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  1. B

    Mains wired smoke / heat / CO detector question

    Hi Guys We're having work done to insert an open plan kitchen-diner and snug seating area plus wood burner into already existing extension. One load bearing wall is being knocked through. Electrician just bumped his quote up by £820 to cover replacing this consumer unit and moving it up the...
  2. T

    Air source heat pump heating issue

    Hi there, I have an air source heat pump with a few issues: 1. It gets stuck on defrost mode. When it goes to defrost, it gets stuck and ends up becoming an air conditioner in the depths of winter (fun). I suspect this may be a faulty valve (or what ever reverses the coolant) getting stuck on...
  3. FatAlan

    Smoke, Heat and Carbon Monoxide Alarms

    Looking for recommendations on domestic alarms as title. Any good brands that are out there that provide all three that can be wired in together. Also what’s the the difference between optical and ionisation and is one better/more effective than the other?
  4. U

    Heat resistant backing for ceramic bulb holder

    I have recently installed a ceramic bulb holder onto the ceiling of a virarium (a tank for a reptile). The bulb holder holds an infra red heat bulb to provide a basking area for the lizard. The bulb holder is screwed directly onto the ceiling of the vivarium which is made of chipboard. The...
  5. J

    Faulty Air source heat pump

    My NIBE F2015 air source heat pump which is only 7 years old has an apparent fan motor failure. The fan turns freely and the motor starter capacitor has been replaced but the unit will still not run. Any suggestions for a fix?
  6. N

    calculating the de-rating of a cable near a heat source

    Im Working on a new build site at the moment, and the kitchen layout has changed to include an island with a hob on it. Meaning im goin to have to get power to it. The underfloor heating pipes have been run in already and the floor has been screeded. Theres about 50mm before you get to the...
  7. P

    Nest Thermostat Heat Link Wireing advice

    Hi, So bought my self a Nest and plan to give a go at instaling it over the weekend. I whiped open my currently installed digital programer and have this. Can anyone work out or give any tips on how to install the heat link to my current wiring??? at first look it dosnt look like it will...
  8. haptism

    Insulation properties of heat shrink, and tape

    Have question thats been on my mind for a while. Does anyone know if; at 250 -500 v, a single layer of heat shrink, or a single layer of insulation tape for that matter, covering a bare conductor, sufficient insulation against ?? direct contact/a shock ? It seems a bit thin in comparison to to...
  9. T

    Heat Mat, Underlay and Laminate Flooring

    Hello everyone. I have had an electric heatmat installed into the subfloor according to the manufacturer's instructions. heatmat dot co dot uk I now need to fit underlay before putting down the laminate. In the mean time, we have had a flood in the kitchen and the insurance company have...
  10. R

    Heat shrink for underfloor heat mat

    Evening all, Just a technical question, I repaired a heat mat today with heat shrink that was supplied in the repair kit. It was very stiff compared to regular heat shrink. Am I right in thinking that it is stiffer to offer more cable protection but still has the same properties as regular...
  11. littlespark

    Bright light.... unbearable heat!

    .... at first I thought it was the sun.. but no... It was my birthday cake.
  12. Luke Killick

    Electric boiler taking too long to heat water

    Hi, I’ve just moved into a new flat with an Electrastream boiler, and when I first moved in it seemed to get to around 45 degrees in around 45 minutes. Now, (about two weeks later) I’m luck if it gets to 40 degrees in an hour. This seemed to happen after a new shower was fitted. Can anyone...
  13. P

    Wooden shed heat detector

    Hi, I have been asked advice on installing a smoke detector inside a small wooden shed at the bottom of a garden, which is currently used for spray tanning. I have said that a smoke detector will be of no use as the mist from the machine will constantly sound the alarm. I thought I could fit an...
  14. S

    Nest wiring help - not controlling boiler on/off unless hot water set to heat

    1st post and I’m not a heating engineer/electrician so apologies for lack of proper terminology. It’s a long story but in essence I had a new conventional boiler replace 2 years ago (Worcester Bosch 28i) and had issues with way heating engineer wired up the new rf thermostat. Decided to fit a...
  15. M

    Intermittent fault Gloworm Ultracom HXI Condensing Heat only Boiler

    I've seen others that have similar fault to this boiler. All functions work apart from the target temperature is not reached as of this week. The fault was evident for two 6 month heating 'seasons' but last year the fault rectified itself and the boiler temperature reached target temperature...
  16. A

    1990's smart heat economy 7 query

    Hi, I have a customer whose immersion has stopped working. The system has a receiver for each appliance with a dip switch to set individual times for the heaters to come on during the off peak times. The immersion is fine,the receiver has failed but she has a boost receiver that isn't used which...
  17. Mr.Smith

    HEAT TRACE - What should be used as means of disconnect?

    Currently overseas and inside a small pumphouse heat trace is required. Wondering if I need double pole RCD protection for it? Thanks in advance.
  18. E

    aico heat alarms on wall?

    having a bit of a debate as to why aico heat detectors should not be wall mounted, other than aico stating "do not wall mount" i cant think of a good reason why it would not operate if placed less than 12" from ceiling on the wall did a quick poogle search but no definitive answer i have seen...
  19. M

    Replacing Heating Controller With Nest Heat Link

    Hi, I'm installing a nest in a vicarage where we'll only be temporarily (3-6 years) so hoping to be able to take it with us when we go, and reinstall the original timer. I've had a look at the wiring to the heating controller, and it seems to my mind that this would be the most sensible place...
  20. Jacob S

    Heat Link wiring Nest Thermostat

    Hi all, New here so thanks for having me! I am changing my old RF thermostat (BRITISH GAS WR1 - a rebadged Drayton) to a Nest 3rd gen on Glowworm Flexicom. I've installed a nest before but this is to a different system.. looked at the wiring diagrams but none seem to match my current wiring...

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