silly question on gas detector

[sunlover]

I was going to install this in the aft cabin which is next to the galley and where the propane line is. Then I wondered if some nocturnal flatulence may set it off. Valid concern?

 

[dlochner]

We have a Trident gas detector. All kinds of organic vapors will set it off. Not really a big deal. Just air it out and reset it.

Some cleaning products, alcohol, solvents, diesel will all trigger the alarm. The alarm should go towards the lowest point in the boat where it can remain dry. They don't like water, don't ask how I know this.

 

[Hello Below]

Some cleaning products, alcohol, solvents, diesel will all trigger the alarm.

 

[Ralph Johnstone]

If you've got night time flatulence that creates a nuisance alarm in your gas detector, I would say the alarm is the least of your worries. I would think your social life may be in jeopardy .

Results may vary !

 

[MikeHoncho]

Short answer No. We produce methane which has a vapor density (weight) of a little more than 1/2 that of air, so it rises. All flammable vapors and all but 14 gases are heavier than air (methane being one of the 14) so mount the detector low where it should be mounted and you are good. If it triggers from methane down there then seek a doctor and lay off of taco Tuesday.

 

[sunlover]

I'm switching to a surface mount device and I'll install it below the battery isolators on my Beneteau

 

[sunlover]

If you've got night time flatulence that creates a nuisance alarm in your gas detector, I would say the alarm is the least of your worries. I would think your social life may be in jeopardy .

Results may vary !

Just asking for a friend.

 

[dlochner]

I'm switching to a surface mount device and I'll install it below the battery isolators on my Beneteau

Why? The place to locate them is beneath potential leaks, under the stove, near the bottom of the propane locker where the hose comes out, and such.

If you are concerned about hydrogen from batteries, hydrogen is lighter than air and will rise not sink.

 

[Head Sail]

Then I wondered if some nocturnal flatulence may set it off. Valid concern?

There is a way to find out. Expel faltulence in an old pickle jar large enough for the monitor to fit inside. Place the top on the jar. If the alarm is silent, your safe.

 

[sunlover]

Why? The place to locate them is beneath potential leaks, under the stove, near the bottom of the propane locker where the hose comes out, and such.

If you are concerned about hydrogen from batteries, hydrogen is lighter than air and will rise not sink.

1) close to the floor with 12V access.
2) it's right next to the galley.
3) aft cabin has the propane line and shutoff valve.
4) for the win, I'm mostly concerned propane at night when I'm sleeping and the wind goes slack.

 

[dlochner]

1) close to the floor with 12V access.
2) it's right next to the galley.
3) aft cabin has the propane line and shutoff valve.
4) for the win, I'm mostly concerned propane at night when I'm sleeping and the wind goes slack.

That makes sense. For those of us who don't have Beneteuaus the description may not have made sense, this does.

 

[thinwater]

I'm hoping this is a joke thread.

 

[sunlover]

I'm hoping this is a joke thread.

It certainly can be. please be creative.

 

[sailme88]

Propane is heavier than air. It will always find it's way to the lowest point that is can travel to. To place a detector in a cabin is counterproductive. you need to assess what the lowest point of travel is.

 

[sunlover]

Propane is heavier than air. It will always find it's way to the lowest point that is can travel to. To place a detector in a cabin is counterproductive. you need to assess what the lowest point of travel is.

You probably didn't see my earlier post regarding a similar concern:

1) close to the floor with 12V access.
2) it's right next to the galley.
3) aft cabin has the propane line and shutoff valve.
4) for the win, I'm mostly concerned about propane at night when I'm sleeping and the wind goes slack.

 

[Hayden Watson]

My propane sniffer has two remote sensors and also controls my solenoid so that if I get an alarm, it simultaneously shuts the tank solenoid. One sniffer is directly under the range so that if the flame goes out, it will trigger. The other sensor is on my engine bed which is below deck and near the lowest point but above any normal water levels.

 

[sunlover]

My propane sniffer has two remote sensors and also controls my solenoid so that if I get an alarm, it simultaneously shuts the tank solenoid. One sniffer is directly under the range so that if the flame goes out, it will trigger. The other sensor is on my engine bed which is below deck and near the lowest point but above any normal water levels.

I wonder why they didn't go with ethylene for boats. it compresses to a liquid at ~500 psi and it's lighter than air. Seems like a no brainer. Eventually, I'll rip out the stove and just rely on electric.

 

[dlochner]

I wonder why they didn't go with ethylene for boats. it compresses to a liquid at ~500 psi and it's lighter than air. Seems like a no brainer. Eventually, I'll rip out the stove and just rely on electric.

The market is too small. That’s why CNG is disappearing

 

[jssailem]

nocturnal flatulence may set it off. Valid concern?

As stated, likely NO.
But it does bring up the images from "JackAss, the movie".

Testing the hypothesis might be feasible, as you sip and contemplate the needed elements.

Volume, being perhaps the most important.

I look forward to following the report of testing.

 

[vetch]

A lot of those sensors work by trying to burn the air if it burns it alarms. So yeah they will be set off by LPG, CNG, alcohol, methane, gasoline. You name it