Minimum Distance from Boiler before fitting Speedfit?

[Balenza]

Softus wrote

Then take another look around the forum, and you'll probably want to change seats.

I doubt that very much Softus.

 

[kevplumb]

Softus wrote

Then take another look around the forum, and you'll probably want to change seats.

I doubt that very much Softus.

yer might want to change your location E

 

[Balenza]

Softus wrote

3. You won't get anywhere by challenging (aka daring) other members to produce statistics.

Thats because their are no statistics Softus.

NONE.

 

[Softus]

Then take another look around the forum, and you'll probably want to change seats.

I doubt that very much Softus.

Quite so - I didn't really expect you to be that open-minded.

 

[Balenza]

kevplumb wrote

yer might want to change your location E
__________________

Not at all. Every time I come back to this forum I make a mix up with my passwords , so just re - register with a new name.

Your still an idiot for labelling someone a cowboy who uses plastic piping and if I met you face to face I would still call you an idiot.

 

[markie]

keep it going chaps it's been awhile lol

 

[Softus]

Every time I come back to this forum I make a mix up with my passwords...

Your still an idiot...

 

[kevplumb]

keep it going chaps it's been awhile lol

cheers yer geordie git

 

[markie]

keep it going chaps it's been awhile lol

cheers yer geordie git

well there's sh#te on the tv lol

 

[Softus]

well there's nout on the boxs lol

Scrubs!

 

[markie]

well there's nout on the boxs lol

Scrubs!

done that and still walk funny

 

[Mike2007]

Hello, This was the original question:

I have a Greenstar Heatslave 18/25 combi, whats the best distance from the boiler before it being possible to change to plastic?? Bosch-Worcester say "Do not use plastic pipework on sealed systems"!!

Are they covering their ass or is this perfectly true for this boiler in sealed system?
Thanks

This seems to have opened a can of worms about plastic! If plastic plumbing was unsafe it would not get a BS number or it would be outlawed by the HSE. Safety regs are as tight a ducks **** these days, let me see some disaggree with that? Copper is a noble material to work with, but if monkeys install it then its no better (maybe worse) than plastic pipe. The issue seems to be the deteriation of plastics structure due to extreme heat and pressure combined, something copper can tolerate quite well.
Maybe just use it for CW distribution, UFH now?

My question is answered and closed I think!

 

[ChrisR]

The issue seems to be the deteriation of plastics structure due to extreme heat and pressure combined,

No deterioration, it's just the "property" of the material.

Engineers do not design based on regulations alone, but on ALL the parameters of the goods.

 

[mark lycett]

so what i have got from this thread is you cannot use plastic fittings within a metre because if there is a double fault, i.e., the over heat stat and the pressure relief valve both fail the plastic fittings will fail due to the heat and the pressure. LOL, so you guys would rather have the boiler blow up than a plastic fitting fail. Got to love your devotion to copper.

 

[charliegolf]

The person who wants to fit a sealed heating system in plastic pipe should be regarded as a potential cowboy!

A sensible owner would get each installer to quote for both copper and plastic.

Any professional installer could quote for either!

My view is that plastic is unsuitable for heating systems because it cannot stand double fault conditions!

Tony

Phew, thank goodness I haven't had double fault conditions in the last 29 years!