Ex Machina 384 Posted August 28 Share Posted August 28 1 hour ago, K4309 said: Yes, it goes bottle, solenoid, regulator. BUT, technically (legally) you aren't able to replace the solenoid yourself. You need to get a certified gas fitter to do it, and pay the $1,000 to re-issue the gas certificate. It is questionable if you require a solenoid for safety purposes. Some gas fitters say you don't, some say you do. That is with respect to having two gas sniffers interlinked with a solenoid. Of course if you want want so you don't have to physically go to the gas locker to turn the gas off, then knock yourself out. Oh, and if any other part of your system isn't complaint with the current regs, a gas fitter will make you change the whole lot so that he can re-install your solenoid. That includes replacing your stove if it doesn't have auto-flame out on all elements. And replacing any flexible hose that are older than 7 years. Have a solenoid and don’t trust it , you can only blow up once . We always turn it off at the bottle 1 Quote Link to post Share on other sites
harrytom 679 Posted August 28 Share Posted August 28 2 hours ago, K4309 said: Yes, it goes bottle, solenoid, regulator. BUT, technically (legally) you aren't able to replace the solenoid yourself. You need to get a certified gas fitter to do it, and pay the $1,000 to re-issue the gas certificate. It is questionable if you require a solenoid for safety purposes. Some gas fitters say you don't, some say you do. That is with respect to having two gas sniffers interlinked with a solenoid. Of course if you want want so you don't have to physically go to the gas locker to turn the gas off, then knock yourself out. Oh, and if any other part of your system isn't complaint with the current regs, a gas fitter will make you change the whole lot so that he can re-install your solenoid. That includes replacing your stove if it doesn't have auto-flame out on all elements. And replacing any flexible hose that are older than 7 years. How did we ever survive fitting our own regulator,running gas pipe,when was the last vessel to explode via gas? Oh well back to carrying cans of kero or meths. Do I need a sniffer in the engine bay incase theres a diesel leak? never mind the mountain of wires running off the batteries. All over top imo 1 Quote Link to post Share on other sites
aardvarkash10 1,065 Posted August 28 Share Posted August 28 3 minutes ago, harrytom said: How did we ever survive fitting our own regulator,running gas pipe,when was the last vessel to explode via gas? Oh well back to carrying cans of kero or meths. Do I need a sniffer in the engine bay incase theres a diesel leak? never mind the mountain of wires running off the batteries. All over top imo our gas locker (now redundant) also houses the liquid fuels. Constantly smells of tw-stroke fuel fumes... 😏 1 Quote Link to post Share on other sites
LBD 169 Posted August 29 Share Posted August 29 44 minutes ago, aardvarkash10 said: our gas locker (now redundant) also houses the liquid fuels. Constantly smells of tw-stroke fuel fumes... 😏 4 stroke fumes are no better... I keep a little petrol in the gas locker also... and butane soldering iron and fuel. 1 Quote Link to post Share on other sites
Psyche 726 Posted August 29 Share Posted August 29 Most people just ignore the gas issue until they need to deal with it for insurance etc. Gas is a lot safer than people suggest, how many houses have gas appliances that rely on an install way back in the dark ages? On boats its all about confined spaces and leaks, the typical explosion is waking up and putting the kettle on and boom. For small Kiwi yachts a sensible DIY job that follows good practice is safe, most (all!) of us haven't blown ourselves up and there is no way most of the installations would pass current regulations. The portable camping gas stoves are probably more dangerous but still we have to abide by the rules and the marine gasfitting business seems to be very guilty of boat owner = lets charge whatever we like since they have no alternative. Larger complex boats with furniture that cannot be removed or provide access to inspect gas lines and joints are another story, 2 Quote Link to post Share on other sites
Ex Machina 384 Posted August 29 Share Posted August 29 16 minutes ago, Psyche said: Most people just ignore the gas issue until they need to deal with it for insurance etc. Gas is a lot safer than people suggest, how many houses have gas appliances that rely on an install way back in the dark ages? On boats its all about confined spaces and leaks, the typical explosion is waking up and putting the kettle on and boom. For small Kiwi yachts a sensible DIY job that follows good practice is safe, most (all!) of us haven't blown ourselves up and there is no way most of the installations would pass current regulations. The portable camping gas stoves are probably more dangerous but still we have to abide by the rules and the marine gasfitting business seems to be very guilty of boat owner = lets charge whatever we like since they have no alternative. Larger complex boats with furniture that cannot be removed or provide access to inspect gas lines and joints are another story, We have a fixed solid line that disappears behind linings and fixtures over about 8 meters and that’s the bit I don’t trust . Until that’s replaced the gas gets turned off at the bottle . 1 Quote Link to post Share on other sites
