Steve,
Is the hot water more for cooking or showering ? I have a couple of concerns with instant gas heaters for boats but not the obvious big bang worry. My feeling being that with today', bilge sniffers, in
line pressure gauges and/or electrical switch gear, gas is no longer the bogey man that it once was. My concerns are more to do with oxygen depletion and water use not to mention the amount of heat those things generate when they are running. Also, unless you find one that is genuinely marinised then corrosion is going to rear it's ugly head someday.
Showers really are a bugger, aren't they ? Unless you are permanently attached to a dock with water, have huge water tanks or a watermaker showers and boats make strange bedfellows. On my previous boat I adapted a hand pressurised tank. Required boiling a kettle of water but then was dead easy. With Raven I'm putting together a similar concept but instead of hand
pump I'm using a submersable 12v
pump. Still need to boil the water first but I don't find that a problem. Others may think it's to much work. With a
pump the thing will use more water because of the increased pressure but the quantity will still be small anough to manage. One great advantage of this system is that because you have to fill the tank before each shower water used is strictly rationed by the amount the tank holds.
Hope that's of some small help.
Andrew
). Before our kids came along we backpacked a lot so she doesn't require unlimited water in a stand up shower and therefore your tank system might work just fine.
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