I just did some greps in my heating log and found some interesting numbers.
Heating hours (number of hours when DHW and/or zone(s) are calling for heat):
- 320.63 total heating hours (= ~13.4 days).
- 7.02 hours where oil was supplying the heat (2.2% of total)
- 98.53 hours where the Tarm was supplying heat (30.7% of total)
- 215.08 hours where the tank was supplying the heat (67.1% of total)
- 216.17 hours where the Tarm was heating the tank.
I can't fairly say that only 2.2% of my total btus came from oil because the oil heated water must have been hotter than the tank heated water on average, but I think the numbers are interesting nonetheless.
Heating hours (number of hours when DHW and/or zone(s) are calling for heat):
- 320.63 total heating hours (= ~13.4 days).
- 7.02 hours where oil was supplying the heat (2.2% of total)
- 98.53 hours where the Tarm was supplying heat (30.7% of total)
- 215.08 hours where the tank was supplying the heat (67.1% of total)
- 216.17 hours where the Tarm was heating the tank.
I can't fairly say that only 2.2% of my total btus came from oil because the oil heated water must have been hotter than the tank heated water on average, but I think the numbers are interesting nonetheless.
