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gstraub
Joined: 02 Aug 2017 Posts: 116 City/Region: Callao
State or Province: VA
C-Dory Year: 1998
C-Dory Model: 22 Cruiser
Vessel Name: EnDoryFun
Photos: EnDoryFun
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Posted: Wed Dec 12, 2018 11:17 am Post subject: Re: propane vs butane |
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JOHN C wrote: | The problem with the solenoid idea is that if anything in the cabin using propane is used all the time, like heat or refrigeration, the solenoid is on all the time which pretty much eliminates the reason for having it in the first place. |
This does not have to be the case. In our sailboat we have propane sensors in the bilge. If propane is detected, an alarm is triggered and the solenoid is shut down by the system to prevent additional propane from flowing. _________________ Gerhard |
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smckean (Tosca)
Joined: 18 Jan 2014 Posts: 975 City/Region: Guemes Island (Anacortes)
State or Province: WA
C-Dory Year: 2005
C-Dory Model: 25 Cruiser
Vessel Name: Tosca
Photos: Tosca
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Posted: Wed Dec 12, 2018 1:09 pm Post subject: |
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Quote: | Where? I'd like to be able to refill mine. |
At home
You can buy an adapter on Amazon that connects the 1 pound canister valve to a standard 5 gallon propane tank valve. You put the empty 1# canisters in the freezer; then fill them by tipping the 5 gallon tank upside down (liquid propane flows into the 1# canister). This fills the 1#'er about 65%. Put them back in the freezer; then fill them again.
One must be careful during the 2nd filling since you can put more than a pound of propane in the canister. You get a feel for this after a while. If you do get more than a pound, you can release the extra via the pressure relief value on the 1# canister. You can also be satisfied with the 65% (a guess) fill amount with a single filling.
I have 8 to 10 of these 1# canisters I've saved over the years. I cycle thru them and fill them all every 2 years or so. |
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journey on
Joined: 03 Mar 2005 Posts: 3598 City/Region: Valley Centre
State or Province: CA
C-Dory Year: 2005
C-Dory Model: 25 Cruiser
Vessel Name: journey on
Photos: Journey On
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Posted: Wed Dec 12, 2018 5:18 pm Post subject: |
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Just to clarify something: butane is heavier than air, as is propane. In fact, butane is 2.08 times heavier than air.
That said, we (I sometimes make hot water for coffee) have used a single burner butane stove for years on Journey On. We keep the butane cartridges inside the cabin, haven't had a problem yet. Yes, that should drive Bob wild. The Wallis takes too long to heat water in the morn, but the butane stove is great for fast response.
We do pull the butane cylinders out when we're at home and store them in the garage. And you should buy than at an Asian food store, because they're ~$1.50.
Boris |
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SEA3PO
Joined: 02 Nov 2003 Posts: 1835 City/Region: Chester
State or Province: CA
C-Dory Year: 2003
C-Dory Model: 22 Cruiser
Vessel Name: SEA3PO
Photos: SEA3PO
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Posted: Wed Dec 12, 2018 7:03 pm Post subject: |
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I have a propane system on my boat...I have a propane stove top and a fireplace style heater.... both work great... but it is important that the USCG approves the plumbing and all the vents....it is a pain but worth the effort in the event your boat catches fire... each device requires it's own feed line ...no T fittings ...it must have a solenoid valve for each line...it must have a manual on/off valve in each line...I had my propane lines custom made...
I also have an aluminum propane tank in my lazaret I made an extended bottom so the tank fits deep in the lazaret...I vent off the bottom of the propane locker to a overboard discharge...nice and clean...and USCG approved.
You can see pictures of my system and fiberglass lazaret bottom on my pictures page...
Joel
SEA3PO |
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pcg
Joined: 31 Aug 2018 Posts: 411 City/Region: Sherwood
State or Province: OR
C-Dory Year: 1999
C-Dory Model: 22 Cruiser
Vessel Name: C-Quest
Photos: pcg
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Posted: Wed Dec 12, 2018 8:46 pm Post subject: |
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SEA3PO wrote: |
I also have an aluminum propane tank in my lazaret I made an extended bottom so the tank fits deep in the lazaret...You can see pictures of my system and fiberglass lazaret bottom on my pictures page...
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Thanks Joel. That's a great idea and well-executed. More food for thought... _________________ Paul |
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thataway
Joined: 02 Nov 2003 Posts: 20875 City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
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Posted: Wed Dec 12, 2018 10:17 pm Post subject: |
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Quote: | We keep the butane cartridges inside the cabin, haven't had a problem yet. Yes, that should drive Bob wild. |
Nah, I'm just not willing to take the chance. I experienced the first Propane explosion on the night of July 3 1947. I was 11 years old. There were only three marinas in the Los Angeles area, and this was the first Transpac after WWII. It is what is now 22'nd street landing in San Pedro. I was sleeping in the cockpit of my dad's boat, and we were on hand to watch the start of the race the next morning. About 11 PM, I awoke to an explosion--and fire at the end tie. The boat was named "Hawk" and belonged to one of the Hollywood stars. She was about 70 feet long, and rigged as a cutter--a little smaller than Windward and Patolita, but very similar. Seared on my memory was the owner's wife running down the dock, screaming, her nightgown ablaze. The Hawk burned to the waterline. I don't know if the owner's wife survived. Many years later, I was walking down the gangway to my boat in Alamitos Bay, and a power boat exploded one gangway over. The owner was on the flying bridge--and ended up in the water. He survived. There was no fire. A close friend, after a hurricane, was putting one of the cartridges into his portable stove, to heat some soup. Because the power was out--there was a candle burning in the kitchen. All of the butane came out with a rush, when he pushed the canister into the stove and the seal failed. He had about 60% body burn. I sat with his wife daily in a burn unit for over 6 weeks. He was on dialysis for renal failure--also had some pulmonary damage. But he survived and is still alive today. In my own practice I was called to treat kidney failure in two patients who had burns from propane explosions.....
Just not willing to take the chance. The solenoid valves are not 100% fail safe. One of my friends had two of the sensors (as I did--one under the stove, and one in the bilge.) His propane system developed a leak--explosion and fire--never did find out why the sensors didn't shut off the valves--but the boat was lost--they survived. _________________ Bob Austin
Thataway
Thataway (Ex Seaweed) 2007 25 C Dory May 2018 to Oct. 2021
Thisaway 2006 22' CDory November 2011 to May 2018
Caracal 18 140 Suzuki 2007 to present
Thataway TomCat 255 150 Suzukis June 2006 thru August 2011
C Pelican; 1992, 22 Cruiser, 2002 thru 2006
Frequent Sea; 2003 C D 25, 2007 thru 2009
KA6PKB
Home port: Pensacola FL |
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