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    Heat Exchanger leaking

    Hi, My combi has been loosing pressure. The Engineer filled the system to 2.5 bar and then isolated the boiler from the rest of the system. He connected the condensation outlet to a rubber tube and fed it into a bucket. Over 5 hours the boiler lost pressure and water appeared in the bucket...
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    Changing PIR on house alarm - how to do it

    Hi, I want to change existing PIR's with ones that are not set off by the family cat. I know there are tamper circuits included in my system. Can I set the Alarm to not go off when I disconnect the current PIR's from the control panel or do I have to turn off the power supply, open the alarm...
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    Optimum condensing temperature?

    How do you persuade a condensing boiler to condense. I read a 'ravenheat' document suggesting an output temperature of 60-65 degrees is most efficient. Other articles I have read say they only condense when warming up and become less efficient when ticking over. Is there an optimum...
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    Sealed system losing pressure - how to locate leak.

    Hi, I have a sealed central heating system that loses pressure. I have to top up every 2 weeks. Is this excessive? Last year I had a bad leak and the engineer put a leak sealant in the system that didn't work. I eventually found the leak and it was fixed. Now the pressure is lost much more...
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