hi, i'm leaving the house for a bit in december. the central heating has an outside boiler with an exterior thermostat to prevent it from the frost.
from my past experience things i turn off, often dont want to start up and work again. so would it be a good idea to set the inside house timer to activate the boiler for say five minutes a day to start heating the water and then just switch off, just to keep the system active?
or would that just be a waste of gas?
thanks for any advice.