Conex pushfit and solid fuel heating

[oldbutnotdead]

Looking at options here- I may or may not be using a woodburner to drive the radiators and hot water- that's for the future, right now I've got some heating pipework to bury and I want to make sure it is compatible with either 'uncontrolled' (wood burner) or controlled (gas/oil/whatever) heat source. Plastic tube and couplers are a no-go- Speedfit and Hep2O both specifically prohibit their kit in uncontrolled source systems.
Does anyone know offhand whether the Conex pushfits are permitted for use in such a system- I've been wading through their product literature and can't find a specific mention. Reason for Q- there'll be 2 rad pipes poking out of a wall, I'll need elbows of some sort on them to get to the radiator once the wall surface is finished (yes I could get the tubes to emerge behind rad valves but it would be a monster pain job). Plus there's a couple of T joints up in the ceiling that are going to be iffy for blowlamp access. Ta for help

 

[stardanny]

Solder ring fitting is the way to go. Push fit and compression fitting cannot be buried in screed All push fit fitting are unsuitable for solid fuel boiler as the temperature cannot be controlled well and the F&E tank must be made of metal.

Daniel.

 

[Corgigrouch]

Just to add, primaries must be 28mm..

 

[oldbutnotdead]

Ta both- been playing with end feed fittings, the DT's really don't make for a neat job so think I'll have to bite the bullet and go for solder ring (at twice the price boo). Had a suspicion those Conex wouldn't be rated, they still rely on an O ring, but thought it worth an ask.

Looking again at the install requirements, I'm starting to wonder if it is worth the faff required to connect radiators- might just settle for hot water connection & convection/gas to heat the rest of the house. See what the stove fitters reckon.......

 

[Corgigrouch]

Running the pipework is one thing connecting the stove to the heating so that it works correctly and is safe is another..