30 tubes/120L, short run of 10mm pipe, DTO 6, DTF 3.5 (not changed from summer)
Sunny after a sharp frost, then sunny at lunchtime
At 9am, top of tank approx 46C, evening 48C
One washing machine load, one dishwasher load and one shower.
There is the potential for slight residual heating from boiler overrun when room stat switches off, but the cylinder thermostat was off all day. I'm not sure if the overrun goes through radiators or cylinder when both stats are off.
Probably a free day of hot water then, not bad for 10 days before Winter Solstice.
Paul
