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    weather compensation suitable?

    Designing system for building that is only used two evenings a week (3 hours each evening) and one day of 8 hours. Temperature set at 21deg with setback of 12 deg out of hours. normally would be recommending weather compensation. But with such little use, wonder if more economical to have...
  2. G

    customer wants boiler in unheated storeroom

    unheated storeroom, with louvre doors open to outside due to ventilation system installed in same room warned them about risk of freezing - boiler will only be used a couple of days a week. i know it will have a frost-stat, but that would not protect if there was a power failure, RCD trip etc...
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    Scotland, plastic pipe?

    Scotland i have been told that plastic pipe is not permitted for runs through ceiling, with drops to radiators? does it have to be copper? i am based in England, but working on design for project in Scotland. Thanks.
  4. G

    studio flat heating and hot water

    asked to specify for very small studio flat, architect has drawn a combi boiler, 2 radiators, heated towel rail and shower, basin, kitchen sink, washing machine. seems overkill to me, in the past i have used electric shower, 15l 3kw Ariston for hot water, and electric panel heaters, but he is...
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    Labels for shower controls

    Can anyone suggest where to get labels for a shower? Original ones worn of, and embarrassing for guests not to know what controls body jets, rain head, hand set, hot, cold, and flow. Shrieks when they get the wrong one! Ideally a clear or silver grey label with a symbol on them that can be...
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    two pumps, two zone valves, from low loss header, without relays?

    Hi, have looked over design given me for controlling this system. 49kw boiler with its own pump to low loss header. then two heating circuits, each with its own programmer, thermostat, pump and 2-port zone valve. Design shows programmer and thermostat providing switched live for pump and zone...

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