Any problem with tapping off the hot water in the house?
You can run it directly off and just wait for the hot water to get to the
spigot when needed. If it's not a far run, this will work just fine.
You can also use a little recirculator on the hot water line to keep hot
water in the line, instantly available at all times. This is something
that's quite nice in the house as well. Some friends of ours have this on
their house, and the water is hot instantly at all times. It's really quite