By utilising a high quality internal boiler design, condensing boilers are able to recover more heat. 3 posts • Page 1 of 1. by Freddyson » Sat Oct 18, 2008 4:14 pm . Before they’re released, they pass through the boiler’s internal heat exchanger, which then recycles the heat from these gases that’s otherwise lost. Switched of the boiler and left over night. While it could be a quick fix, it could indicate something much more serious. How to fix a leaking boiler. Luckily this was picked up before the new tenents moved in. That looks towards the steeper end of the scale. In order to double-check, you can go outside and see if the flue makes strange noises as well. Moisture in your furnace's flue or vent pipe should not be taken lightly. Please confirm that it is the flue that is dripping and not one of the other pipes. Our boiler (glowworm cx30i) flue runs through garage just under ceiling height to external wall, it's been in for about 7 years, no problem until now, recently the clamps joining the flue extension pipes have started dripping, I have tried tightening the clamps but they are still leaking, Often it is the slope of the pipe that is at fault. The flue should be accessible so go round and put a spirit level on it. Modern condensing boilers should have a rising flue. Enter the ceiling just after rain to check that the new flue pipe is not leaking. The purpose of the condensate trap is to gather the condensate produced by the boiler and discharge it afterwards. tho', as the condensate forms droplets there. Remember to seal all the joints. It's normal to get a bit of dripping. Since then no one has picked up the flue position fault. Then on start up the fan runs and the air movement creates a bit of a waste and pushes it out? Flue might not have correct fall back to boiler. Condensate pipe is dripping when the boiler has not been used for a number of hours (I have put some drain dye in the rads and the condensate water is reddish) . ). It shouldn't drip anyway, sounds like it's been fitted without enough fall back to the boiler. This boiler was serviced last year and the flue fault was never picked up. But not volume. You might be detecting an upcoming blockage if you start hearing a gurgling noise from the boiler. Step 4 – Check the Flue Pipe Again. The other flues you've looked at nearby might not be from condensing boilers, so won't be producing this plume (or, rather, it fires all the steam out well in to the air! I have a 3 year old gas condensing boiler fitted in my kitchen. Chris8987 New Member. I've not had chance to properly inspect the boiler yet so not sure where the water is dripping from. I was round a friends today and noticed water dripping from the boiler flue joints. If not repaired, eventually, the corrosive condensation dripping down the flue will cause a flue or ventilation failure. These issues have been observed on all kinds of furnaces, including gas and oil furnaces. Common causes of a Baxi boiler locking out include overheating (110), fan fault (160), flue overheating (E131) and an issue with the printed circuit board (PCB) (E168). There should be no white on show as it's not UV protected and will degrade. There will always be some water dripping from the end. Discussion in 'Plumbers' Talk' started by Chris8987, May 8, 2020. The boiler condensate trap is blocked. Safety First Flue Condensation Problems. ... With Condensing boiler the flue has to rise away from the boiler, this allows the condensate to run back over the secondary heat exchanger. No worries. Combi Flue dripping. As others have said, condensing boiler flues should rise away from the boiler for this very reason. Ive had a similar issue on a new boiler recently, the issue turned out to be a seal on the flue. Any conscientious boiler installer will return to check and correct the work for you and fix those leaks.

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