It just came to me…..they sell all these various types of hot water producing device for camping, for showers. 90% require a battery powered pump, which can on average produce 60 gallons of hot water before you need 4 new DD batteries. Here is a good option (http://www.hotcampshowers.com/zodi_p..._water_heaters
) Most operate on disposable propane containers, although some work with larger refillable ones like for a grill.
One stands apart from the rest, it is a metal container that holds 3 gallons of water (http://www.hotcampshowers.com/inc/sdetail/453
), it can be heated up by setting on a campstove, or a special burner that comes with it. The reviews say it is easier to heat water in large pot on stove or fire and then fill it up. What is cool about it is then you pump it up to pressurize it by hand (no batteries, no pump).
So I start thinking…..hey I got two 5 gal containers that pressurize for home brewing (korny kegs)….they use CO2, my little CO2 tank last for kegs and kegs (not sure how many), but more that 12 (i.e. 60 gals) I would think. In addition, if I added super hot water to one, and cold to the other, you could blend for the perfect temp…..so experimentation will begin tonight.
CO2 tank doubles as a way to re-inflate my tires in Jeep as you all know. In addition I could rig the kegs/containers to be pressurized by my small 12V air compressor that is for the tires as well…..
So the PRO's I'm thinking are....
potential to dial in perfect temp
more gallons than the one i could buy
Kegs double as fresh water storage/transportation
I already own everything needed
have to heat and then transfer water
2 kegs are bulkier than the commercial options
NOT "unlimited" hot water (but even the "unlimited" ones only have a certain amount of temp gain, may require two cycles prior to desired temp.