Have just had the boiler changed to a Viessmann OV 32 kW
Its primaries connect direct to a thermal store, and the thermostat at the bottom 1/3rd of the store sets the temp of water within.
The stat is set to 60 and a baffle just below halfway gives stratification. (schematic below)
Heating coil is taken off the bottom half and mains pressure DHW of a heat exchanger in Top half
What would be ideal temp to run boiler at ..... Viessmann has digital controls so can set to what I want, previous boiler had only a rotary knob, with no temperature setting or display. ( was set to 3/4 on)
Wondering what is best to benefit from as much condensing mode as is possible.
Only information I can find is a post which states to run boiler at about 10C higher than store stat temp, (i.e. 70C) to stop boiler cycling. Does this seem about right.
.
Its primaries connect direct to a thermal store, and the thermostat at the bottom 1/3rd of the store sets the temp of water within.
The stat is set to 60 and a baffle just below halfway gives stratification. (schematic below)
Heating coil is taken off the bottom half and mains pressure DHW of a heat exchanger in Top half
What would be ideal temp to run boiler at ..... Viessmann has digital controls so can set to what I want, previous boiler had only a rotary knob, with no temperature setting or display. ( was set to 3/4 on)
Wondering what is best to benefit from as much condensing mode as is possible.
Only information I can find is a post which states to run boiler at about 10C higher than store stat temp, (i.e. 70C) to stop boiler cycling. Does this seem about right.
.
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