I thought I'd start a separate thread for this to avoid confusion.
I've found that heating my hot water (megaflow 250l indirect) at 80 degrees seems to provide the fastest heating time, and reduces (if not eliminates) cycling on my boiler (Vaillant 438).
I have a two heating zones and one DHW zone. The VR65 does not officially support two heating zones, but understand that two zone valves could be used with it. Putting that aside for a second, and if I only had the one heating zone - can the VR65 be used to adjust the flow temp on the boiler to 80 degrees for DHW, whilst reducing to whatever is set on the dial for CH, and still function with standard programmers and programmable room thermostats. Im not (currently) interested in weather compensation. Or would I have to change my programmers / thermostats to vaillant controls ?
Many thanks.
I've found that heating my hot water (megaflow 250l indirect) at 80 degrees seems to provide the fastest heating time, and reduces (if not eliminates) cycling on my boiler (Vaillant 438).
I have a two heating zones and one DHW zone. The VR65 does not officially support two heating zones, but understand that two zone valves could be used with it. Putting that aside for a second, and if I only had the one heating zone - can the VR65 be used to adjust the flow temp on the boiler to 80 degrees for DHW, whilst reducing to whatever is set on the dial for CH, and still function with standard programmers and programmable room thermostats. Im not (currently) interested in weather compensation. Or would I have to change my programmers / thermostats to vaillant controls ?
Many thanks.