Tractor Posted October 17, 2019 Report Share Posted October 17, 2019 I am looking for a Propane gas detector, devices which look to be thin on the ground. Can anyone recommend a device please? Link to comment Share on other sites More sharing options...
matty40s Posted October 17, 2019 Report Share Posted October 17, 2019 1 2 Link to comment Share on other sites More sharing options...
MtB Posted October 17, 2019 Report Share Posted October 17, 2019 https://www.bes.co.uk/ridgid-micro-cd-100-combustible-gas-detector-21679 Link to comment Share on other sites More sharing options...
Rickent Posted October 17, 2019 Report Share Posted October 17, 2019 (edited) 4 minutes ago, matty40s said: If this don't detect it then you are in trouble. Edited October 17, 2019 by Rickent Link to comment Share on other sites More sharing options...
Alan de Enfield Posted October 17, 2019 Report Share Posted October 17, 2019 20 minutes ago, Tractor said: I am looking for a Propane gas detector, devices which look to be thin on the ground. Can anyone recommend a device please? Not sure where you are looking but Google give 100's of hits for "Boat gas detector" Just one company with several variations : https://www.asap-supplies.com/fuel-systems/gas-alarms Link to comment Share on other sites More sharing options...
Jen-in-Wellies Posted October 17, 2019 Report Share Posted October 17, 2019 20 minutes ago, Tractor said: I am looking for a Propane gas detector, devices which look to be thin on the ground. Can anyone recommend a device please? Why are you looking for a propane gas detector? Is it for a boat? Very few boats have ones that detect propane in the air. The effort is put in to preventing a leak in the first place, since the consequences in a confined space, with no where for it to go are potentially so bad (kaboom!). Bubble testers are the most common propane leak detectors on boats, looking for flow of gas when no flow should be happening. Jen Link to comment Share on other sites More sharing options...
Momac Posted October 17, 2019 Report Share Posted October 17, 2019 19 minutes ago, Rickent said: If this don't detect it then you are in trouble. Some people have no sense of smell. Link to comment Share on other sites More sharing options...
rusty69 Posted October 17, 2019 Report Share Posted October 17, 2019 (edited) 1 minute ago, MartynG said: Some people have no sense of smell. Plus sometimes its easier to get a gas sniffer onto a compression joint than your nose.I bought one a few months back cos I'm getting too old too climb in cupboards with a glass of soapy water and a paintbrush. Edited October 17, 2019 by rusty69 Link to comment Share on other sites More sharing options...
Alan de Enfield Posted October 17, 2019 Report Share Posted October 17, 2019 2 minutes ago, Jen-in-Wellies said: Why are you looking for a propane gas detector? Is it for a boat? Very few boats have ones that detect propane in the air. Actually many, many boats have them, they can be found at most coastal chandlers. It just seems to be the Inland Waterways boats that seldom have them. Link to comment Share on other sites More sharing options...
Rickent Posted October 17, 2019 Report Share Posted October 17, 2019 Just now, MartynG said: Some people have no sense of smell. True, in which case a detector would be necessary, but for someone with a sense of smell , propane smells extremely bad, even in tiny amounts. Link to comment Share on other sites More sharing options...
Jen-in-Wellies Posted October 17, 2019 Report Share Posted October 17, 2019 Just now, Alan de Enfield said: Actually many, many boats have them, they can be found at most coastal chandlers. It just seems to be the Inland Waterways boats that seldom have them. Live and learn. I've not done any lumpy water boating as I get sea sick very easily. ? Link to comment Share on other sites More sharing options...
Alan de Enfield Posted October 17, 2019 Report Share Posted October 17, 2019 4 minutes ago, Jen-in-Wellies said: Why are you looking for a propane gas detector? Is it for a boat? Very few boats have ones that detect propane in the air. The effort is put in to preventing a leak in the first place, since the consequences in a confined space, with no where for it to go are potentially so bad (kaboom!). Bubble testers are the most common propane leak detectors on boats, looking for flow of gas when no flow should be happening. Jen A bubble detector will only tell you that you have a leak if you remember to check it daily / several times a day. (I don't check my bubble tester between BSS checks.) An alarm will detect and give you an audible warning with no effort from the boater. Link to comment Share on other sites More sharing options...
rusty69 Posted October 17, 2019 Report Share Posted October 17, 2019 .......So is the OP after a constantly on gas alarm, or one of those portable gas sniffer jobbies? Link to comment Share on other sites More sharing options...
