Hi,
I currently have a Boilermate 2000 (BM185) Thermal store attached to a Potterton Suprima 60L in my town house. I've noticed recently that the boiler goes through phases of continually being called for heat even though the store temperature is above the satisfied temperature.
As the store only ever achieves 69C, Gledhill and two other independent plumbers have said they believe the internal pipework within the tanks of the BM2000 are blocked/restricted and it cannot be serviced. They believe the boiler is delivering a higher temperature than 70C back to the store, but it's not able to transfer the heat inside it. All have commented the store temperature should be in the high 70's. So I'm now looking at replacement options.
The BM2000 is located in an airing cupboard on the top floor of the house, and the boiler is located in the kitchen. It's connected to 13 radiators of various sizes. We have a family bathroom and two en-suite shower rooms which both contain thermostatic mixer showers. We both appreciate the mains pressure hot water the BM2000 delivers. At the moment there is only me and my wife in the house, but we are thinking staying here long term and numbers could increase. We've got a Nest thermostat which we'd like to keep.
I've had two plumbers offer advice on possible solutions, and both are different.
One plumber recommended we go for a Vaillant Unistore 260L connected to a Vaillant ecoTEC plus 428 boiler. He said while the Suprima is ok, it would struggle connected to the Unistore. I've read that the Unistore and boiler should be connected to a Vaillant controller using eBus, however my plumber said that wouldn't make sense with the Nest thermostat.
The other plumber suggested we consider the Vaillant ecoTEC plus 937. He felt this would be a good solution to our needs. He also suggested the Viessmann range of boilers as well, but I can't remember the details. He commented there would no need for motorised valves if we used them. He said Viessmann were a very good brand and he'd had no callouts on any of the many he had installed.
We're currently in the process of renovating our kitchen, so now it's tempting to consider getting the boiler moved to our garage which is only a few feet away, but I think it would be expensive to get that done.
Would appreciate some help/advice on the above as I wasn't expecting to get two completely differing views on the approach.
Many thanks in advance.
I currently have a Boilermate 2000 (BM185) Thermal store attached to a Potterton Suprima 60L in my town house. I've noticed recently that the boiler goes through phases of continually being called for heat even though the store temperature is above the satisfied temperature.
As the store only ever achieves 69C, Gledhill and two other independent plumbers have said they believe the internal pipework within the tanks of the BM2000 are blocked/restricted and it cannot be serviced. They believe the boiler is delivering a higher temperature than 70C back to the store, but it's not able to transfer the heat inside it. All have commented the store temperature should be in the high 70's. So I'm now looking at replacement options.
The BM2000 is located in an airing cupboard on the top floor of the house, and the boiler is located in the kitchen. It's connected to 13 radiators of various sizes. We have a family bathroom and two en-suite shower rooms which both contain thermostatic mixer showers. We both appreciate the mains pressure hot water the BM2000 delivers. At the moment there is only me and my wife in the house, but we are thinking staying here long term and numbers could increase. We've got a Nest thermostat which we'd like to keep.
I've had two plumbers offer advice on possible solutions, and both are different.
One plumber recommended we go for a Vaillant Unistore 260L connected to a Vaillant ecoTEC plus 428 boiler. He said while the Suprima is ok, it would struggle connected to the Unistore. I've read that the Unistore and boiler should be connected to a Vaillant controller using eBus, however my plumber said that wouldn't make sense with the Nest thermostat.
The other plumber suggested we consider the Vaillant ecoTEC plus 937. He felt this would be a good solution to our needs. He also suggested the Viessmann range of boilers as well, but I can't remember the details. He commented there would no need for motorised valves if we used them. He said Viessmann were a very good brand and he'd had no callouts on any of the many he had installed.
We're currently in the process of renovating our kitchen, so now it's tempting to consider getting the boiler moved to our garage which is only a few feet away, but I think it would be expensive to get that done.
Would appreciate some help/advice on the above as I wasn't expecting to get two completely differing views on the approach.
Many thanks in advance.
