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  1. Pretty Mouth

    Heat alarm needed in kitchen?

    Bungalow, existing property, owner occupied. Front door opens into hallway. Kitchen is separated from the hallway by a door. Kitchen also has a external door leading to garden. If installing to minimum building regs requirements (Grade D2 Category LD3), does the kitchen need a heat alarm...
  2. W

    CT8775C Thermostat three wire heat only (jumper intact)

    Which terminal is used for ground to verify power supply? Thank you
  3. B

    1950s underfloor heating brought into reuse with air source heat pump

    My mother moved into her three bed home in 1960 and it had underfloor heating in the living room. I remember we used it when I was growing up in the 70s but it hasn't been used for probably 30 years. Electric storage heaters were installed to take advantage of the old off-peak electric tariff...
  4. P

    Wire size for 15kW heat pump electric backup element

    In a few days our local HVAC company will replace our propane furnace with a Mitsubishi heat pump (PUZ-HA42NKA1) and ducted air handler ((PVA-A42AA7) with a 15kW backup electric unit (EH15-MPAS-LB). Submittals and installation instructions can be found on mylinkdrive.com. I'm doing the...
  5. Pegasus

    Smoke / Heat Alarms, Seeking Recommendations

    I am an electrical labourer currently doing my own research on Alarms to self-educate as much as I can. I would like to state the general rules I have learnt so far and would like to know if there's anything else I should be aware, Smoke Alarms, 2 types - Ionisation and Optical (Optical is...
  6. banny07

    UK Heat Alarm in the Kitchen

    Hi guys. I am wiring a kitchen extension and planning to install seprate CU for this. I have two questions if you guys help me finding answers. 1) do I need to install spd for this cu . existing cu doesn't have any. 2)There is no smoke alarm in the property and the owner is not interested to...
  7. CarolinaG

    Heat Pump Heating issue with relay sticking

    I had a electrician look and apparently the relay is stuck so the pump keeps running even when not calling for hot water. We already replaced the Honeywell timer and that made no difference prior to calling electrician so its definitely a stuck relay. He said he couldnt get a replacement relay...
  8. jonperry64

    Are metal clad sockets more heat resistant than plastic ones?

    As per title really. I need to install a storage heater which is quite close to a 13amp socket. The socket would be about 5cm from very bottom of heater. I don't think much heat is emitted from that part of the heater, but as a precaution, would there be any advantage in changing the socket to a...
  9. C

    Nest 3 learning won't blow heat unless the blue wire is connected to C

    We're new to this house and the old nest 3 stopped charging so they sent us a new one. Hubby didn't take photos of the old wiring since, as he put it, it's color coded. When the white and red are touched heat blows. The others, yellow and green, seem to do their jobs as well. There is a blue...
  10. A

    RCD protection for new pool heat pump

    Hi there all I have a quick question. My garden supply CU has a 100A AC RCD as main switch - off that is my greenhouse supply circuit. Then a 63A AC RCD which protects 7 circuits, one of which is a pool heater. I am replacing the old heater and the new one requires residual DC protection...
  11. S

    Soldering Heat Gun Station - Recommendations (UK)

    Hi All, I'm looking to purchase a soldering heat gun/station to help with the removal of a surface mounted chip soldering to a motherboard. I'm struggling to find any recommendations/reviews online (UK based), just wondering if anyone out there has had any experience buying a decent one from...
  12. Vortigern

    I always thought heat pumps were expensive waste of time

    We have just done a new build and put in a heat pump. 6kw supply. Insulation galore. I don't think it's gonna work.
  13. littlespark

    Air Source Heat Pumps... Questions!

    Listening to the radio the other day, and UK govt has announce no new gas boilers to be sold by 2035 and everyone should go with ASHP... £5k grant to get one..Let me add... only england and wales. We'll stick with peat up here for now. The following questions. Probably easy to answer, but just...
  14. S

    Air Source Heat Pump

    Wiring a new extension and the clients are having Air Source Heating in their house, I'm waiting to see what supply is required for it from the supplier (clients are finding out for me, guessing at 32A) but have seen people suggest using a Type C RCBO (they are already having a new board, full...
  15. T

    How do you pair a storage battery/solar and an Air Source Heat Pump?

    Hi, How do you control a storage battery when it is in a house that also has an Air Source Heat Pump? (also solar panels on the roof))
  16. B

    Heat Sensors and Micro Switches

    Hello, I have a Kitchen Exhaust Hood that an "electrician" tried to wire and has a disaster. Basically, I have 2 motors, 2 on/ off switches, 2 micro switches, and 1 heat sensor. When the heat sensor is activated, motor 1 needs to turn on regardless if the switch is turned on or off. When...
  17. HappyHippyDad

    Cooker hood with heat exchange?

    The customer has asked for a cooker hood with some kind of heat exchange. I'm not entirely sure what he wants, but I'm guessing it's a cooker hood which reuses the hot air, i.e an MVHR. This is the only one I can find though and it's ridiculously expensive Lo-Carbon Sentinel Kinetic Cooker Hood...
  18. Gavin John Hyde

    New DNO notification form for EV and Heat Pumps etc

    There is a new form on the horizon for EV charge points. Some interesting criteria now apply, If you are not sure what the fuse is then you must submit the form in advance of install regardless of max demand. At present if the MD is <60 amps you can notify once installed. Most of mine are done...
  19. James

    Heat recovery fan

    Anyone have experience with heat recovery bathroom fans? I want one for home, old House with no cavity walls, bathroom moisture condenses on wall and causes mould. I do the normal, leave doors and window open but it is not enough. if anyone can recommend a good one then it would be greatly...
  20. P

    planning to instal solar thermal for solar heat air

    I am planning to instal solar thermal for solar heat air. Do not know which service provider is best? Can anyone look into this website and give suggestions regarding whether I can use their service or not. Home - Clean Energy Ireland- Renewable Energy Solutions | Solar PV Panels | Ventilation |...

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