Tractor Posted October 17, 2019 Author Report Share Posted October 17, 2019 (edited) I have a 'dualwatch, combined gas and co alarm for boats', which is no longer supported. This device seems to be 'flaky', so will try to replace the propane gas detection element. This is for a narrowboat. I would prefer a detector which is on all the time we are on the boat, so could run from the 12 Volt supply if necessary. Edited October 17, 2019 by Tractor more detail Link to comment Share on other sites More sharing options...
Slim Posted October 17, 2019 Report Share Posted October 17, 2019 I've got a Pilot gas detector fitted. I bought it years ago. 12v it's wired into the same circuit as the 12 v ignition for my hob / oven. Every time I turn that circuit on it bleeps. I don't know if the sensor head (which I've placed below the oven ,just above the bilges) has a limited life. I'll read the fitting instructions next time I'm on the boat. Will also try to give it a test by dangling above an unlit burner. Link to comment Share on other sites More sharing options...
ditchcrawler Posted October 17, 2019 Report Share Posted October 17, 2019 I hope your other half doesn't use aerosol polish around the boat as some of them can poison the detector head. Having worked with them for 20 years I wouldn't have one because I don't believe they are reliable enough unless things have changed a lot since I retired. The level of maintenance required was quite high Link to comment Share on other sites More sharing options...
RAB Posted October 18, 2019 Report Share Posted October 18, 2019 Agree with Ditchcrawler. Things may have changed but in the past we looked at propane gas detection for a Gas Turbine start system. In the end we didn’t fit any detectors but had to increase ventilation times to ensure we met the hazardous area requirements, because the detectors were prone to poisoning. We also looked at IR detectors (We used them for Natural Gas detection), but can’t remember why they wouldn’t work for us, sorry! As previously said, things may have changed. Link to comment Share on other sites More sharing options...
Tractor Posted October 18, 2019 Author Report Share Posted October 18, 2019 Thanks for the response, it appears that reliable Propane detection is more difficult to provide than carbon dioxide; detectors necessarily close to the floor are subject to contamination. Thanks again Link to comment Share on other sites More sharing options...
MtB Posted October 18, 2019 Report Share Posted October 18, 2019 (edited) 40 minutes ago, Tractor said: Thanks for the response, it appears that reliable Propane detection is more difficult to provide than carbon dioxide; detectors necessarily close to the floor are subject to contamination. Thanks again No, carbon dioxide is VERY difficult to measure accurately or detect in dangerous concentrations. Carbon monoxide on the other hand, can be monitored with detectors costing about £15. Edited October 18, 2019 by Mike the Boilerman Change a detail 1 Link to comment Share on other sites More sharing options...
Chewbacka Posted October 18, 2019 Report Share Posted October 18, 2019 I suspect the op fancies having one of these - https://www.bes.co.uk/amos-lpg-alarm-12-v-remote-sensor-13066 Link to comment Share on other sites More sharing options...
Mac of Cygnet Posted October 18, 2019 Report Share Posted October 18, 2019 I have one, down near the floor near the gas fridge. It's wired into the 12V system. How effective it would be in the event of a leak I don't know, but it responds to a test with a gas lighter. The BSS inspector seemed approving that I had one. Link to comment Share on other sites More sharing options...
bizzard Posted October 18, 2019 Report Share Posted October 18, 2019 Pick one up at Canary Wharf. Link to comment Share on other sites More sharing options...
tree monkey Posted October 18, 2019 Report Share Posted October 18, 2019 38 minutes ago, bizzard said: Pick one up at Canary Wharf. Is it just me or does that bird look really really sad 1 Link to comment Share on other sites More sharing options...
cuthound Posted October 18, 2019 Report Share Posted October 18, 2019 42 minutes ago, tree monkey said: Is it just me or does that bird look really really sad So would you if you knew you were just about to be stuffed into the bilge! ?? 1 Link to comment Share on other sites More sharing options...
Tractor Posted October 18, 2019 Author Report Share Posted October 18, 2019 Yep, must get up to speed with the difference between Carbon dioxide and Carbon monoxide......... From some reading, propane gas being twice as heavy as air goes to the floor; sensors then on the floor are subject to some contamination, working life then may be limited. Devices like Figaro semiconductor sensors need some time to stabilize, and also require a good heater supply. https://www.bes.co.uk/amos-lpg-alarm-12-v-remote-sensor-13066, this link then looks useful, just what I need, thanks again for this. Thanks again. Link to comment Share on other sites More sharing options...
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