Tips For Safe Use of LP/Gas Roasters In a Residential Setting - Page 4

Discuss roast levels and profiles for espresso, equipment for roasting coffee.
jacob.kole
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#31: Post by jacob.kole »

I also have a MCR 500 gram roaster on order. After years of roasting in a garage in a cramped space, I am moving my roasting setup to my basement. I am planning on making a window insert with a dryer vent attached to vent out. I could run the gas line out that same insert. It is a walk out basement, so there is a door right next to my planned roasting area. Shouldn't be too much of a hassle to turn the gas off and move the tank out of the way when I'm done. I'd like to have the tank inside for convenience, but I'm still on the fence about it...

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CarefreeBuzzBuzz

#32: Post by CarefreeBuzzBuzz »

Do people have a view on the use of Stainless Steel vs rubber LP hose?
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SAS
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#33: Post by SAS »

Something I came across on YouTube that is worthwhile for users of propane tanks.

Low Flow - The Full Story

This is a bit long, but the video should help with understanding what happens with our propane tanks, hoses and regulators; educational for all.

I don't think you need stainless braided hoses for home use. The safety features in place will allow you to shut off the gas manually in the even of a hose separation.
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Tonefish

#34: Post by Tonefish »

SAS wrote:Something I came across on YouTube that is worthwhile for users of propane tanks.

Low Flow - The Full Story

This is a bit long, but the video should help with understanding what happens with our propane tanks, hoses and regulators; educational for all.

I don't think you need stainless braided hoses for home use. The safety features in place will allow you to shut off the gas manually in the even of a hose separation.
Thanks for the post Moshe. That is good to know. I had this problem with a grill at a Blues Festival last Memorial Day. I blamed the regulator and replaced it with an old one. I'll have to see if the Weber manual even mentions this.
LMWDP #581 .......... May your roasts, grinds, and pulls be the best!

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drgary
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#35: Post by drgary »

SAS wrote:Something I came across on YouTube that is worthwhile for users of propane tanks.

Low Flow - The Full Story

This is a bit long, but the video should help with understanding what happens with our propane tanks, hoses and regulators; educational for all.

I don't think you need stainless braided hoses for home use. The safety features in place will allow you to shut off the gas manually in the even of a hose separation.
Apparently the video doesn't apply to the high pressure Marshall regulator sold by Mill City Roasters. The guy in the video describes a safety mechanism built into the newer regulators that screw clockwise onto the outer threads on a propane tank and won't open flow without fully screwing it on. This newer fitting has a safety valve that can create a low flow if it senses too high a flow until you reset it. The Marshall regulator is the older kind of attachment that screws on counterclockwise into the smaller, inner threads of the propane tank. Also with the old style internal threads fitting you can turn on the propane without fully screwing it in, although I screw it in tightly for safety, using a ratcheting wrench. I'm not sure whether the Marshall regulator has a safety valve that triggers if it detects a leak.
Gary
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What I WOULD do for a good cup of coffee!

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FotonDrv

#36: Post by FotonDrv »

Interesting Post Moshe, that safety mechanish is something I ran up against in a barbecue a few years ago.
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vberch
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#37: Post by vberch »

Tom, thanks for reopening the post!

These are very important safety points. When I faced those decisions, I decided to build a room around the roaster and hire an HVAC company and an electrician to hook it up. I also made a decision not to use propane for safety reasons and went with natural gas.

Tom covered all major points. One thing I'd like to stress is the importance of having a clean and uncluttered exit route in case of emergency.

Happy roasting!
TomC wrote:Re-opened by request.

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CarefreeBuzzBuzz

#38: Post by CarefreeBuzzBuzz »

Thanks Moshe. Hope all is well with you.
SAS wrote:Something I came across on YouTube that is worthwhile for users of propane tanks.

Low Flow - The Full Story

This is a bit long, but the video should help with understanding what happens with our propane tanks, hoses and regulators; educational for all.

I don't think you need stainless braided hoses for home use. The safety features in place will allow you to shut off the gas manually in the even of a hose separation.
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Chert

#39: Post by Chert »

What about an ODS or oxygen depletion system?

Do contained gas roasters have such a system like gas heaters do? Basically if oxygen levels fall the system of thermocouples trigger valve shutoff.

Is such a safety feature a good idea for home roasters?
LMWDP #198

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millcityroasters

#40: Post by millcityroasters replying to Chert »

Yes, that's a very good idea and per regs, our ignition system shuts down in a low oxygen condition as part of the flame sensing system.