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heat

Recent contents Top users
  1. K

    Help!? Replacing Old Sunvic stat w Nest Learning Thermostat 3rd Gen - Heat only system

    Evening all, Apologies if this has been covered in another thread - I've never called upon a forum before! 😬 We're in the process of upgrading our old heat only boiler with a new Ideal Logic heat only boiler. So, feels like an opportune time to upgrade our ancient (albeit reliable) Sunvic...
  2. B

    Boiler advice - System or Heat only boiler

    Hello I wanted some advice on what boiler I need. A system or heat only boiler. My property was built in 1998. I have an unvented cylinder, there is no separate water tank in the loft. I have two en-suite rooms i.e. one bath and one shower. The system runs off the mains water supply. Two...
  3. C

    How do I get heat to a far away radiator

    Hi, I have a radiator here and it isn't getting any heat to it. Water runs out of both sides and it's been cleaned out. It works when all the other radiators are off so what I'm thinking is that the hot water isn't reaching the radiator due to the pump not having the strength to get it there...
  4. S

    Baxi 80e continuously cycling on and off on heat

    I have a Baxi 80e, old, but works well and I'm told easy to work on and spares available at a reasonable price, so not keen to put in a new one just for the sake of it. At the beginning of April, it developed a fault on the heating side (hot water is fine). It lights (when heat is requested by...
  5. T

    Condensation inside Heat only boiler casing - a couple of questions.

    Hi all, I've got a British Gas 330+ Heat only boiler and it displayed an F25 error (lack of water iirc) on Sunday. I read the manual and bled the radiators (1 rad had quite a bit of air) and topped the system up a little and sure enough I could then hear water flowing back into the boiler. I...
    • Tundra
    • Thread
    • boiler heat questions
    • Replies: 2
    • Forum: Boilers
  6. F

    Two rads do not heat

    Two radiators in extension do not get hot. Been flushed through bled etc. Rads balanced in house. They get hot when all other rads off but not roasting to the touch, the minute you turn on any other rads, they go coolish again. Could boiler not be strong enough? If so, would changing all...
  7. SimonG

    Heat Interface Unit?

    Where will I get one of these from, or even two? The brass thing in the middle? Looks like a pressure differential valve of some description.
  8. Z

    No switched live to boiler when hot water tank thermostat demands heat + CH staying on.

    Hi folks. I have a couple of issues, any help advice much appreciated. 1. When my hot water tank thermostat demands hot water (wired into Honeywell wiring centre), I do not get a switched live to the boiler. I get 69 volts ac for both on and off wires from the tank stat. I have fitted a new tank...
    • zipster
    • Thread
    • boiler heat hot water tank thermostat water water tank
    • Replies: 4
    • Forum: Boilers
  9. D

    Heat Link Cable Length

    Can I connect the Nest Heat link unit to the boiler with 25M of cable to move the Heat link unit closer to the centre of the house and therefore the Nest controller. The boiler is quite remote and the house has thick walls which block the signal.
  10. R

    Kick board fan assisted heat exchanger ?

    Removing 4ft radiator in kitchen and looking at installing one of those under unit heat exchangers due to having no wall space in new kichen, what size and model to go for.
  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...
    • gcleve
    • Thread
    • boiler combi combi boiler heat worcester
    • Replies: 1
    • Forum: Boilers
  12. D

    Worcester Negative Fan Pressure decrease after cleaning heat exchanger

    Hi, I am new gas safe registered. I serviced a old worcester R28 HE Z7-28 system Boiler. found negative fan pressure -3.95mb lower than MI's -4.2mb, Gas rate is 2.82 m3/h, little bit lower than MI'S 2.9M3/H, so clean heat exchanger very well. after that check fan negative pressure, -3.11mb...
  13. G

    Blocked heat exchanger

    Hi, I have a Baxi Duo Tech Combi 33 boiler fitted to my small bore system in 2010. When the boiler was fitted I suspect no corrosion inhibitor was added to the system. Over a period of time I lost flow to a radiator, this was resolved by renewing a completely blocked section of pipework and...
  14. D

    Hot water boiler for floor heat bleeder valve question

    have a hot water boiler (was converted to steam before me). Want to run the oxygen Barrier pex under the bathroom floors for heat. Do these loops need a bleeder valve? Thanks
    • Dandeeboy
    • Thread
    • boiler floor heat hot water valve water
    • Replies: 3
    • Forum: Boilers
  15. K

    Worcester heat slave problems

    I have a Worcester heatslave 20/25 oil boiler leaking water from the automatic air vent do I need just too replace the vent or is there some other reason for the leak
  16. soother

    Ideal logic primary heat exchanger leak sealant success?

    A mate tells me he cured a heat engine leak on this boiler (confirmed by boiler isolation & dripping condensate drain) by adding K-Seal car type sealant, and It's still ok after 5 years. Has anyone else had success curing these leaks with sealant additives?
  17. O

    Heat Exchanger for new Boiler

    Hi all, 25 year old boiler need replacing. Existing boiler, 220 kW doing Aged Care Facility. I want to install a condensing boiler, but are worried about not being able to clean the system efficiently to not cause damage to the new boiler and void warranty. The best option I can see is to have...
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