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Hi, would appreciate some advice please with a central heating issue, please.
The background....
We moved into our 1981 built house in 96, at that time a standard 3 bedroom end terrace with a Potterton boiler. In 2001 we added a side extension, with a family room, utility room and toilet. For the next few years this family room with its well insulated walls and large rad was the warmest room in the house.
In 2009 we had our attic converted into a bedroom and shower room. As part of this work our old Potterton boiler was replaced with a Vokera 29HE Compact combo boiler. Over the next few years we noticed a drop off in the performance of the family room rad until earlier this year it was virtually cold. In the spring I raised this with a heating company who recommended a power flush.
Since that power flush and colder weather now, it’s only recently we have fully fired up the central heating. And now most of the downstairs rads are struggling to generate heat, even with thermostat and lock shield valves fully open. Upstairs is fine though.
I’ve tried balancing the system. The lock shield valves on all the upstairs rads are not even open a full turn. But still I’m struggling to get downstairs rads up to heat. The rad in the family room, which I suspect is at the end of the system, is stone cold.
We have 7 rads downstairs, 4 upstairs, 2 in converted attic.
I’m at my wits end now. The power flush was expensive, and I’m wary of throwing more money at the problem without sone idea of possible cause.
Thanks
The background....
We moved into our 1981 built house in 96, at that time a standard 3 bedroom end terrace with a Potterton boiler. In 2001 we added a side extension, with a family room, utility room and toilet. For the next few years this family room with its well insulated walls and large rad was the warmest room in the house.
In 2009 we had our attic converted into a bedroom and shower room. As part of this work our old Potterton boiler was replaced with a Vokera 29HE Compact combo boiler. Over the next few years we noticed a drop off in the performance of the family room rad until earlier this year it was virtually cold. In the spring I raised this with a heating company who recommended a power flush.
Since that power flush and colder weather now, it’s only recently we have fully fired up the central heating. And now most of the downstairs rads are struggling to generate heat, even with thermostat and lock shield valves fully open. Upstairs is fine though.
I’ve tried balancing the system. The lock shield valves on all the upstairs rads are not even open a full turn. But still I’m struggling to get downstairs rads up to heat. The rad in the family room, which I suspect is at the end of the system, is stone cold.
We have 7 rads downstairs, 4 upstairs, 2 in converted attic.
I’m at my wits end now. The power flush was expensive, and I’m wary of throwing more money at the problem without sone idea of possible cause.
Thanks
