Well, i had ice in the bottom of the tank which wouldve chilled it a bit and i didnt leave enough time to fill tank to the top, well half actually. It was hot to touch in the tank.
Got on the first job was cold, i was like

But then the next one i noticed the pole was warm, and the hot was coming outta the brush head, not boiling but it was hotter than warm. Must of taken a while to get through the hosereels.
Must say its a joy to use and stayed warm all day. Ive just bought some lagging so im going to lagg the tank this weekend then fill it to top with hot and it should last most of the day, its was still warm after 6 or so hours.
I can see why you guys go on about hot so much, those first few houses this morning were a joy...and yes it is quicker.
I know somedays i wont be able to do this as ill have some left in it, but its nice to see wht its like.
The reason i thought about doing it like this is because vv8edd an ionics guy said he only heats his up in the morning and it stays hot all day, and like i say it did last around 6 hours warm, if i could get it real warm it would stay hotter for longer, especially with the lagging.