I'm planning to leave a house unoccupied over the winter and popping round to check on it is not an option thanks to the distance. Hot water is supplied on demand from the boiler, so that's not a worry. Mains water I'll turn off at the stop cock and leave taps open to allow for expansion so I'm happy with that.
Heating system is another matter. One option is to drain the heating system, but I've raised that in a previous thread. Another option is to leave the heating running but that's just expensive/wasteful, even tuned down low. Final option is fitting some sort of frost protection circuitry which is where I could use your help.
In another, more local, property I manage which has a heat only conventional boiler, it's fitted with an external frost stat which kicks in at an unknown temperature, and a pipe stat to shut it off when the return hits around 10C. This appears to work.
Boiler in the abandoned house is a 2 year old Viessman Vitrodens 100-W combi controlled by a wireless controller beyond my comprehension, but it works to heat the house, not protect the pipework. It has a boiler frost protection function (too cold, fires up, heats itself, doesn't run the pump, shuts off).
My current thoughts are to wire in a frost/pipe stat pair to the terminals where an old school room thermostat can be connected akin to the system I'm familiar with. However, frost stats I found with a quick search are internal rather than external. So, if I were to fit a Drayton RTS3 in the coldest part of the house, do I need to think differently about what temperature to set it? Would I still set it to kick in when the air temperature drops below 5C and the pipe stat below 10C? I think yes, since the pipework can't be cooler than air temperature.
Your thoughts please.
Heating system is another matter. One option is to drain the heating system, but I've raised that in a previous thread. Another option is to leave the heating running but that's just expensive/wasteful, even tuned down low. Final option is fitting some sort of frost protection circuitry which is where I could use your help.
In another, more local, property I manage which has a heat only conventional boiler, it's fitted with an external frost stat which kicks in at an unknown temperature, and a pipe stat to shut it off when the return hits around 10C. This appears to work.
Boiler in the abandoned house is a 2 year old Viessman Vitrodens 100-W combi controlled by a wireless controller beyond my comprehension, but it works to heat the house, not protect the pipework. It has a boiler frost protection function (too cold, fires up, heats itself, doesn't run the pump, shuts off).
My current thoughts are to wire in a frost/pipe stat pair to the terminals where an old school room thermostat can be connected akin to the system I'm familiar with. However, frost stats I found with a quick search are internal rather than external. So, if I were to fit a Drayton RTS3 in the coldest part of the house, do I need to think differently about what temperature to set it? Would I still set it to kick in when the air temperature drops below 5C and the pipe stat below 10C? I think yes, since the pipework can't be cooler than air temperature.
Your thoughts please.