heat pump

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  1. S

    Heat pump controls

    I’m trying to get my head around how the controls work on heat pump systems . Usually on a s plan combi boiler let’s just say 2 zones I’ve learned that power to spur from spur to Timeclock to stat calls for heat switch live from stat on to brown on the motorised valve micro switch closes...
  2. M

    UK Heat pump faults?

    Two call outs to new build burnt out heat pumps in a week.
  3. HappyHippyDad

    Smart switching for 3.5kW heat pump?

    My customer wants to be able to switch his heat pump (3.5kW) for his swimming pool on and off remotely, he also wants to be able to set times for it to switch on and off during the day. He wants to be able to do this remotely too (i.e. with his phone). In addition, he has a 380w pump he wants...
  4. D

    Electric boiler better than a heat pump?

    I need help with this. So I do
  5. D

    Heat Pump Tumble Dryer v De humidifier

    I am having a debate with my son-in-law. He has got a Samsung dv80ta020ae heat pump tumble dryer, I am using a 300w de-humidifier for drying clothes. He says his Samsung is cheaper to run. Im not so sure, is anyone capable to explain if he is correct. Hope I have got the correct forum! Many Thanks
  6. 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...
    • BobTheBuilder65
    • Thread
    • air source heat heat pump heating pump source underfloor underfloor heating
    • Replies: 5
    • Forum: DIY Electrical Advice
  7. C

    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...
    • CarolinaG
    • Thread
    • heat heat pump heating issue pump relay
    • Replies: 3
    • Forum: DIY Electrical Advice
  8. S

    Underfloor heating with air source heat pump

    Hi guys We are due to undertake a new build install where they are using air source. Its the first air source I have installed so need a bit of guidance from you professionals, not getting any help or wiring diagrams from the plumber so reliant on your knowledge. The heating system is full...
    • Sb8389
    • Thread
    • air source heat heat pump heating pump source underfloor underfloor heating
    • Replies: 3
    • Forum: UK Electrical Forum
  9. 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...
    • AussieP
    • Thread
    • heat heat pump new pool protection pump rcd
    • Replies: 11
    • Forum: UK Electrical Forum
  10. 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...
  11. T

    Battery 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))
  12. T

    5V out from heat pump control panel.

    Hi, I'm needing to run a raspberry pi computer board near my boiler. The Pi requires 5v at 2.5A. My heating system is from NIBE and the control panel a SMO 20. It does have a USB port on the front for software updates but this doesn't appear to have enough current to power the Pi properly. Sad...
    • TheMiddle36
    • Thread
    • control heat heat pump out panel pump
    • Replies: 14
    • Forum: DIY Electrical Advice
  13. K

    Heat pump install

    Hey, Just a question for a heat pump install. Heat pump unit is 60 amps. Backup in tank heater for hydronic heating is 24 kW. Just don't know if the 200 amp service will be enough for the heating load? Any advice on service calculation on this particular setup?
  14. T

    Wiring a 1KW pool heat pump

    Hello. I was hoping someone could please help me with some queries? I’ve just taken delivery of a single phase pool heat pump rated 1kw, with running amps of 4.5. Retailer has advised that it should be wired into a separate type C MCB with a min 10A fuse. I was hoping I could just put a...
  15. B

    Heat pump installers

    Hello After some reading recently, I was interested in installing Air Source Heat Pumps, as I think they are a great replacement for a gas boiler. From what i can see a GSHP is even more efficient but a bit more expensive and disruptive. After a bit of research I realised that you need to be...
    • barninks
    • Thread
    • central heating heat heat pump installers pump
    • Replies: 5
    • Forum: Central Heating Systems
  16. L

    Pool Heat Pump

    Hi all, Our electrician cancelled and the pool pump installer is coming Friday so I need to do it myself. Not a big deal, very simple, straight run, I just need advice. The pump requires 40A, single phase, 50A recommended and 60A Max. We have two 150A panels 60 feet down the same wall so I'd...
    • late night
    • Thread
    • heat heat pump pool pump screwfix
    • Replies: 6
    • Forum: UK Electrical Forum
  17. S

    electrical consumption of an air source heat pump, Ontario Canada

    Hi - No idea if I am writing in the right place. Please, I cannot get a straight answer when the temperature is 0- -20 Celsius - where can I find a chart of what normal KWhr consumption is? I think mine is using far too much electricity thanks
    • shira l
    • Thread
    • air source canada consumption electrical heat heat pump not uk pump source
    • Replies: 5
    • Forum: UK Electrical Forum
  18. L

    Heat pump diversity calculation question

    Hi, When calculating diversity. Does external air conditioning equipment such as heat pumps fall under heating and power in the osg such that you take 100% of the highest then 75% of the remainder? Thanks
  19. 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...
    • Themorganator4
    • Thread
    • air source green heat heat pump heating issue pump source
    • Replies: 128
    • Forum: Central Heating Systems
  20. 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?

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