Get the plumbing side of it wrong and it becomes a bomb that could blow the end of yout house out.</p></blockquote><p></p>
[QUOTE="ProDave, post: 480131, member: 6969"] This is a direct, electric only cylinder. Each immersion heater takes 3KW or about 13 Amps. You would normally only use one at a time. The electrical side is relatively trivial. HOWEVER an unvented cylinder comes with a LOT of stringent plumbing requirements. Expansion vessel, over pressure and over temperature blow off valves, correctly piped discharge piping so if the vents do blow off they do so correctly and safely. They are only supposed to be installed by someone competent to do so. Do you meet that criteria? You might also want to check with building control, you might just need building control approval to fit one on it's own. Get the electrical side of it wrong, you might get a shock or start a fire. Get the plumbing side of it wrong and it becomes a bomb that could blow the end of yout house out. [/QUOTE]
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Installing an unvented boiler.
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