propane on demand water heater - Page 2 - SailNet Community
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post #11 of 19 Old 10-10-2009
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As I said before, I've owned and used them in the past and liked them for their convenience.and efficiency. I don't have one now but if I had pressure water I'd think about it at least. If you use one like in the link I posted there is no pilot light so if the fumes are exhausted (not that they are for the galley stove) I can see no problem other than the normal issues with propane. A safe fuel if treated properly.
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post #12 of 19 Old 10-10-2009
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Here's my installation of a Paloma with a custom SS vent. I use it daily, works great and has for years. It feeds hot water to my shower and two sinks.



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post #13 of 19 Old 10-10-2009
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Look for information on the bosch 400-1k. I believe it has a double walled flue, one for air intake and one for exhaust.
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post #14 of 19 Old 10-10-2009
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If you read the label on the Paloma, it says that it is not to be installed on boats, or something to that effect. I haven't seen a good installation yet.
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post #15 of 19 Old 10-10-2009
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moonglow
have you run this install past your insurer?
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post #16 of 19 Old 10-10-2009
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Quote:
Originally Posted by amarinesurveyor View Post
If you read the label on the Paloma, it says that it is not to be installed on boats, or something to that effect. I haven't seen a good installation yet.
Brian
Mine doesn't. A boat in front of me has a similar installation of the same unit.


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post #17 of 19 Old 10-10-2009
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Quote:
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moonglow
have you run this install past your insurer?
We're required to do insurance surveys every 4 or 5 years, can't remember but this one has gone through it twice with not even a comment other than it's my source of hot water.

The boat in front of me that has the same unit went through an inspection last year and they required him to make a small rectangular dish type arrangement below the unit, run the three lines through the base, seal them and make a drain overboard so I suspect I will need to do that at some point but as you can see it will be quite easy on my installation.


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post #18 of 19 Old 10-10-2009
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Quote:
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I haven't seen a good installation yet.
Brian
Please tell me what's wrong with my installation, the lines are continuous to the tank locker. I have an electic shutoff switch to the sealed tank locker. I have it properly vented outside. I have an aluminum backing plate. I would say it's as safe as my propane stove, no?


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post #19 of 19 Old 10-10-2009
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It soulds like your installation may be OK. The model I saw the labe on might have been different, or maybe a different age.
Does yours have a flame failure device that shuts the gas off if the flame goes out?
Is the combustion chamber sealed? I don't think the Paloma is.
Does it have an oxygen depletion sensor that cuts off the gas when the oxygen in the space falls below 95% of the normal.
The flue should be sealed from the unit to the exterior. It doesn't look like yours is.
And, do you have a carbon monoxide detector in each sleeping cabin?
These are some of the things that are considered important for safe operation, from the ABYC Standards for small craft.
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