I am not sure if here in Estonia we have plastic pipes for oil - I will check.
Do you think a heating cable and insulation will also make a difference or you wouldn't recommend it?
If I bury the pipe I gues I need to be about 0.5m to stop any ground water freezing near the pipe but hen...
I have a sealed system, boiler is a combi Trianco. I am only using the boiler for central heating not hot water (if anything goes wrong and it stops working I still want hot water at least). Situated under the boiler lid/top there is one flow pipe with the pump, pressure release valve and...
1. The distributor/plumbers merchant here advises 12mm plastic coated copper for the piping from tank to boiler (it is normal here) to help against frost/freezing (we occassionally get -30deg). Any advise - should I stick with 10mm?
2. Should i bury the pipe with a heating cable to protect...