Teardrops n Tiny Travel Trailers

I use a triton 5l on demand for a wet suit heater during winter dives. I am currently planning to use it for my CT conversion. I'm planning on mounting it outside and run the hot water back in for the shower and sink.

still love my $4.00 32 cup coffee maker from Goodwill. Hot water on demand for washing dishes, stinky body parts and yes you can even use it for hot chocolate, hot tea, and for the coffee singles.

We use a Triton instant hot water heater, plumbed and mounted on the back door of our GNAT 5X8 cargo trailer conversion http://www.tnttt.com/viewtopic.php?f=42&t=57876. It works really well, and supplies instant (after about 15 seconds) hot water to both our kitchen and shower. I plumbed it so park-side water comes in to the heater (with a "t" so cold-water can go to sink and shower), then split the hot water output to the sink and the shower... At 2.5 Gallons Per Minute, it never get's dcold and never runs out. I use a 12ft propane rubber hose to run from our propane tanks on the tongue to the heater...Here are a few images of the mounted heater:

https://lh3.googleusercontent.com/-jXT-Mnzuy_Y/Um2Bx8oqLAI/AAAAAAAAQKc/o9Ui6rVHnYU/s640/100_2387.JPG

http://goodnuffandtuff.files.wordpress.com/2013/11/1920238_742868005747887_1433120323_n.jpg?w=660&h=495

http://goodnuffandtuff.files.wordpress.com/2013/11/1377226_742867985747889_885949552_n.jpg?w=660&h=495

Ran across this 'iHeat Hot Spot' instant hot shower that might work for camping when water & electricity are available.
I'd never seen one before. Any thoughts or experience?

http://www.sears.com/iheat-ahsh2500-hot ... 29?prdNo=1

23 amps, electric only....that's a lot of amperage for hot water.