I have a question about the programming a solar, gas boosted in slab system with a 800 lstorage itre tank.
Is it better to:
A) set the temperature 'high' during the day and turn it down at sundown - to take advantage of the water being heated by the solar system amd warming the house and for the evening, or
B) run the system to heat in the morning, turn off during the day, and then kick in before we come home from work.
B was recommended by the installer, but I'm thinking that It would be using more gas, and not taking advantage of building the thermal mass in the slab during the day.
Your thoughts...?