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post #11 of 27 Old 10-25-2012 Thread Starter
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Re: Updating Unique Propane Tanks

6 1/2" in diameter, 14" from the bottom to the center of the valve opening. I'm in agreement with Mitiempo about re-fitting the housing. I've never done anything like this before and I'm worried because of the tight specs needed in Propane systems. It just means more research for me.

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post #12 of 27 Old 10-25-2012
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Re: Updating Unique Propane Tanks

So where is that locker in the pic? In the lazarette? And where is the high pressure regulator?

The safest practice (according to ABYC) is to have the bottle AND the regulator in a locker. The chamber has a vent at the bottom TO THE OUTSIDE of the boat, to harmlessly allow any leaked propane to vent. The locker should otherwise be sealed.

Is there room in the aft of the Cal to fit a new locker than contains two modern bottles and a regulator with switchover valve? You're also supposed to have a solenoid valve in the LP line.

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Re: Updating Unique Propane Tanks

So where is that locker in the pic? In the lazarette?
No- it sits upright in the stern part of the cockpit, behind the tiller, between the cockpit drains. Picture attached.

And where is the high pressure regulator?
Good question. I haven't traced the hoses, but my best guess is that it is just on the other side of the cockpit stern wall. I'll look tonight.

The safest practice (according to ABYC) is to have the bottle AND the regulator in a locker. The chamber has a vent at the bottom TO THE OUTSIDE of the boat, to harmlessly allow any leaked propane to vent. The locker should otherwise be sealed.
...Interesting....I do believe there is a vent leading outside. Full report coming.

Is there room in the aft of the Cal to fit a new locker than contains two modern bottles and a regulator with switchover valve? You're also supposed to have a solenoid valve in the LP line.
There is not enough room for a 10 lb tank if you put it in a locker. It would cover one of the cockpit drains. I do have a solenoid valve.
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post #14 of 27 Old 10-26-2012 Thread Starter
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Re: Updating Unique Propane Tanks

Pictured here is what is on the other side of the locker. It's buttoned up pretty good. To the left is the transom, to the right is the cockpit wall. The two hoses coming out of the bellows are the propane line and the DC to the solenoid, which is located in the Galley. The valve has to be in the white cylinder. There is not a vent. I'm clearly limited to how high I can move this whole contraption. I get the feeling that this is one of those issues that the PO passed the buck on to me. One of many, to be sure. I've tackled most of the others.
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Re: Updating Unique Propane Tanks

Good lord, is that a car driveshaft boot? Very creative!

What I am wondering is if you could enclose a space in that locker, making a box, with a lid. One or two propane bottles and the regulator would go in the box, all inside the locker. You can buy the boxes off the shelf (expensive!) or make it yourself.

My system uses two of these little tanks. Height is 1ft.

WORTHINGTON Cylinder at West Marine

At this stage I'd give the PO high marks for creatativity, low marks for safety. He's created a sealed chamber for the bottle and regulator (good!) but without a drain to the outside of the boat, any major leak will dump the gas into either the cockpit or the bilge (both very dangerous possibilities).

If he had run a hose from the bottom of the bottle holder, to a through hull vent with a moderate down gradient in the hose, it wouldn't be too bad.

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Last edited by MarkSF; 10-26-2012 at 01:00 PM.
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Re: Updating Unique Propane Tanks

I agree, Mark. I do like that short tank, but I think it would cover a cockpit drain. What if I repurposed the port drain for propane and built a new locker over it, then cut a new hole in the cockpit sole for the drain hose? Would it be sacrilege to have offset cockpit drains? Or, with the low clearance of that tank, I could build the locker 6-12" or so off the sole, and leave the drain.

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post #17 of 27 Old 10-26-2012
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Re: Updating Unique Propane Tanks

I think you have room to build a locker on either side of the tiller for a larger tank than you currently have. Below are some pics of an example, on a Cal I believe. By raising the tank and attaching it to the cockpit end or side the drains stay clear.

Also for your drain I think I would go through the transom as it has to exit above the waterline.
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1a.jpg   2.jpg   3.jpg  

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Re: Updating Unique Propane Tanks

That is sweet! Gears are turning inside my puny mind......

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Re: Updating Unique Propane Tanks

What I was thinking of was putting the tank in one of the lazarettes. Is there space?

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Re: Updating Unique Propane Tanks

That locker in the pics is built of 2 layers of doorskin and epoxy, glass covered.

I used to have the link but could only find the pics. I am building a similar one.

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