SpaceBus
Minister of Fire
Good info here, but do keep in mind that when I called three plumbers to get my 80 gal HPWH installed 5 years ago, two of them bent my ear at length about how awful they were, one refused to install it, the other said I would be calling him back in a year to take it out, and I would have to pay him twice.
The third guy said sure, did it, and cashed the check. LOL.
What don't they like about it.