I like the idea, but you would have to be careful and frugal with your water supply while boondocking. That 10-15 second delay would waste valuable water unless you captured it and recycled it. Small price to pay for what you have, though.
Just looked on the Lowes website and they list the 1600H LP unit for $741 (with the possibility of a $300 tax rebate). If I was fulltiming I would consider it for my Sandpiper, but for the time being I'll just keep my Suburban 6 gal. However, I'm thinking seriously about putting one in here in my stickhouse. I'm on municipal water so I would have hot water when the power is out. And it's got to be cheaper than the unit I have now.
My driver's license says my name is "Jeff"
2000 Chevy 2500 4/4 6.0/3.73
2002 FR Sandpiper 30FKSS
DD (Darling Dachshund)