pex piping on primary circuit on solid fuel

jj58

What the law or regs when you come across 1" pex pipe direc t from stove to cylinder. Seen a few. And when I tell customers that I have to fix it I get no call back. Seen one on a sealed system too.
So whats the regs
How would you approach the customer telling them. Its wrong.
Any horror stories to tell.
Cheers

Robbie.G

jj58 wrote: »

What the law or regs when you come across 1" pex pipe dire t from stove to cylinder. Seen a few. And when I tell customers that I have to fix it I get no call back. Seen one on a sealed system too.
So whats the regs
How would you approach the customer telling them. Its wrong.
Any horror stories to tell.
Cheers

There are no laws or regs regarding this Afaik only manufacturers instructions.Qualpex will state it has to be a min of 1 mtr from any heat source but common sense would tell you not to use pex on an uncontrollable heat source.

oikster

Robbie.G wrote: »

There are no laws or regs regarding this Afaik only manufacturers instructions.Qualpex will state it has to be a min of 1 mtr from any heat source but common sense would tell you not to use pex on an uncontrollable heat source.

Absolutely.

shedweller

Common sense is not that common!

jj58

One thing that does happen is little weeps appear on the joints as the pex softens when the stove boils over a dew times.
One house the client said the fittings had blown off before. .
What temp is pex rated to. I would imagine that da pipe would slit or burst prolonged high temp

Dtp79

jj58 wrote: »

One thing that does happen is little weeps appear on the joints as the pex softens when the stove boils over a dew times.
One house the client said the fittings had blown off before. .
What temp is pex rated to. I would imagine that da pipe would slit or burst prolonged high temp

I think ( not sure ) its rated over 100 degrees at low pressure. The higher the pressure the lower the temp.

Robbie.G

Solid Fuel Boilers
The gravity circuit on a solid fuel heating system should always be installed using copper tube. Qual-PEX may be used on the secondary (pumped) side of a solid fuel heating system, provided that the nearest connection to the boiler is at least one metre away from the boiler and outside the fireplace.

shane0007

Qualpex cannot be used on the primary circuit for solid fuel. It can be used on the secondary circuit as long as the first tee for the secondary circuit is more than 1m from the heat source.
It is only rated for 82C.
Qualpex themselves state this.
The primary circuit must be in 1" copper with a maximum flow distance to the cylinder of 26ft allowing 300mm for sweeping bends & 500mm for elbows.

lomb

Can the vent pipe be in qualpex over the cylinders gravity circuit?