Boiler efficiency
On Sunday, 29 December 2019 13:01:26 UTC, Tim Lamb wrote:
Probably much covered but a fresh issue for me:-)
Viessman modulating system boiler. Reasonably well insulated house.
Underfloor heating controlled by 10 (yes 10) thermostats and DHW given
priority.
In the excitement of moving house, I hadn't given much thought to time
clock settings and left 24 hour operation selected. With the relatively
warm Winter weather I have realised that the boiler spends most of the
burn time on the lowest of the 5 available settings.
Does this matter? I can cheat by limiting the CH on periods to provide a
bigger load. Any thoughts?
Low burn is its most efficient mode.
NT
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