We have an indoor geyser but are considering moving this outdoor to save space. We live in a Mediterranean climate with a cold winter day being 5°C (41°F) and summer temperatures generally ranging from 20-25°C (68-77°F). I imagine that the inside temperature is about 5°C (9°F) higher inside than outside during a winter day. In summer things are pretty much the same inside vs outside.
Our geyser is the number one electricity consumer in our household. I am wondering, if we move it outside, how would it affect electricity consumption? Any idea how much it would increase?