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Ok will try keep this short.. basically our plumber did a runner left us with a poorly plumbed system and left us to pick up the pieces.
Having a large supply of free wood on our doorstep we thought it logical to get a log burner with back boiler installed. We were quoted the following
We are a family of 4 in a 4 bed house.
Bosch Greenstar 18/25 Oil boiler - plumbed in as pressurised system.
210Litre Thermal store. (2 internal coils, one for DHW one for boiler to heat Thermal store indirectly)
Boiler was plumbed to the heat store via the secondary coil so not heating mass direct
Log burner back boiler (17kw to boiler) installed, heating via gravity to thermal store mass with basic heat leak circuit.
The logic applied to the heater control:
Hot water - stat on thermal store actuates valve to heat thermal store only(Boiler+Pump activates and water diverts through thermal store coil)
Central heating - room stat actuates valve to diver water direct to central heating.
Now - this isn't what we wanted as we wanted the log burner to supply our hot water and central heating.
As above the log burner only heats the mass of thermal store which in turn gives us hot water, and the central heating is heated from the boiler direct. There is no link between the thermal store and the central heating currently.
Current config
Boiler - heats central heating and/or thermal store for hot water
Log boiler - heats thermal store for hot water only
Can anyone help here on how i correct this?
Basically i want the log burner to be our primary source for hot water and the boiler be our secondary source here.
What do i need to do to correct this to make it right without starting again without spending unlimited cash here, the H2 Panel looks like it offers all the logic i would like but how much to install. Your thoughts appreciated.
Having a large supply of free wood on our doorstep we thought it logical to get a log burner with back boiler installed. We were quoted the following
We are a family of 4 in a 4 bed house.
Bosch Greenstar 18/25 Oil boiler - plumbed in as pressurised system.
210Litre Thermal store. (2 internal coils, one for DHW one for boiler to heat Thermal store indirectly)
Boiler was plumbed to the heat store via the secondary coil so not heating mass direct
Log burner back boiler (17kw to boiler) installed, heating via gravity to thermal store mass with basic heat leak circuit.
The logic applied to the heater control:
Hot water - stat on thermal store actuates valve to heat thermal store only(Boiler+Pump activates and water diverts through thermal store coil)
Central heating - room stat actuates valve to diver water direct to central heating.
Now - this isn't what we wanted as we wanted the log burner to supply our hot water and central heating.
As above the log burner only heats the mass of thermal store which in turn gives us hot water, and the central heating is heated from the boiler direct. There is no link between the thermal store and the central heating currently.
Current config
Boiler - heats central heating and/or thermal store for hot water
Log boiler - heats thermal store for hot water only
Can anyone help here on how i correct this?
Basically i want the log burner to be our primary source for hot water and the boiler be our secondary source here.
What do i need to do to correct this to make it right without starting again without spending unlimited cash here, the H2 Panel looks like it offers all the logic i would like but how much to install. Your thoughts appreciated.
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