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  1. I

    are there any open learning courses on heating/the physicsof

    I really want to gain a deep understanding of this field but having completed apprentiship in electrical engineering with the Royal Navy and then gone on to gain a proffesional qualification in the same via night school for 3 years when i left I wouldnt be able to complete another apprentiship...
  2. I

    guidance appreciated on general sytem operation

    I recently went to a job on a newly installed combi boiler. Problems where that the boiler had lost a large amount of its pressure. The first thing i did was to check the pressure in the expansion vessel When bleeding the upstairs rads there was a strong smell . I lit the "product"...
  3. I

    dont bother with this one deleted

    gonna redo
  4. I

    descaling a vokera 80 excell 80 sp plate heat exchanger

    Hi, I have a friend that has the above boiler. The problem arises when hot water is used. Hot water gets hot then goes cold. Called round and was asked to look at it. Diverter valve isnt divirting to rads (i isolated the flow and return) which made no difference to the hot water temp...
  5. I

    leaving heating on 24/7 or timed...which is most economical

    Does anybody have any idea on the savings when using a timer as opposed to leaving the system on 24/7. I remember someone telling me that its cheaper to run a house with the heating on 24/7. I guess there is some sense in this theory...ie your hot water is already hot as is your home so they...
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