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post #3 of Old 07-12-2010
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Originally Posted by cghubbell View Post
After much deliberation I have given up on building a propane locker in my CS27. It would take up too much locker space that I need for other purposes. With that in mind, I need to improve my "tank on the stern rail" configuration.

At the moment, I have a rubber gas lin which exits my fiberglass cockpit coaming at the stern with a lovely GOB of 5200. It looks awful and over the years has cracked, and no doubt leaks.

Most of what I can find on-line for gas standards applies to propane lockers, and doesn't apply to stern rail configurations. I'd like to make sure everyhing is as safe and well thought out as possible. With that in mind I have a few questions I'd appreciate hearing "best practices" on...

- What is the right way to have a flexible gas hose exit the fiberglass (to reach the external tank) and be protected from chafe? I've seen lots of wire "glands", but it seems like they would (1) be too small for a gas line, and (2) I don't want to compress the line, do I? Those glands are water tight by compression.
Get a bulkhead gas-proof fitting for the gas line. This will be much better and easier to maintain. They look like this:

photo courtesy of, click photo to see product page there.

- Is there any special type of hose or fittings or treatment I need to consider for the gas line as it is exposed to the elements vs. always being protected in a locker? My current hose is showing some signs of UV damage (drying out), although minimal. Note that I am in fresh water, although future brief salt water is a dream.[/quote]

Fit some cable loom over the gas line where it is exposed. This will protect it from chafe and UV damage.

- I'm assuming I don't need to use a electronic gas relay / valve with the tank on the rail since I just use the manual valve for on/off. Is this right?[/quote]

Don't need to have a gas relay/solenoid setup, though having one with a gas alarm is a good idea on a boat. Getting the gas alarm by itself would be a wise idea. This one can be used as just an alarm, but does have a switch for a solenoid if you decide to add one later.

photo courtesy of

- Any other "gas on the rail" best practices you can share would be appreciated. I'm ripping it out now and will be replacing it soon, so all design recommendations are appreciated.

Thank you in advance,
See below....

Originally Posted by sailpower View Post
I’ve always been told that the purpose of the solenoid shutoff is so that you close it first and allow the gas in the line to burn out before you secure the stove/cooktop. Saves having to go out to the cockpit before you turn the stove/cooktop off.
You can easily achieve the same purpose by leaving the burner going and then going out to shut the main gas valve off and then coming back in to shut off the burner. Not quite as convenient, but does end up with the same result, and its what I do on my boat. The tank valve is shut off unless I'm actually about to use the stove.


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Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

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Last edited by sailingdog; 07-12-2010 at 10:19 AM.
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