15mm gas supply

[REDSAW]

what heat only boilers are available in 15mm supply?

total length from meter is only 6m inc bends but the route outside is a mare passing electric cab, walls gates and downpipes..and existing behind all the cabinets:thinking:

easier if 15mm supply boiler is available then its a plug in job to suit their budget..

any ideas?:dizzy2:

 

[ShaunCorbs]

baxi solo, viessmann vit 100-w need more?

 

[Scott_D]

Ideal logic and Vaillant

 

[gassafe]

Worcester 12 & 15 Ri allow 15mm supply but it has to be within a few meters & meet all the regs obviously 😉

The boiler itself still has a 22 inlet so upsize where you can...

 

[gassafe]

This is the Worcester blurb...

 

[AWheating]

the boilers nut size dont really matter you can reduce, increase as needed.

 

[REDSAW]

think more what i am asking is the input rate,
ie is there any boilers that require lower input rate for 15kw (15mb) that only require 15mm pipe run for heat only!

at least i know what i mean, think its the lack of variants of installs and cant be arsed to read up lol, as normally just upgrade 22mm pipe to meter as norm then gas rate.

 

[ShaunCorbs]

think more what i am asking is the input rate,
ie is there any boilers that require lower input rate for 15kw (15mb) that only require 15mm pipe run for heat only!

at least i know what i mean, lol

mine only needs 15mm

 

[wattsie1987]

Without sounding like a tw@t work out what boiler output is needed then get the m3 p/h and do a pressure loss calc. Anything else is guessing.

 

[REDSAW]

Without sounding like a tw@t work out what boiler output is needed then get the m3 p/h and do a pressure loss calc. Anything else is guessing.

like i said 15kw h/o required 1.53m3h.
how can you do the loss if you cant see or access the pipe work behind kitchen cabs and boiler dosnt work?

might just stick price in for pipe upgrade.....if needed!.

 

[Chalked]

like i said 15kw h/o required 1.53m3h.
how can you do the loss if you cant see or access the pipe work behind kitchen cabs and boiler dosnt work?

might just stick price in for pipe upgrade.....if needed!.

You new route with 6m ( inc fittings) is bang on 15mm copper.
Why not say you will fit the new boiler, test it and if it's below, gas will need repipe at extra cost?

 

[REDSAW]

You new route with 6m ( inc fittings) is bang on 15mm copper.
Why not say you will fit the new boiler, test it and if it's below, gas will need repipe at extra cost?

yep, just writing that in quote now...

i heard that the gas police have pulled a few using 15mm pipe runs although boilers are not under pressured. to do with further upgrades.
dont want to bait em!!