A
ATC
Hello everyone,
Any help that can be offered on this subject will be greatly appreciated, I am not a plumber so I will describe as best I can the situation I am in and essentially the solution that I am after. I am in the final process of finishing the rebuild of our house. Apologies if this description is long winded but I think it better to explain everything so that a proper discussion could be had as my plumber seems to be at a loss.
The system - we have a thermal store (300l) with three inputs -
- thermodynamic - sometimes misleadingly called solar thermal which provides a constant 50-55 degree heat 24 hours a day - this is the lowest (position wise) and switches off when 55 degrees is reached - works the same as the rear section of a fridge in reverse.
- two standard immersion coils - these are used as backups only
- woodburning stove with back boiler - this is linked to the thermal store by a thermostat controlled pump which switches on at 65 degrees - this is the only time that the water in the thermal store leaves the tank, meaning all other outputs are coil based - ho****er, radiators, underfloor heating and the main 300l of the tank only leaves the tank when it is being heated by the woodburner.
The thermal store has all the relevant safety features, expansion tank in the roof and safety valve if anything were to go wrong the problem lies in the fact that with the solar thermal working and not using the woodburner the burner itself is working as a heatsink, as the 300l of the thermal store heats up it automatically heats the closed loop to the woodburner turning the pump on meaning that the woodburner becomes a radiator making the thermo dynamic work overtime and whenever we use any hot water or heating the tanks drops incredibly quickly in temperature.
Is there any advice on how to stop this circuit from heating up and switching the burner pump on? Would a non-return valve work on this (22mm) pipe meaning that the heat is not transferred out of the thermal store therefore saving energy?
Any help that anyone can offer would be hugely appreciated, a random and probably not often met problem but one geeky amateur in Kent would love some help.
Kind Regards,
Andrew
Any help that can be offered on this subject will be greatly appreciated, I am not a plumber so I will describe as best I can the situation I am in and essentially the solution that I am after. I am in the final process of finishing the rebuild of our house. Apologies if this description is long winded but I think it better to explain everything so that a proper discussion could be had as my plumber seems to be at a loss.
The system - we have a thermal store (300l) with three inputs -
- thermodynamic - sometimes misleadingly called solar thermal which provides a constant 50-55 degree heat 24 hours a day - this is the lowest (position wise) and switches off when 55 degrees is reached - works the same as the rear section of a fridge in reverse.
- two standard immersion coils - these are used as backups only
- woodburning stove with back boiler - this is linked to the thermal store by a thermostat controlled pump which switches on at 65 degrees - this is the only time that the water in the thermal store leaves the tank, meaning all other outputs are coil based - ho****er, radiators, underfloor heating and the main 300l of the tank only leaves the tank when it is being heated by the woodburner.
The thermal store has all the relevant safety features, expansion tank in the roof and safety valve if anything were to go wrong the problem lies in the fact that with the solar thermal working and not using the woodburner the burner itself is working as a heatsink, as the 300l of the thermal store heats up it automatically heats the closed loop to the woodburner turning the pump on meaning that the woodburner becomes a radiator making the thermo dynamic work overtime and whenever we use any hot water or heating the tanks drops incredibly quickly in temperature.
Is there any advice on how to stop this circuit from heating up and switching the burner pump on? Would a non-return valve work on this (22mm) pipe meaning that the heat is not transferred out of the thermal store therefore saving energy?
Any help that anyone can offer would be hugely appreciated, a random and probably not often met problem but one geeky amateur in Kent would love some help.
Kind Regards,
Andrew
