Just seen this post on another forum:
Quote: There are a number of people who have properties that are unoccupied for long periods in the winter, e.g. holiday homes, people who spend some of the winter abroad, between sales/lettings etc.
In my case I have a little used detached annex(converted stables) that is fully gas centrally heated with a combi boiler. For the past 25+ years I have set the thermostat to ‘frost Stat’ and when temperature dropped to 5C the boiler fired up, CH came on and all was well.
Last year I replaced the boiler with a new Veissmann combi boiler; obviously a condensing boiler and again set it to ‘Frost protection’ which the manual tells me kicks in at 5C. Because the property uses so little gas/electricity I rarely check the meter readings. When a few weeks ago I did check, there had been a big jump in electricity consumption – but not gas. When I checked the room temperature was 10C, as naturally was the displayed water temperature, however the internal pump in the boiler was running – but the boiler not firing. I checked over the next couple of days and it was clear that the pump was running 24/7.
Spoke to my plumber, who assumed a fault but could find nothing wrong. He in turn spoke to the manufacturer who contacted Germany. To cut a long story short it transpires that, on any setting, when the water temperature drops to 8C the pump starts up and it will run continuously until the water temperature reaches 12C. With the boiler not firing this means the pump will run 24/7 all winter. Even now the temperature around 10C internally.
The factory in Germany added that all(most?) manufacturers now use exactly the same software package, so all newish boilers will be the same.(I hesitate to call it a fault).
On MSE we get quite a few cases where the old occupants give closing meter readings, and new occupants moving in some weeks later dispute those readings - could this account for some of those cases??
I now switch off the boiler power unless the forecast is really cold, and put it on every few weeks for an hour or so. Unquote
Would this be possible with any of the Quick Actions with Evohome? Is the above scenario accurate?
Quote: There are a number of people who have properties that are unoccupied for long periods in the winter, e.g. holiday homes, people who spend some of the winter abroad, between sales/lettings etc.
In my case I have a little used detached annex(converted stables) that is fully gas centrally heated with a combi boiler. For the past 25+ years I have set the thermostat to ‘frost Stat’ and when temperature dropped to 5C the boiler fired up, CH came on and all was well.
Last year I replaced the boiler with a new Veissmann combi boiler; obviously a condensing boiler and again set it to ‘Frost protection’ which the manual tells me kicks in at 5C. Because the property uses so little gas/electricity I rarely check the meter readings. When a few weeks ago I did check, there had been a big jump in electricity consumption – but not gas. When I checked the room temperature was 10C, as naturally was the displayed water temperature, however the internal pump in the boiler was running – but the boiler not firing. I checked over the next couple of days and it was clear that the pump was running 24/7.
Spoke to my plumber, who assumed a fault but could find nothing wrong. He in turn spoke to the manufacturer who contacted Germany. To cut a long story short it transpires that, on any setting, when the water temperature drops to 8C the pump starts up and it will run continuously until the water temperature reaches 12C. With the boiler not firing this means the pump will run 24/7 all winter. Even now the temperature around 10C internally.
The factory in Germany added that all(most?) manufacturers now use exactly the same software package, so all newish boilers will be the same.(I hesitate to call it a fault).
On MSE we get quite a few cases where the old occupants give closing meter readings, and new occupants moving in some weeks later dispute those readings - could this account for some of those cases??
I now switch off the boiler power unless the forecast is really cold, and put it on every few weeks for an hour or so. Unquote
Would this be possible with any of the Quick Actions with Evohome? Is the above scenario accurate?
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