My goes up to 80-85, and stays there.. Almost 90% of the year.. Only very HOT summerdays can convince it to go up to 90 C
Depending on the outside temp, of course.. It reaches 80 in a few minutes.. Never timed it really.. I would guess 2-3 minutes on hotter days, and maybee 10 minutes in the winter..does it take forever to get to 80*C?