heat | Page 9

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heat

Recent contents Top users
  1. T

    Heat Exchanger

    We suspect that we might need a new heat exchanger for our boiler which is a Vaillant ecoTec plus 428. Can anybody who has experience with this type of boiler tell me how easy it would be for a Heating Engineer to confirm that this is our problem? Also, if it needs to be replaced, what would be...
  2. M

    Combi boiler pre heat

    On average how much a year would you suggest it cost to keep.the hot water preheat on. On a combi boiler. Thanks.
    • Matt0029
    • Thread
    • boiler combi combi boiler heat
    • Replies: 28
    • Forum: Boilers
  3. P

    Worcester greenstar 18ri heat exchanger/heat cell

    Plumber says the heat exchanger aluminium baffles are breaking down and blocking the pipe which he showed me,now the question is do I change the heat cell or go for a new boiler. My boiler is 13 years old.
  4. R

    "Main" (Baxi) 24HE A Heat only boiler temperature setting

    Hi. Bored and wondering about a friend's boiler that was fitted a few years ago and that, having been involved with the heating system, I take an interest in. One of these jewels...
    • Ric2013
    • Thread
    • baxi boiler heat main
    • Replies: 5
    • Forum: Boilers
  5. M

    Blue light constant on Worcester boiler but no heat

    Blue light on but no heat from radiators. When I reset the boiler, there is a slight chugging noise like it’s wanting to fire up but can’t. The blue light is on constantly
  6. R

    air source heat pump central heating

    Hi I have had a brand new and very expensive air source heat pump installed together with radiators etc (had storage heaters before). The water tank is in the airing cupboard on the first floor. I am hoping someone on this forum has experience with these systems. I have two questions. How long...
  7. M

    heat Interface Unit??

    In all my years I've rarely come across them! Just tendering for a shop fit at Embassy Gardens nr Battersea and the spec mentions it needs a HIU, but thats it, no further information? Its only going to do hot water as far as I know, and its for a small salon thats opening. Anyone got a...
    • MOSSEP
    • Thread
    • heat
    • Replies: 2
    • Forum: Plumbers Arms
  8. V

    Any clever ideas for cleaning soot blockage from Grant Condensing Heat Exchanger?

    Anyone got any suggestion on how, if possible you could clear soot from the condensing heat exchanger of a Grant Vortex. Have many of you encountered blockages like this? Have any of you been able to avoid condemnation of the boiler the due to the stainless heat exchanger being blocked? What can...
  9. M

    Expansion position heat only boiler

    I know when installing an expansion vessel it must be connected to the system without any isolation valves. How is best to pipe in to the system so it can't be isolated. In the diagram below a potential way I was going to pipe in to a heat only boiler. It could be isolated by isolating the...
    • Matt0029
    • Thread
    • boiler expansion heat
    • Replies: 39
    • Forum: Boilers
  10. Husk24

    World Heat unvented Cylinder question

    Hi guys I am having my current cylinder replaced with a World Heat superflow indirect cylinde as im upgrading to solar thermal via a grant. I asked the supplier if they are replacing the immersion heating thermostat and the thermostat thats connects to the boiler and I was told if I want that...
  11. P

    Finding the order in which radiators heat up

    In order to find out the order in which radiators in the house heat up, would be possible to time the point at which heat is detected through either the flow or ruturn pipe on the radiator?
  12. I

    Plate Heat Exchanger - Correct orientation

    Hi all. Looking for an opinion; on the correct orientation of a plate heat exchanger. I had a discussion in passing about installing a plate heat exchanger on its back so that the connections are face up, standard orientation is that the platte exchanger sits on one end and the connections...
  13. B

    When my oil heating is on should it heat the water in my back boiler of open fire as well?

    When my oil heating is on should it be heating the water in my back boiler of open fire as well?
    • Bomber74
    • Thread
    • back boiler boiler fire heat heating water
    • Replies: 3
    • Forum: Boilers
  14. Roy_66

    Hydrogen Boilers, Heat Pumps, Funny Cylinders etc. etc.

    Some positive news. For anyone not seen, interesting video from Roger B. on the future for boilers vs heat pumps etc. etc. Includes some more slightly wacky but interesting points like horizontal cylinders and boilers - anyone done one / seen one on hol ? Was interested also that their...
    • Roy_66
    • Thread
    • boilers heat
    • Replies: 1
    • Forum: Boilers
  15. S

    Air to water heat pump with ufh, how many zones?

    Hi, For a small house (100m2) with and air to water heat pump and underfloor heating, how many thermostatically controlled heating zones would you recommend? There are 3 no. bedrooms, a bathroom, hall, sitting room and kitchen/dining room. The house will be rented out so providing a zone for...
  16. CorgiDirect

    40% off Fernox Central Heat Protector F1 Express and more

    We have special offers on Fernox product. While stock lasts. 30% OFF Central Heat Cleaner F5 Express (280ml) 18% OFF Fernox Central Heat Leak Seal F4 Express (265ml) 40% OFF Central Heat Protector F1 Express (265ml) https://www.corgi-direct.com/fernox-best-prices-online-18160-0000
  17. F

    Downstairs rads taking ages to heat

    Hi there I’m brand new to this forum and really need some help. my downstairs radiators can take an age to heat up. Sometimes they just don’t heat up at all. Other times they do heat up and all is good. Until I turn the heating down at night and the issues begins again the next morning. A...
  18. E

    Blocked Heat Exchanger?

    The central heating system (Valliant Ecomax 622, 8 large double radiators) had been losing pressure for several months and I'd been topping it up every other day during the cold periods, but it hardly needed it when the heating was off for a while. The radiators had been making 'tinkling' sounds...
  19. H

    Heat Input Gas Hob

    Hi, Just started doing my gas course and we went through on my course the calc for gas rates and working out heat input etc. I have just done a gas rate on my hob and it seems there is a discrepancy of 1 between my reading and the MI. Assuming the heat input figure in the MI is always in...
  20. king of pipes

    Ideal logic 24kw heat

    A routine vist to service this boiler a first time for me, turned into a bit of a nightmare as you can see below a small hole had appeared in the plastic flue part that takes the condense away made a right old mess in there i did a temporary repair job and serviced a full safety check it all...
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