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  • Hot water temperature from combi boiler

    What's the ideal temperature to set the water to on my combi boiler? I think mine is too hot but I don't want to turn it down too low.

    Asked by jonathan on 3rd Feb 2023
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    Feed and expansion tank

    What is a feed and expansion tank?

    Asked by Sarath on 25th Sep 2022
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    When can I switch on underfloor heating after screeding?

    I’ve had a new screed laid over underfloor heating. How long should I wait before turning the system on?

    Asked by Elly on 24th Oct 2025
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    Oil boiler efficiency

    How efficient is the average oil boiler?

    Asked by Kamil on 2nd Sep 2022
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    Switching boiler to hot water only

    Is there any harm in switching a boiler to hot water only when you're not using your heating? Will this save energy?

    Asked by Mo on 13th Feb 2023
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    Boilers and carbon monoxide detectors

    How far from a boiler should you site a carbon monoxide detector?

    Asked by Abdul on 14th Feb 2023
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    Boiler types

    For gas boilers, there's the option of a combi, regular, and system design. Do such options exist for boilers fueled by oil, LGP, or electricity? Or are there other design variations for these boiler types? Just curious.

    Asked by Patrick on 23rd Sep 2022
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    How do I remove rust from a painted radiator

    What’s the best way to remove the rust from my radiator and repaint it properly

    Asked by Nan on 27th Oct 2025
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    Do I need a water tank

    Do you need a water tank in the loft with a combi boiler?

    Asked by Luke on 19th Aug 2025
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    Why is one radiator not heating up?

    All my other radiators work fine, but one stays cold even when the heating is on. What could be causing this?

    Asked by Pete on 26th Oct 2025
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