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combi

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  1. A

    Baxi 424 combi tempreature not going above 57 degrees

    Hello everyone i have a Baxi 424 combi the system working fine but the maximum tempruter on the screen reach only 57 degrees for heater and 51 degrees for tap water this happened after a visit from (obviously) unqualified tecnichichan to fix a minor leak on the boiler, which initaly didn't efect...
  2. B

    PLEASE HELP Hot Water Combi Boiler Advice

    PLUMBING ADVICE NEEDED Combi boiler in our house, downstairs water seems to be piping hot. Upstairs basin, bath and shower only ever seems to be lukewarm - so much so that no one even wants to bath as it never gets hot enough! Open to suggestions as to what it might be and if anyone can...
    • bigdavecox90
    • Thread
    • boiler combi combi boiler hot water water
    • Replies: 7
    • Forum: Boilers
  3. J

    Draining vokera combi boiler 2 drainage valves on different radiators.

    Hi, I need to drain my vokera 29 boiler in the attic as Im going away for 4 weeks at least to make sure there are no frozen pipes. In my small 3rd floor flat, I have a radiator in the front room and one in the hall (very close to each other), there is a drainage valve on one of these. My back...
    • James Croft
    • Thread
    • boiler combi combi boiler radiators valves vokera
    • Replies: 1
    • Forum: Boilers
  4. R

    Combi boiler - Return temperature going up

    Hi, The outlet of all my radiators are at 55°C, but the boiler keep showing the Return Temperature is 60°C (and keep raising at 1°C/min rate) Also the flow temperature keeps going up above the set point and when it reaches +5°C above the set point, the boiler shuts down (even before the room...
    • Renato
    • Thread
    • boiler combi combi boiler return
    • Replies: 0
    • Forum: Boilers
  5. C

    combi boiler frost protection

    Hi I am somewhat confused. My daughter has a combi boiler bought 2-3 years ago and has it timed to come on in morning for an hour and at night for a few hours using "auto"? mode I had been brought up to leave boilers on manual and set the thermostat low at night to prevent pipes from...
    • colin_
    • Thread
    • boiler combi combi boiler
    • Replies: 2
    • Forum: Boilers
  6. M

    Hot water demand effect on central heating for Combi boiler

    Hello, We’ve recently moved into a fairly old, fairly big detached house (i.e. fairly draughty, but not too bad by any means) with a fairly new well maintained Worcester combi boiler. We weren’t convinced the heating was working right and then got hit with a £610 energy bill for the first 6...
    • MartinPod81
    • Thread
    • boiler central central heating combi combi boiler heating hot water water
    • Replies: 0
    • Forum: Boilers
  7. J

    Converting to a combi - advisable for mixrobore?

    Boiler broke over Xmas and needs replacing and I’m tempted to move away from our 1985 gravity fed system and get a combi as many other parts of that auger appear to be at the end of their life and need replacing. Our flow is 16l/min so not enough for unvented but we like the idea of a combi as...
  8. M

    Firebird Envirogreen Condensing Combi Oil Boiler spare part needed

    I have a "Firebird Envirogreen Condensing Combi Oil Boiler 26kW" a part has went and I can't find it anywhere, I was at every plumbers merchant near me but they all need to ring Firebird who are closed till next week. I wonder if anyone can help me find this part please? It's a pressure sensor...
    • monty66
    • Thread
    • boiler combi oil boiler part
    • Replies: 2
    • Forum: Boilers
  9. paulm05

    Grant combi oil boiler problems.

    My Grant combi oil boiler is giving me quite a headache at the moment. When I returned home last Friday I'd no heating or hot water. An engineer called the next day and diagnosed a faulty pressure switch. This was changed and everything seemed ok. However then the boiler began to lose pressure...
    • paulm05
    • Thread
    • boiler combi oil boiler
    • Replies: 3
    • Forum: Boilers
  10. mehmet

    Combi underfloor heating and external boiler connection?

    Hello, I have a gas boiler in my apartment that heats a net area of 300 m2 with an underfloor heating system. The boiler has a capacity of 45 kW. There's no issue with the heating system, but I want to increase the hot water capacity. I plan to connect an external 200-liter boiler. How can I...
    • mehmet
    • Thread
    • boiler combi connection heating underfloor underfloor heating
    • Replies: 3
    • Forum: Boilers
  11. H

    Pipework changes needed to replace a conventional boiler to a combi ?

    What pipework changes are needed to replace a conventional open vented gravity boiler to a combi boiler ? Would toilet flush/cisterns need replacing ?
    • hat
    • Thread
    • boiler combi pipework replace
    • Replies: 8
    • Forum: Boilers
  12. M

    Combi boiler hot water but no heating

    My first thought when I heard this fault a combi boiler with hot water but no heating. Was a problem with the stat, controls not making the call for heat. If this is not the case. Can the divertor valve be the cause of the issue?
    • Matt0029
    • Thread
    • boiler combi combi boiler heating hot water water
    • Replies: 0
    • Forum: Boilers
  13. M

    Vitodens 222-F combi storage boiler and loft shower pressure.

    I have a viessman vitodens 222F combi storage boiler on the ground floor. It has 100l capacity inbuilt cylinder which is delivered on mains pressure. I bought it hoping I could have two showers across floors running with hot water even if it’s a short while, while avoiding an unvented...
    • Max Hill
    • Thread
    • boiler combi pressure shower
    • Replies: 0
    • Forum: Boilers
  14. 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: Boilers
  15. P

    Drain down/flush options for combi return that goes up not down.

    Hi All This is following on from thread I made a few days ago but can't seem to find I'm in a bit of a bind with my CH design where I want to sort all of my rads and do some other bits including fitting a filter but I'm stumped on how to drain down due to how the system is put together...
  16. P

    alternate straight through CH return valve for combi

    I'm in a bit of a bind with a current CH install where I need to install a filter prior to a flush but no where to install My issue is the return on the combi (ideal 35) runs directly behind the boiler then up through the ceiling so I have no clearance to even attempt to snake it out to fit a...
  17. B

    Combi Boiler pressure refill?

    Hi, Just had a "Main Eco Compact" combi boiler installed as the Biasi one failed. It seems to work fine, gives a hot bath, i dont ever use the radiators or kitchen hot tap. (no point in upping the landlords gas bill for no reason) On day 4, the pressure is below 1. I filled it back up to >1, but...
    • boilerboy22
    • Thread
    • boiler combi combi boiler pressure
    • Replies: 2
    • Forum: Boilers
  18. C

    Using combi fed and gravity fed showers simultaneously

    Hi all, I have a combi boiler for hot water and heating but have 2 showers in the house. Obviously low water pressure if both showers are used at same time. I'm wondering if I could install a water tank to gravity feed one of the showers, with new electrric shower and if so how to stop the water...
  19. I

    Grant combi CHP not running

    Grant combi boiler, Light on CHP not on and no electrical supply to pump, programmer switch set to constant. DHW pump light on and running but programmer switch is off. Check one way valve on CHP seems to be free and working.
  20. J

    Ideal Logic Code Combi E38 not working

    Turned the system from hot water only, to hot water and central heating the other day. After it working briefly, it has now stopped all together. The display isnt showing a fault or anything - it is just blank. After reading the service guide that came with it - I am confident there is power...
    • James Middleton
    • Thread
    • combi ideal ideal logic logic
    • Replies: 0
    • Forum: Central Heating Forum
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