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Because it has air in it.

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15y ago

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Is it ok to put my oil central heating boiler outside?

No, it is not okay to put your oil central heating boiler outside. It should be in an enclosed area.


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Central heating service is an annual service that should be carried out by a boiler engineer. During this service they must check to make sure a boiler is running safe and cost-effectively.


Who makes a solid central heating boiler?

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When is central heating power flushing necessary?

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How do you get water in the boiler?

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