N
nickhants
I have had an extension with wet underfloor heating installed.
I have spent hours bleeding valves and can get it running for 20 mins then it stops once it runs out of hot water.
The manufacturers say that the pump is not giving enough pressure.
Having looked into it the system it has been installed before the pump and so in my view is not getting any pressure at all. There is a pressure guage indicating this. The plumber has had no experience installing this type of heating. He was organised by the builder.
The ceiling was down before the extension was finished (not now). The underfloor heatin flow and return are 5 feet from the boiler, the pump is 50 feet away behild floorboards and 2 brick walls.There is a 2 foot square attick i can crawl into just! to get to stopcocks for the new heating.
I can see 2 options out of this.
1. If i crawl into the attick i could connect it to a radiator line, which incidentally is the first to come on when the heating starts, will there be enough pressure. All the info i have manage to get indicate that the underfloor heating should run on its own circuits, with radiators and heating on separate circuits one at a time.
2 if i install a second pump to the new heating will it overpower the boiler with too much return pressure causing it to shut down. This pump would be on whenever the rooms thermostat was on stealing hot water from whichever was on hot water or central heating.
Any suggestions ?
I have spent hours bleeding valves and can get it running for 20 mins then it stops once it runs out of hot water.
The manufacturers say that the pump is not giving enough pressure.
Having looked into it the system it has been installed before the pump and so in my view is not getting any pressure at all. There is a pressure guage indicating this. The plumber has had no experience installing this type of heating. He was organised by the builder.
The ceiling was down before the extension was finished (not now). The underfloor heatin flow and return are 5 feet from the boiler, the pump is 50 feet away behild floorboards and 2 brick walls.There is a 2 foot square attick i can crawl into just! to get to stopcocks for the new heating.
I can see 2 options out of this.
1. If i crawl into the attick i could connect it to a radiator line, which incidentally is the first to come on when the heating starts, will there be enough pressure. All the info i have manage to get indicate that the underfloor heating should run on its own circuits, with radiators and heating on separate circuits one at a time.
2 if i install a second pump to the new heating will it overpower the boiler with too much return pressure causing it to shut down. This pump would be on whenever the rooms thermostat was on stealing hot water from whichever was on hot water or central heating.
Any suggestions ?