condensing

Condensing boilers are water heaters fueled by gas or oil. They achieve high efficiency (typically greater than 90% on the higher heating value) by condensing water vapour in the exhaust gases and so recovering its latent heat of vaporisation, which would otherwise have been wasted. This condensed vapour leaves the system in liquid form, via a drain. In many countries, the use of condensing boilers is compulsory or encouraged with financial incentives.

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  1. C

    Condensing boiler is not for me

    I am a heating contractor/installer/employer with many years experiencenow retiring a bit from installation (knees etc)I would like to canvass some opinions. My friends in low places at BGtell me of horrendous failure rates of condensing boilers. Lots to do with crap in old systems that clog up...
    • Centralheatking
    • Thread
    • boiler boilers condensing condensing boiler oil system years
    • Replies: 12
    • Forum: Plumbing Jobs | The Job-board
  2. R

    Condensing Trianco

    Just back from a Trianco E-Star condensing that was leaking POC on the join between the primary and secondary heat exchangers, predictably trianco had knocked off early being a friday, has anyone come across this before and is the seal a serviceable item? As an aside i can see why there aren't...
  3. J

    New boiler advice for one pipe system

    Hello, My old Potterton Netaheat boiler has packed in. I have a one pipe central heating system and have been advised I will now need to get the whole house converted to a 2 pipe system in order to fit a new condensing boiler. Having just fitted new wooden floors throughout I would like to...
    • james7777777
    • Thread
    • advice boiler condensing new boiler oil one pipe option pipe system
    • Replies: 19
    • Forum: Plumbing Jobs | The Job-board
  4. L

    Moving a condensing boiler waste pipe

    Do you have to be Gas Safe registered to move a gas boiler condensing waste pipe? Or can my handyman do this for me?
    • ljsmith
    • Thread
    • boiler condensing condensing boiler moving oil pipe waste waste pipe
    • Replies: 1
    • Forum: Plumbing Jobs | The Job-board
  5. H

    EHC Ecosave HE condensing gas boiler

    I am new to the forum and am considering installing the Ecosave 32kw gas condensing boiler. Having looked for reviews on the web I can find none and Iwill be pleased to hear from anyone who has installed this boiler or who has had one installed to find out if I am selecting the best option that...
  6. K

    B Gas 330 HE condensing boiler

    Evening all, I looked @ a B Gas 330 HE boiler today with a flue deflection kit fitted. The tenant was complaining about noisy ignition, but not every time it lights. A couple of times whilst I as there when igniting there seemed to be a whoosh/bang !! At first I presumed new electrodes reqd...
  7. S

    Worcester greenstar 30si Condensing combi advice required please

    Hi all Im wondering if this is true or not, ive been told that the radiator setting on the boiler should be set to max at all times and the heat regulated by the room thermostat and the radiator thermostat valve. Can anyone tell me if this is true or a load of nonesense? If im honest i could...
  8. C

    grant vortex eco 15/21 2yrs old condensing oil boiler for sale

    Grant vortex eco 15/21 2yrs old condensing oil boiler for sale, think they ar over the £1000 mark new, comes with vertical flue . like new! in north wales, could pallet if u sort out your own courier. inbox me an offer , would swap for some power tools or hand tools WHY thanks
  9. G

    Worcester junior 24i (non condensing)

    Hi all Gas Lady here.. I have been trying to sort this boiler.. There is a strong spark between electrodes, Gas on inlet of gas valve... but this boiler would not establish a flame until today.. Me and another gsr engineer have been looking at this boiler, new gas valve and pcb as per mi...
  10. R

    smelly grant oil fired boiler

    Can any one help? I had a Grant Vortex Pro Kitchen/Utility Condensing central heating boiler fitted in December and it stinks. Everything checked by several different experts - they are all at a loss. Had a new boiler fitted today and guess what it still smells!! Any suggestions?
  11. B

    can i connect the new boiler with the old flues?

    dear all, i am going to replace an old keston boiler, it has twin flues, everything is easy but the flues is a pain, the aparment is 15m high and i have to hire scaffolding if i have to replace the flues, is it possible i can connect the new boiler with the old twin flues inside the apartment...
  12. S

    Vokera he condensing range 2x 45o deg bends

    Having a clearout so i have brand new set of Vokera HE Condensing Range 2x 45 Deg Bends all the parts here for the two bends Box is bashed but i will rebox it for postage I can load pictures up if needed £20 Based in falkirk, Scotland Can also post aswell thanks Steven
  13. R

    Baxi condensing boiler btu output.

    Hi, Just looking at the instruction manual for my Baxi 100he plus boiler and noticed that the boiler output can be adjusted by removing two 'jumpers' from within the boiler, output goes from 75000btu to 103000btu. The house has 16 radiators in total, what else should be taken into account when...
  14. A

    Bosch RD532 condensing boiler

    I was called out to one of these yesterday morning. The boiler wasn't powering up at all, the customer had recently had all his power knock off at the fuse board and the boiler hadn't worked since. I checked for power coming into the boiler and found 230 volts, checked the fuses and they were...
    • AideyJ
    • Thread
    • boiler bosch checked condensing condensing boiler lights nothing oil power
    • Replies: 3
    • Forum: Plumbing Jobs | The Job-board
  15. R

    Baxi condensing boiler.

    Evening, I've got a 3 year old condensing baxi boiler that has a plastic pipe that runs from the base of the boiler to the external drain of the house. Am I right in assuming that water should drain through this pipe when the boiler is condensing ?? I've never seen anything drain from this...
  16. C

    Voker Linea condensing

    Hi, am having problems with pressure creeping up to 3bar and over an then blowing off through safety valve. Keep having to top up ,then it might run for 6 hours or so then same again, have disconnected filling loop because i thought that might have been passing . Could it be the expansion...
  17. W

    Expansion tank overflow now that new condensing boiler has been fitted.

    Hello. I've just been reading through this great site and thought I'd post my issue here to see if anyone can help please? We have an open vented, fully pumped (I could be wrong) central heating / hot water system and just before Christmas our 20+ year old bolier started leaking at the heat...
    • WickedestSound
    • Thread
    • boiler condensing condensing boiler expansion fitted level oil overflow system tank valve water
    • Replies: 35
    • Forum: Plumbing Jobs | The Job-board
  18. T

    Boiler identification

    Hi All, need a bit of help to id a boiler type from a photo only. there are 7 pipes connecting to the boiler 3 look like 15mm and 4 look like 22mm Its a Worcester Cdi but I need to know if its a condensing boiler or not ??? (poor photo sorry!!) Many thanks
  19. F

    Pressure loss combination condensing boiler

    I have a Worcester-Bosch greenstar boiler which is approximately 4 years old, I know absolutely nothing about plumbing apart from there are plenty of cowboys out there. My boiler pressure is all over the place, it feeds 8 fairly big radiators on a closed system. Recently there's been a slight...
    • fly7471
    • Thread
    • boiler combination condensing condensing boiler oil pressure pressure loss sounds
    • Replies: 7
    • Forum: Plumbing Jobs | The Job-board
  20. D

    strebel scb60 wall hung condensing boiler intermittent lockout

    hi im working on 3 strebel scb60 boilers on a low loss header sharing a common flue.2 of the boilers have got very high co readings on flue gas analyser. upon further inspection the flue seemed to be leaking inside the boiler casing at the top of each boiler.the flame picture was very...
    • Dsgas
    • Thread
    • boiler condensing condensing boiler intermittent lockout oil wall wall hung
    • Replies: 9
    • Forum: Plumbing Jobs | The Job-board

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