Psyche 726 Posted August 29 Share Posted August 29 and every bulkhead it passes through requires a fitting with two joints (one either side) if I understand the regs correctly? Quote Link to post Share on other sites
K4309 353 Posted August 29 Share Posted August 29 45 minutes ago, Psyche said: Most people just ignore the gas issue until they need to deal with it for insurance etc. Gas is a lot safer than people suggest, how many houses have gas appliances that rely on an install way back in the dark ages? On boats its all about confined spaces and leaks, the typical explosion is waking up and putting the kettle on and boom. For small Kiwi yachts a sensible DIY job that follows good practice is safe, most (all!) of us haven't blown ourselves up and there is no way most of the installations would pass current regulations. The portable camping gas stoves are probably more dangerous but still we have to abide by the rules and the marine gasfitting business seems to be very guilty of boat owner = lets charge whatever we like since they have no alternative. Larger complex boats with furniture that cannot be removed or provide access to inspect gas lines and joints are another story, This. All the explosions, fires and deaths I've heard of have been from portable gas appliances. Either those old portable LPG heaters, or butane stoves used in confined spaces, like tents. 1 Quote Link to post Share on other sites
K4309 353 Posted August 29 Share Posted August 29 22 minutes ago, Psyche said: and every bulkhead it passes through requires a fitting with two joints (one either side) if I understand the regs correctly? It gets a bit murky. If you have a single appliance you can use the flexible gas hose, available from Burnsco at $12/m or from the gas fitter at $4/m. (AS/NZS1561 class C by memory) You have to protect it from chafe at all points, so anywhere it does anything, like go through a bulkhead, you put it in some cable duct (the black plastic flexibly one, not rigid PVC). If you have a 'complex' system as defined by the regs, then you need copper pipe. That is a system with more than one appliance. The copper pipe needs a different style of protection at bulkheads. As my system is 'simple' I didn't go down the rabbit hole to find out what that is. That, and I don't have any bulkheads on my 2.5m pipe run, just the exist hole out of the gas locker (which is still considered a bulkhead I believe, that one needs to be leak proof. The only issue I had with the 'simple' system and flexible pipe is that 3 out of 4 gas fitters told me I still needed copper pipe and stainless flexible sections at each end. Even when I queried the regs and quoted the clause to them. The great irony is that, when discussing gas certificates with my insurer, all they said was "as long as it's not copper, cause that corrodes and leaks and we don't like copper"... I understand to get the copper pipe up to the same performance standard as the $4/m flexible pipe, they now anneal it in a rubber sheath, so it looks, err, like the flexible pipe. The only issue with the $4/m flexible pipe is it needs to be replaced every 7 years. Which is the validity of the gas certificate anyway. I don't really have a problem with that requirement. 1 Quote Link to post Share on other sites
CarpeDiem 510 Posted August 29 Share Posted August 29 2 hours ago, K4309 said: It gets a bit murky. If you have a single appliance you can use the flexible gas hose, available from Burnsco at $12/m or from the gas fitter at $4/m. (AS/NZS1561 class C by memory) You have to protect it from chafe at all points, so anywhere it does anything, like go through a bulkhead, you put it in some cable duct (the black plastic flexibly one, not rigid PVC). If you have a 'complex' system as defined by the regs, then you need copper pipe. That is a system with more than one appliance. The copper pipe needs a different style of protection at bulkheads. As my system is 'simple' I didn't go down the rabbit hole to find out what that is. That, and I don't have any bulkheads on my 2.5m pipe run, just the exist hole out of the gas locker (which is still considered a bulkhead I believe, that one needs to be leak proof. The only issue I had with the 'simple' system and flexible pipe is that 3 out of 4 gas fitters told me I still needed copper pipe and stainless flexible sections at each end. Even when I queried the regs and quoted the clause to them. The great irony is that, when discussing gas certificates with my insurer, all they said was "as long as it's not copper, cause that corrodes and leaks and we don't like copper"... I understand to get the copper pipe up to the same performance standard as the $4/m flexible pipe, they now anneal it in a rubber sheath, so it looks, err, like the flexible pipe. The only issue with the $4/m flexible pipe is it needs to be replaced every 7 years. Which is the validity of the gas certificate anyway. I don't really have a problem with that requirement. What did you use and get signed off/certified for the leak proof bulkhead fitting where the flexible hose exits the locker? Quote Link to post Share on other sites
K4309 353 Posted August 29 Share Posted August 29 20 minutes ago, CarpeDiem said: What did you use and get signed off/certified for the leak proof bulkhead fitting where the flexible hose exits the locker? I haven't actually done that yet, as have a few jobs ahead of it, but the two options my gasfitter gave me was A), a proper grommet, or B.) any kind of sealant I want, as in Silicon, Dowsil etc. Quote Link to post Share on other sites
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