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combi

  1. M

    Best with combi or system boiler?

    I’m after some advice. We are replacing our 21 year old Ideal Classic boiler and have been looking at the pros and cons of combi vs system boilers. House is a 3 bed detached, 9 radiators, 1 bath tub, 1 shower. Boiler is currently on an external wall and we will be looking to move it into the...
  2. M

    Opinions Re: Worcester Bosch Greenstar 30i Combi

    Hi, would welcome some advice/opinions please. I currently have a Remeha Avanta plus 28c (combi) which is 11 years old, still working in a fashion but beyond economic repair. I have the opportunity to have a Worcester Bosch Greenstar 30i (Combi) installed using the boiler grant scheme...
  3. W

    Vokera Combi boiler replacement

    My 30 year old good servant a Combi Vokera Flowmatic 20-80 RS has finally given up RIP. Think Vokera don't make them like they used to so not necessarily like for like replacement. Ground floor flat with 5 large radiators and 2 small radiators. As this Combi has served me well I assume it was...
  4. A

    Combi Boiler heats radiators when hot water only is selected.

    My combi boiler has started heating the radiators when I select hot water only. Any ideas ? The system has been in for maybe 10 years.
  5. J

    combi to system conversion

    WB 12/14 Heatslave can't cope with two showers so fitted an unvented HWC on S plan, but need to shut off hot water section of combi. Boiler engineer has visited and was going to do the work, but he does not respond now, not upset him that I am aware of. Can anyone advise on the process, is the...
  6. J

    Can a combi in a cellar supply a radiator in the loft?

    If you have a Vaillant ecotec 28 in the cellar - supplying 7 radiators - 3 on ground and 4 in first floor - could that also supply a radiator in the attic?
  7. T

    Advice please about fitting mixer shower from Worcester Bosch 25/ 32 heatslave oil combi

    Hello everyone. Looking for comments/advice please about my wife's latest request... Which is to remove the existing bath from an upstairs bathroom (apparently we don't like it anymore!) and replace it with a shower. The hot water is from an external oil combi also feeding a second bathroom...
  8. C

    Promax Combi HE Plus

    Hi My Pressure Gauge is giving me grief it’s rising on its own goes down to 0.8 and then rises to 1.4 bar where it currently is the heating is not currently being used and no hot water has been used for a few hours. Does the gauge need re placing.
  9. S

    New combi fitted, how to fix noisy pipes

    changed from a gravity feed boiler system to a combi boiler and had problems with noisy pipes? About 4 weeks ago now had a new combi boiler installed, and from day 1 had noises from the heating pipes even though not on. Thought I was just up grading to a more modern space saving cost efficient...
  10. A

    Combi boiler making a whooshing noise

    Hello, Today a technician came round to check a radiator that wasn't working and turned off all the radiators which fixed the issue. Now the combi boiler is making a continuous noise that seems to be coming from the pipes underneath it. I've turned the boiler off and it's still making the...
  11. gcleve

    Set Worcester combi boiler to circulate without heat.

    Hi there - I have a Worcester Greenstar 25Si combi boiler running our heating rads. I've recently added a small tank with a heating element powerd by solar into the rads circuit. It's producing good heat, but I need a circulation pump to be on to move the heat around the system. Ideally I'd like...
  12. R

    New build heating engineer needs pointing in the right direction.

    Hi, I have a vaillant ecotec plus boiler (pre 2012 model) that is giving me hot water issues. It points towards a hot water heat exchanger issue or diverter valve, but I have replaced the diverter valve (old one seemed to still operate as it should as well) so it would seem that wasn't the issue...
  13. P

    Combi boiler issue or Shower?

    Hi Yesterday my shower in the bathroom started to run cold. It started fine but then ran cold...then got warm again before running cold again. This continued and then just ran cold. Other taps ran hot as usual so thought it could be the shower/cartridge. Instead of fiddling with manufacturers...
  14. G

    Warm flow combi boiler /No hot water

    Need help please... My Warmflow oil fired combi boiler will not supply hot water to my domestic taps but the central heating works fine. This is a dual pump system. I have linked out the connections on the boiler stat which causes the hot water pump and system to work and able to get very hot...
  15. S

    URGENT Ideal logic losing water!

    Ideal Combi bolier. When I repressurise the system to 1bar it almost immediately dumps the water out the condensate pipe before even switching in on at mains. HELP!
  16. K

    URGENT Worcester Heatslave 15/19 Oil Combi Boiler Pressure

    My boiler pressure gauge is at zero so the boiler is not firing up. I thought I heard a small water leak in the wall near the boiler the other night, just before this happened, but the leak has now stopped. I have been reading other posts to try to find a solution and I've hunted everywhere...
  17. U

    Installers with experience of Hybrid Solar Thermal / ASHP and Combi Boiler in Sussex Area

    Hi, I'm looking for someone to help specify, and possible install hybrid system. Initially the bungalow was setup for all low temp (underfloor heating and Fan assist heating rads), but couldn't afford ASHP at the time, so fitted a Vaillant Ecotec Plus 937 Combi as the heat source. Now looking to...
  18. F

    Ideal Combi hot water but noi heating

    Hi all. Daughter's boiler again thanks for help last year. New problem - hot water works fine, but when calls for heat boiler starts and runs for a few seconds then stops. No error messages. My thought is that pump is inop, so boiler starts up but then switches off when the small amount of...
  19. G

    Boiler replacement - Regular (with Boilermate) vs. Combi

    Hi everyone, I've just moved to a 4 bed detached house (2 bathrooms) built in 2005, in Bromsgrove (B60), with the original 15 year old set up of a Glowworm Micron 60FF regular boiler coupled to a Boilermate 2000 storage unit. The boiler itself is not very efficient and I'm just waiting for the...
  20. A

    Logic 35 combi whistling !

    Hi all, my logic combi 35 boiler is whistling when the hot water is being used, including tap / shower / central heating. It’s becoming very annoying now, is there an easy fix for this ? Do I need to let some pressure escape? I do have boiler cover but would prefer to avoid the £60 call out...

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