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combi

  1. 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...
  2. 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.
  3. 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...
  4. 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: Boiler Advice Forum
  5. 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...
  6. 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
  7. 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.
  8. 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...
  9. 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...
  10. 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...
  11. 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...
  12. 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...
  13. N

    What size combi for my daughters house.

    Hi all....my first post.....talked my daughter into seeing about a new modern gas boiler to replace to very old one she has now. Its the type that has a separate electric water heater....parts are very hard to find for it. She has had a few prices and one guy said she needs a Worcester 32Cdi...
  14. N

    Hot water on constantly vaillant ecotech 30 combi boiler

    I notice last night my boiler cupboard was really hot from the hot water pipe, but my husband had just had a shower. This morning it was still hot when we first got up and we noticed the tap symbol was flashing. This is supposed to flash when using the hot water. We've tried turning off...
    • Nuts&Bolts
    • Thread
    • boiler combi combi boiler hot water vaillant water
    • Replies: 1
    • Forum: Boiler Advice Forum
  15. T

    Ideal Logic+ 30 combi - timer or room stat off

    I have an Ideal Logic+ 30 combi boiler which was running fine up until a power cut earlier today. Now it's stuck saying "timer or room stat off" whilst in Winter mode and the central heating won't come on unless manually triggered by the thermostat by increasing the temp. I've tested the...
  16. S

    No hot water. Combi Greenstar i

    Good afternoon. Our Greenstar i combi boiler works fine for heating but I am trying to find out why the boiler doesn't fire when I call for hot water. The fan seems to go but no blue light or firing up. Checked the pressure, all OK. The radiator underneath the boiler had a lot of air yesterday...
    • Snowyfox
    • Thread
    • combi greenstar hot water water
    • Replies: 1
    • Forum: UK Plumbers Forums
  17. S

    Combi boiler over flow pipe?

    I have a end terraced house. Boiler attached to concrete wall on the end of the terrace. There’s a copper pipe curved into the wall with maybe a 1-2cm gap. The water sometimes leaks onto the wall and I’m worried about the damage it might cause. The kitchen drains are on the other side so would...
    • Sm1990
    • Thread
    • boiler combi combi boiler flow pipe
    • Replies: 3
    • Forum: Boiler Advice Forum
  18. jojo77m

    Combi not stopping on schedule

    I have a programmable thermostat set with a daily schedule 06:00-09:00 the maximum temperature should be 21c, every radiator in every room has a TRV, this morning the room with the thermostat was at 25c and the radiators in that room (and all the other rooms) were still on and the boiler still...
  19. J

    Adding solar thermal to existing bosch combi idea.

    Hello, So I want to add a solar thermal system to my existing Worcester bosch greenstar but don't want to lose the functional benefits of the combi boiler. I'm proposing to install the solar collector on the side of the house in a position that will enable gravity flow to a 200litre tank just...
  20. Jarrvo

    Combi or System boiler advice

    Hi all, I'm after a little advice for my elderly parents. They have a Ideal Classic RS240 that is probably 20 years old which has seen better days and a hot water tank that has started to leak. It's a 3 bed house with 1 bathroom (shower bath with a pump). Plus an ensuite which has an...

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