I've laid about 30sqm of normal 16mm underfloor heating pipe under a new concrete floor. One reel of 100m and another of about 70m. I have a new 30kW combi boiler.
I read you should have a direct connection to the boiler for the UFH manifold. I have 22mm flow and return pipes quite close to manifold, but that is after two Tee junctions of the 22mm main pipes (not fed any radiators though).
Can I get away with connecting it into the 22mm that is nearby, or do I have to take the floor up and get a branch to UFH before it has gone to any other rads or Tee junctions?
Or I guess it would definitely work at least a bit after branches, but how much better would it be if I made new 22mm flow and return pipes right from the boiler?
I read you should have a direct connection to the boiler for the UFH manifold. I have 22mm flow and return pipes quite close to manifold, but that is after two Tee junctions of the 22mm main pipes (not fed any radiators though).
Can I get away with connecting it into the 22mm that is nearby, or do I have to take the floor up and get a branch to UFH before it has gone to any other rads or Tee junctions?
Or I guess it would definitely work at least a bit after branches, but how much better would it be if I made new 22mm flow and return pipes right from the boiler?