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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. buzzlightyear

    heat source pumps wiring

    any body point me to the right direction on heat pumps wiring ,or done any or pdf how the wiring done on them .
  3. Electrical2go

    Beat The Heat With Low Priced Fans and Air Con

  4. S

    Hispec heat alarm

    Hispec mains heat rf alarm in situ for 2 years no problems..started beeping intermittently changed battery still beeped..changed unit to 1 with lithium battery fine for 2 days then started beeping...meanwhile the original alarm on a shelf in a different room not beeped since ...any ideas?
  5. Alla Musica

    How far do downlight cans affect lamp life?

    Looking through the fire-rated downlights out there on the market, Integral Evofire claims its canless design would let the heat off and hence optimize lamp performance and life. On the other hand, the JCC Fireguard, albeit also rated for LEDs only, ironically, still comes with a matt black...
  6. T

    building a custom sublimation heat press

    Hi as per title I'm building a sublimation heat press. i have a 1000mm x 250mm x 8mm sheet of cast aluminium. i will be using a thermostatically controlled silicon heat mat to regulate the heat up to a maximum 200 degrees c/ 392 degrees f. i want to be able to reach my maximum heat in under 3...
  7. Dan

    Ground sourced heat pumps - how they work

    https://www.theguardian.com/technology/ng-interactive/2023/dec/23/heat-pumps-science-visualised?CMP=Share_AndroidApp_Other This guardian article explains it really well with awesome graphics. How many of you guys are into this?
  8. P

    Adding a heat sensor to an existing, interconnected smoke alarm system

    I currently have a home with 7 interconnected, hard-wired smoke detectors. I have a hard-wired heat alarm in the garage that I need to have interconnected to the rest of the system, per local regulations. My solar installer added the heat sensor but does not seem to know how to handle the...
  9. pirate

    Anyone watched the TV documentary tonight about Heat Pumps and electricity supplies in general?

    Seriously just wanting to have a discussion on this huge issue. Clearly, there are not enough competent installers of heat pumps, so we may see some scheme whereby one can get "qualified" in a short time. I have views on this, and I have views on everything the documentary covered, but my...
  10. CopiamElectrical

    Central heat courses?

    Central heating courses/ Smart Control Heating / S Plan / Y Plan / Wiring Centre. Best course provider. Currently looked at tradeskills4you which is a 2 day course.
  11. C

    Heat trace caught on fire

    Hello, I am in the process of conducting an investigation on a heat trace that was found on fire. The jacket around the wires could have been damaged from the installation of a regulator that was replaced prior, but I can not 100% confirm the damage since it burned in the process. The...
  12. F

    Heating system is via an air source heat pump.

    We have just completed a self build, and heating system is Air Source Heat Pump, unvented HW cylinder, Buffet Tank, all Vaillant equipment. The heating firm have ceased trading before the system has been completed and fully commissioned. Ground floor is UFH with 6 zones controlled by Heatmiser...
  13. S

    Heat Saver system what is it?

    Hi. I'm on my way to remove a faulty one of these. A 'heat saver' device fitted to a boiler. I haven't seen it yet but it seems to be a relay connected to a boiler thermostat. Has anyone seen these before? I'm guessing I can remove it all and just hard wire the system so it doesn't interfere...
  14. R

    Heat resistant cable connector

    I need to connect an infrared panel to the ceiling. The panel comes with a pre-wired 13amp plug, but it needs to connect to the supply left in the ceiling by my spark. Does anyone know of a quick release connector that is also heat resistant.
  15. D

    Electric boiler better than a heat pump?

    I need help with this. So I do
  16. K

    i have a FANTRONIX Aerium Midi Modern Heat Recovery Unit that i want to wire up.

    hi I have a Fantronix aerium midi modern heat recovery unit that i want to wire up. would you be able to run the cables from a fused switch that is a spur from a ring main. any advice appreciated all work i complete will be checked by a qualified electrician. thanks
  17. 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
  18. ferg

    Heat recovery fan options.

    I have absolutely zero experience with MVHR. The issue I have in my own home is as follows. Log fired burner in kitchen supplies hot water and heating via a thermal bank / store. Approx 2kw to the room and 9kw to the water. If we want the heating on then this is on, combined with all the...
  19. P

    New Zealand New heat pump install

    When a new heat pump is installed in an existing residential house. Does it have to be on a separate circuit with new mcb, according to recent regulations ASNZS 3000:2018. What about RCD as well.
  20. M

    Heat pumps: where to terminate motorised valves

    Hi, I’m just wondering has anyone on here any experience with a Mitsubishi Ecodan R32 model. I’ve completed all the wiring expect for terminating two motorised valves. I cannot find a manual stating what terminals they go into. Any help is really appreciated. Thanks

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