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combi

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  1. K

    Question regarding flexibility of a Combi boiler

    hi all, Forgive me if this is a stupid question, but within the usual scenario of a combi boiler in a house configured to provide central heating and hot water for bath/kitchen is it possible to shut down the central heating but continue providing hot water to services? Many thanks. P
    • kristeva
    • Thread
    • boiler combi combi boiler
    • Replies: 5
    • Forum: Boilers
  2. D

    Parallel System wood burning stove and Combi boiler

    I'm looking for a heating engineers/old school plumber to put in a Combi boiler (possibly Intergas) replacing very old open vent system in parallel with a wood burning stove with a back boiler (ESSE Bakeheart) as back up and alternative. I know this relies on two radiator systems. Combi for...
    • David F
    • Thread
    • boiler combi combi boiler system
    • Replies: 2
    • Forum: Boilers
  3. S

    Daily pressure / top up. Combi Logic. help

    I wonder if anyone has any thoughts? Combi Logic 30 Boiler - constant pressure loss - no obvious leaking. Few years ago we got an error code indicating pressure was below minimum. We resolved ourselves by using the manual and topping up per the guide. Sometime later, in some really cold...
    • SteveRPX1010
    • Thread
    • combi logic pressure
    • Replies: 3
    • Forum: UK Plumbers Forums
  4. E

    Vitodens 200-W Combi WB2B Steppermotor does not move

    Hi, My combi-boiler has just given up heating the house and basically only delivers hot water. While in central heating mode it heats up and stops to prevent overheating of the internal section of system. No fault or error code are displayed. Suspicion: 3-way changeover valve assy. So I...
  5. I

    Baxi combi boiler water pump valve leak

    Recently the central heating pressure kept dropping in my baxi combi boiler, I topped it up yesterday evening and this morning in needed topping up again. I noticed a small leak from what appears to be a valve on top of the water pump. Looks like it's a screw and maybe if I tighten it it will...
    • imMike
    • Thread
    • baxi boiler combi combi boiler leak pump valve water
    • Replies: 1
    • Forum: Boilers
  6. Renier

    Do Combi Boilers only provide hot water at 100% Open Tap?

    Recently had boiler issues heat exchanger was replaced but water would still go Cold Randomly especially in the shower. Engineer says Combi boilers can only provide hot water if the turbine is spinning at max speed so you have to open the tap at 100% to get hot water. So he removed(broke) the...
    • Renier
    • Thread
    • boilers combi hot water water
    • Replies: 11
    • Forum: Boilers
  7. P

    Can I install a stove back boiler with a combi gas boiler?

    Hi all, I have a Logic Combi 30 gas boiler installed in my house. The wife and I would like to install a multi fuel stove with a back burner to give us another option for central heating and hot water (especially with the current price of gas). With the pressurised system, is it possible to do...
    • Parky5
    • Thread
    • back boiler boiler combi gas engineer install
    • Replies: 4
    • Forum: Boilers
  8. Y

    Combi Boiler Internal Timer Replacement With Hive

    My son has just got his first flat and want to install "Hive" heating control. I've done this a couple of time with an external controllers but the fact the wirings all internal has made me wary of doing it my self. I want to know if I should take wiring from the back of the mechanical timer...
  9. N

    Main combi 24 HE, heating starts and stops

    Hi All, Hope someone can help with this one too. Main combi 24 HE, heating fires up as normal then stops after about 30 seconds. Any thoughts? Hot water works fine.
  10. A

    Vaillant Ecotec Plus Combi & UFH Control - V Smart Possible?

    Hi All Looking at having controls replaced / upgraded for a Vaillant Ecotect plus combi boiler. Currently have x2 zone valves on the heating (x1 for rads via a Honeywell wireless stat, and x1 for UFH circuits via Heatmiser stats - both wired to a Heatmiser wiring centre) I'm interested in...
  11. M

    Help: Choosing the Best Combi Boiler for a Shower

    I'm considering changing our current Conventional/Regular Gas boiler, to a Combi. The main reason for doing this, is so that I can run a more effiecent shower. eg: With a better temparture control, combined with a better flow rate. But in order to get a combi with a good hotwater...
    • macrefurbs
    • Thread
    • boiler combi combi boiler shower
    • Replies: 5
    • Forum: Boilers
  12. I

    Cost to repairing a leaking Worcester Bosch Combi Boiler flow turbine

    Hi there - could someone please tell me what is a reasonable price to pay for a plumber to repair a leaking Worcester Bosch combi boiler flow turbine, pls? Ta!
    • iannutt
    • Thread
    • boiler bosch combi combi boiler flow leaking worcester worcester bosch
    • Replies: 3
    • Forum: Boilers
  13. R

    Seitching to Combi boiler. Advice on hot water

    Hi everyone. I'm in the process of deciding if to switch from a traditional boiler to combi. One thing that is irrationally worrying me is if kids leave hot water taps running. Would that mean the boiler (if it was 30kwh boiler) would be running full pelt and using 30kwh gas every hour? Want...
    • Redman23
    • Thread
    • boiler combi combi boiler hot water water
    • Replies: 3
    • Forum: Boilers
  14. T

    Ideal Logic Combi 24 pinhole leak

    I have a Ideal Logic Combi 24 and the engineer to who comes to service says there is a design fault. It is not a question of if it will fail but when. Apparently the heat exchanger develops a pinhole leak and has to be replaced. Always in the same place. Known about for years. Design has not...
    • Triplemaya
    • Thread
    • combi ideal ideal logic leak logic
    • Replies: 5
    • Forum: Central Heating Forum
  15. G

    Pressure drop not enough to fire dhw combi

    Currently have 14Mx15mm run from combi to tap dhw. If I replaced the last 6M section with 22mm pipe would this help? Taps closer to boiler have no problems firing the boiler.
  16. A

    Pipe size length bends junctions to Combi - affect on water flow rate?

    Hello! Advice required, please. Trying to understand implications of pipe size, length of run, and number of junctions etc. en route between the incoming water feed to the Combi-boiler. For various reasons it is difficult to get from stopcock to boiler without taking indirect route back across...
  17. E

    Shower off combi running hot and cold

    I have a combi Halstead HE 30 in my loft, the past few days the gravity fed power shower runs between hot and cold The sink hot water taps are ok as far as I can tell, I have mixer taps. I look at the boiler code as the sink taps run, it stays on H, but when I use the shower, it switches...
  18. M

    Combi vs unvented???

    Hi guys. I know there’s a lot of people who are happy to just chuck in a combi on every install, whether it’s suitable or not. What I’d like to know is, in what situation do you refuse a combi? Obviously things like a 4 bathroom house might not be suitable but what about cost savings with...
  19. M

    Combi boiler venting into neighbouring driveway

    Hi all, I really hope someone can help me because it is causing so much worry! I bought my house 3 years ago and didn’t know at the time that the boiler was venting out against regs into our neighbours driveway. Our house has a garage conversion so is right up to the boundary line, and the...
    • Mumof2
    • Thread
    • boiler combi combi boiler
    • Replies: 1
    • Forum: Boilers
  20. C

    Grant Vortex Combi 21e no central heating

    Hi, I've recently put some heating/hot water pipes into the floor as there were exposed previously. On refit of the pipes i've gone to test the boiler functionality however, the central heating won't fire. The hot water works perfectly. There is no CH light on the boiler and the return...
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