G
Gasangel
Hi everyone,
This is my first post on the forum.
About a year a go I installed a combi boiler in a property, the installation was a conversion from a fully pumped system boiler.
the house sat empty for a month or so before a tenant moved in, the tenant has complained that 3 rads don't heat up, after investigation I have found that the only way to get them to heat up is to turn off the upstairs trv's, I have tried balancing rad by rad but as soon as Most of them are back on the 3 problem rads lose there heat. Now I know your all thinking that the boiler is undersized but I can assure you it's not it's a compact 35kw the house is 3 bed with 11 rads, 4 of which are small singles.
I have tried applying f5 ( sludge remover) which has been in a week with no joy ( it has a filter and was originally flushed). Now 2 of the problem rads are in a room which kind of drops down a foot or so lower than the rest of the downstairs the other is in the opposite room (which has 3 rads) 2 are fine.
I have tried bleeding,balancing etc, incidentally the old system heated up fine, all rads have trv's except the bathroom rad.
My next step is 2 swap the flow and return around and try draining the system.
Any advice is greatly appreciated, I have not come across this before whe the heating is worse after converting.
Thanks everyone.
This is my first post on the forum.
About a year a go I installed a combi boiler in a property, the installation was a conversion from a fully pumped system boiler.
the house sat empty for a month or so before a tenant moved in, the tenant has complained that 3 rads don't heat up, after investigation I have found that the only way to get them to heat up is to turn off the upstairs trv's, I have tried balancing rad by rad but as soon as Most of them are back on the 3 problem rads lose there heat. Now I know your all thinking that the boiler is undersized but I can assure you it's not it's a compact 35kw the house is 3 bed with 11 rads, 4 of which are small singles.
I have tried applying f5 ( sludge remover) which has been in a week with no joy ( it has a filter and was originally flushed). Now 2 of the problem rads are in a room which kind of drops down a foot or so lower than the rest of the downstairs the other is in the opposite room (which has 3 rads) 2 are fine.
I have tried bleeding,balancing etc, incidentally the old system heated up fine, all rads have trv's except the bathroom rad.
My next step is 2 swap the flow and return around and try draining the system.
Any advice is greatly appreciated, I have not come across this before whe the heating is worse after converting.
Thanks everyone.
