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  1. N

    Heat pump and micro bore pipes

    Hi thank you for letting me join this forum . We have an air to water heat pump but the bungalow is piped in micro bore 10mm pipe which doesn’t look well piped , kinky in pipes in some places ,some of the rad don’t heat up too well , probably because of the badly piped system, the pipe is all...
  2. E

    Refurbished Stuart Turner shower pump question

    Are specialist refurbished Stuart Turner pumps reliable, or is it a bit of a gamble. Would it be best to buy new and pay twice as much.
  3. M

    Wood burning to heat pump

    My central heating is run off a heat pump ( air to water ) quite expensive to run , So I’m plainning to fit a wood burning with a back boiler to connect to the heating system, So while the wood burning on during winter months it will stop the heat pump for working hard Or not all all . My...
  4. SimonG

    Stuart Turner Pump Pulsing When Shower Off.

    Strange one. Stuart Turner Showermate, supplied by customer, fitted March last year. All was well until August when they contacted me to say there was an issue with it pulsing when the shower is off. I don't believe in coincidence, but at the same time as the issue arose they were having an...
  5. J

    Pump problems

    Hi there, I’m hoping someone can help me with this problem please. I’ve searched for similar posts but not found anything helpful! My mum’s house has a pump which pulses on and off every time a tap is opened. Even filling the bath (pressure is strong) the pump won’t come on and stay on but...
  6. C

    Grundfos Alpha Pump replacement

    Hello, my Mothers heating failed in the recent UK cold snap. I found the pump was stuck. I have a question about pump orientation. The existing pump flows downwards. The manual for the proposed replacement recommends that it should pump upwards. This would involve rearranging the flow &...
  7. D

    Setting up Grandfos Pump

    I had a new Grandfos UPS3 pump fitted today, and am trying to set it up. I want it on 2nd setting, but having problems. The green light is on setting 1 and there is a yellow light on setting 2. If I press the arrow the green light stays on 1 and I then have yellow lights on settings 2 and 3. If...
  8. Drak911

    Alpha 2 15-60-130 pump

    Hi we have a Alpha 2 15-60-130 central heating pump fitted. We need a bit more heat from 12 rads. I’m confused about the settings as the Auto Adapt was pulling 14w which is not enough. I have now set the right side led to position 4 and it pulls 25w. Does anyone know what the pump should run at...
  9. K

    Smart Pump Setting with gravity fed system

    Central Heating Pump - G Pump Force HE-RS25/6PWM-130 Hi, I would be grateful if someone could explain whether our CH system can cope with the AUTO (adaptive mode) setting on this the new pump or which mode it is best set at (recently had our old 3-speed pump replaced with the above smart...
  10. G

    Booster Pump Needs Reset Daily

    Hi, I am currently using a Grundfos Booster Pump. This pump is fed by 2pcs of 1,000 liters water tank. Normally the pump would stop working only when there is no water in the water tank. But, recently for the past week, in the middle of the night, the pump would stop working even though the...
  11. T

    h/w cylinder compatible with future heat pump system?

    Hi We urgently need to get our h/w cylinder replaced because it's leaking. Our current system is oil boiler feeding underfloor downstairs, radiators upstairs and an unvented hot water cylinder for hot water. We are thinking of moving to a heat pump at some point but aren't ready to do this. My...
  12. W

    Replacement Collector Circuit Pump

    Hi, I’m looking to find a replacement Collector circuit pump for a ground source heat pump. This is the pump on the brine circuit. The pump I have is no longer supported by the manufacture. It’s a Wilo TOP-S25/7.5 Any recommendations would be very welcome.
  13. L

    Why is the pump running 24x7

    My son has just had a new boiler fitted and hes noticed that the pump runs 24x7 even when both the heating and hot water are set to off. He’s also found that when the hot water is set to off on the programe timer, the boiler is still heating up water. I wonder if this is because the engineer...
  14. Z

    Vaillant System Boiler With Additional Pump

    Hi, i've got a job with a Vaillant Ecotec 630 system boiler, and i don't know the full history but the house has definitely been extended significantly since the boiler was installed. There's now 21 radiators/towel rails. It's getting to temperature, but even after balancing, it's not heating...
  15. G

    New UPS3 pump too powerful ?

    Hi, I have just had my central heating system "upgraded" for a four bed-roomed detached house. The heating company recommended going from the open vented system to sealed / pressurized system, new pump ( UPS3 Grundfos ) all new plastic pipework ( extending ) the 22mm feed and return pipes so no...
  16. A

    Salamander pump not working unless shower head is taken down

    Hey, here goes and I hope it works.. never used one of these before! I have a Sagittarius Ergo mixer shower min bar of pressure required 1 bar. Connect to this is a 1.5 bar Ora Salamander pump for a positive head, this was connected by a plumber of course and we’ve had it all rigged up...
  17. K

    Does combi boiler need an external pump or not?

    My conventional boiler needs to be replaced. One engineer suggested combi with an external pump because water pressure in my flat is low, the other said there's no need for a pump. He even said that if the pump would have a detrimental effect on the boiler. Who is right?
    • Krzysztof
    • Thread
    • boiler combi combi boiler pump
    • Replies: 5
    • Forum: Boiler Advice Forum
  18. av2597

    Water Circulator Pump Bust After Only 1 Year!

    Hi all, we have a water circulation pump to bring hot water from our woodburning stove and send it to a thermal accumulator tank. We've just started our second season and it's broken. I thought these were meant to last 10 - 15 years? We don't have a domestic water supply - we use water from our...
  19. P

    Unvented Cylinder Single coil heat pump vs twin coil solar

    Hi, I'm looking to purchase a 300L unvented indirect cylinder to work with a standard heat only boiler. I may have solar panels in the future, but likely the PV kind rather than the thermal kind, and won't be having heat pump in the future. So the cylinder would be connected to the boiler at...
  20. Zoe100

    Help Please, Salamander Accubust Water Pump

    Help pls, I’ve got a Salamander Accubust water main pump it has an in & out & third port for an accumulator can I blank off the accumulator port & use it as a mains water pump without an accumulator? TIA

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