Anarita John wrote: ↑Mon Nov 20, 2023 6:47 pm
We have done well so far this Autumn. For the past 3 winters we have kept cosy and warm with our aircon units on heat
However, we will try to be as carbon friendly as possible, only heating the pool when our panels are producing.
Same at my place which is 4-5 c cooler in Autumn and Winter as yours, as I live at 450 m sea level.
As soon as the PV system produces more than 1000 w (7.30 AM at the moment) I switch on the air-con, which means no costs at all to keep the room temperature above 23c in my office and keep the door open to other rooms in the house.
As my house has no insulation at all and large windows this is very important to keep the room temp. high enough to avoid too much temperature losses.
If the room air temperature is 21°C, you should make sure that the surface temperature, for example of the outside walls or windows, does not fall below 18°C. This is because a surface temperature that is too low poses a high risk of heat loss.
Not to forget my self-made hot air heating system which lowers the humidity and brings fresh air in the house, beside increasing the temperature a bit.
It runs independent from power with small PV modules.
Max