- Joined
- 29 Jan 2017
- Messages
- 149
- Reaction score
- 4
- Country
I needed a boiler fitting before Xmas so was pleased that a local firm was able to do it. The guy who came round seemed very knowledgeable but then he didn’t fit it-he sent 2 young lads. They ran the pipe from the back of the external meter box into the extension in 28mm pipe, which in the clips, sticks out about 45mm, up the wall and along the underside of the 1st floor joists. After approx 3m it tees off to 2x 22mm, a further 2m to the boiler with 1 more 90 bend. The other branch of the tee is for a possible future high efficiency gas fire. This 22mm has been capped off and left under the floor into the main house.
The gas flow rate for the boiler (WB 28cdi classic) is 4.2m3 The gas flow rate for the proposed fire is 1.0m3. My interpretation of the sizing charts is that 22mm would have been adequate for the incoming all the way to the boiler and then 15mm to the fire. Instead I have this ridiculously large pipe up the wall and under my ceiling that, if run in 22mm would have fitted behind my dot & dab and also through the joists rather than under them. Is there a reason for the 28mm and is there a way to hide it?
I also note that where the pipe goes into the house (although the hole isn’t filled yet) there is no sleeving where it goes through the rim joist or the part that will be in the wall.
Any comment or advice will be appreciated. Thanks.
The gas flow rate for the boiler (WB 28cdi classic) is 4.2m3 The gas flow rate for the proposed fire is 1.0m3. My interpretation of the sizing charts is that 22mm would have been adequate for the incoming all the way to the boiler and then 15mm to the fire. Instead I have this ridiculously large pipe up the wall and under my ceiling that, if run in 22mm would have fitted behind my dot & dab and also through the joists rather than under them. Is there a reason for the 28mm and is there a way to hide it?
I also note that where the pipe goes into the house (although the hole isn’t filled yet) there is no sleeving where it goes through the rim joist or the part that will be in the wall.
Any comment or advice will be appreciated. Thanks.