UK Plumber Forum 

A place of resource for Plumbers and Gas Engineers in the UK.

Put your Central Heating System question in here.
By joni os
#13474
Immaculate 1930s house, lifting flooring not an option.
Open vent, gravity hot water.
Seeking to confirm suspicion of single pipe distribution to rads.
Observation. Turning heat on with rads half full and cold, venting air results in both pipes to rad immediately becoming hot.
Advice on any other test to confirm or disprove, appreciated.
User avatar
By REDSAW
#13477
TBH, i had one the same once,
took 8 hours bleeding the damn thing due to air locks and 'boiling' over didnt even work!
i walked away from any others lol.
Nice to see you again Joni. :D
Try getting a thermal camera to confirm under floor heat source is probably what i would do if the budget is there, then it could also be a mixed system!
good luck :lol: :lol: :lol:

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