Have got a conventional vented boiler, mid pos. valve, cylinder etc in a large cupboard on the top floor of my house. It feeds DHW + 7 radiators on the same floor. There are no rads. downstairs.
Anyway, wife was nagging as kitchen downstairs was cold. I put a Myson Kickspace plinth heater under kitchen cabinets.
To feed this, I tee'd off from the 22mm flow and return pipes with 15mm speedfit pipes, approx 2 feet from the boiler, and fed the 2 pipes down to the kitchen.
Refilled systems,bled everything, and original rads upstairs fine, but nothing from plinth heater. To investigate, I turned off the isolation valves at the end of the two pipes where they go into the back of the plinth heater, and detached the pipes. With the heating on, I opened each of these isolation valves, and I get water flowing from both of them!!! (before you ask, I definitely have tee'd one pipe to flow, and one to retun near boiler)
Any ideas?
Anyway, wife was nagging as kitchen downstairs was cold. I put a Myson Kickspace plinth heater under kitchen cabinets.
To feed this, I tee'd off from the 22mm flow and return pipes with 15mm speedfit pipes, approx 2 feet from the boiler, and fed the 2 pipes down to the kitchen.
Refilled systems,bled everything, and original rads upstairs fine, but nothing from plinth heater. To investigate, I turned off the isolation valves at the end of the two pipes where they go into the back of the plinth heater, and detached the pipes. With the heating on, I opened each of these isolation valves, and I get water flowing from both of them!!! (before you ask, I definitely have tee'd one pipe to flow, and one to retun near boiler)
Any ideas?