Derek in this video takes a look at the new Baxi/main boiler flue standards which changed 1st September 2021 and sees how it is going to effect gas boiler installers .
Put a POC management kit today on main to get it above 2m high, sounds like I need to go back to put guard on then !! I should have checked I thought I would not need it over the air intake! Cheers Derek
Your baxi flue update video prompted me to look into uv stability in relation to powder coated metal flues! Illuminating it was! Basically it goes back to the fact that the flue manafacturers produced a product that was Basically flawed and in the long term was never fit for purpose.
Cheers for the information i did see the addendum they sent out says applicable from 01/09/21. no idea if they are different flues or have just decided its fine now would be nice to know!
Baxi have added uv resistant stabilisers to the powder coating on their flues. This means the white in certain circumstances can be exposed. I received info from Baxi a few weeks back explaining in which circumstances the white can be exposed in. Thanks for sharing as always Derek 👍
Have just researched the effects of UV on powder coated materials, an eye opener! Learn what I've just learnt and you might conclude the manafacturers have been on a journey of discovery! Call me a sceptic, cynical or just a poor soul looking for transparency.
@@rayc1503 in plain terms, Baxi and others provided an approved flue system that consequently with the passage of time in real time use has proved to have major shortcomings. Maybe Baxi etc. and the various flue manafactures can account for their product long-term shortcomings!
This makes no sense to me. Their outer flue is made of metal. Since when did metal need to be UV-stabilised? I always thought the reason for no white showing was to protect the metallic flue from the rain and thus corrosion. Speaking of corrosion, why isn't the outer flue made of plastic? At least there would be none of this corrosion...
URGENT question for you , I have had my boiler flue that exits the wall outside then an elbow and a straight pipe then another elbow and then the flue end which is angled it goes through my carport roof it was all done by a gas register engineer and has been certificated every year for many years the car port used to be open on 3 sides until they fitted the snorkel type flue and because all the gases go directly out above the roof I closed two of the sides but still has a open full width side is there any valid reason why this type of flue cannot be fitted again if I got a new boiler ? I would very much appreciate your reply 👍👍
I emailed and spoke to glow worm about extending there flue up externally through a car port roof then a bend with the terminal in and they said no problem just seal the joints I even phoned back to get a different advisor and got told the same thing
Nice one Derek , it's basically a crock of shit really just a way out for the manufacturer's not producing fit for purpose components in the first place , outer flues should be made from tough uv resistant plastic like you find on a vertical flue , the only good thing that they have done is make a 2m length , it should be 3m really and that would save a lot of hassle , I've always put a locking screw on push fit joints anyway as I don't trust them...... 👍
I have a 17 year old Baxi 100/2 HE Plus bolier that needs a new flue. Do Baxi still make this part or do they have one made to the new regulations that will fit? (Like a multifit?). Thanks.
UK flues are so different from flues in NL. Screws through the pipe are forbidden here, and the preferred material is plastic these days. Also, they are not branded, but universal.
To make plastic UV stable they add carbon black powder. That's why u see black plastic on cars etc. You would think they would just add a black push on sleeve over the white!
Where can I purchase STAINLESS STEEL WALL MOUNT PIPE HANGER CLAMP - 102-108 mm for BAXI vent for a 1 m vertical exhaust BAXI vent and attach to the wall in two locations? Murphy Builders
So what Baxi are saying is that, the coating they were using on their flue systems was not up to scratch and the material that the flue was made of was poor as well and was subject to corrosion when exposed to the elements. Dead useful when it was mean't to be outside in the rain and the UV's. Just saying like.
Don't get this UV stable thing! Air tubes are , if metallic not at risk of UV degradation but are from corrosion due to atmospheric conditions.(oxidation) 100mm of white bits is OK, exiting the wall, clearing balcony. Assuming flue clears balcony as prescribed, white bits from wall to terminal are OK even if more than 100mm! Clear as mud to me, so I'm either thick or this issue over white bits is yet to be resolved. In my simple mind, any flue, whatever the material should be SUITABLY corrosion and UV resistant for the life of the appliance! The shortcomings of manafacturers flue systems has been an ongoing debacle for too long.Usually the installer is the culprit, when in fact this is only part of the problem. Don't anyone, manafacturers or others deny the issues surrounding this problem have been clarified. From day one flue manafactureres should have produced a product suitable for all reasonable installation scenarios.
I think it's the paint that protects the "metallic" flue that needs to be UV resistant. If the paint goes/weakens (due to the UV) its no longer protects and the flue can rust.
