Comparing Silverfire & Ohuhu Wood Gas Stoves
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- Опубликовано: 9 сен 2024
- I take a look at the Silverfire Scout (US made) and Ohuhu wood gas stoves and do a side by side burn test to take a look at their gasification.
From Todd Albi at SilverFire
There are lots of Chinese knockoffs of the SilverFire Scout. The biggest misleading comparison you missed is safety. You failed to show that the Ohuhu lacks our important design feature that the SilverFire Scout offers. The protective ash pan feature should shown attached to the combustion chamber floor. Our SilverFire Scout ash pan prevents live embers from igniting Forest Service Campground tables or your home wood picnic table. I'd encourage you to do a side by side comparison on 2 scrap 2" x 6" and see the results below the stoves after removing them from the wood surface after the demonstration burn. The Ohuho and other knockoffs will actually ignite a wood table. The knockoffs are major fire hazards. All these stoves are designed to be lit with tinder. Accelerants fatigue combustion chamber metal faster over time and shorten stove life. Demonstrating ignition with lighter fluid increases inapproriate ignition. Regards, SilverFire
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I know it's an old video but for anyone watching this. It's most important to build a top light down fire in these for them to work correctly from the start... you will get a longer and smokeless burn 🔥
a 6x6" square of carbon felt (welding cloth) helps keep the picnic table safe. I keep a piece with all my woodburning stoves.
Good idea. I use a coffee can bottom on mine. But I just got some carbon felt for another project.
your stoves will start better and come up to temp faster burning hotter and cleaner if you keep your fuel load at least 3/4" below the secondary air vent (at the top of the stove). You never want to have any fuel protruding out of the top of the stove or past the bottom of the secondary air vents. Starting your fire on top of the fuel load is very important with a TLUD stove as the fire needs to burn down to gasify properly and liquid fuel is not a good starting choice as it will ignite fuel below the top of the fuel load. As your video clearly shows liquid fuel has set the full fuel load on fire which is not the desired goal and it is counter productive. You want to establish a small and very controlled primary burn on top of the fuel load to provide the heat necessary for pyrolysis below the primary burn which generates the woodgas for the secondary burn. Just from watching your two stoves burn I would suggest that you could improve the burn quality of both if you were to drill a series of additional holes in the curved top cover ring, this will provide addition secondary air as well as a down draft to increase wood gas dwell time in the secondary burn area. This will result in a more efficient secondary burn. That means a hotter and longer lasting burn on less fuel. I hope this is of interest and is helpful.
Thanks for your detailed response, it was appreciated.
The liquid stater was definitely a bad idea, I was looking for a fast start. I usually do a top down burn with a vasiline cotton ball and some wood shavings.
I'll take look at adding the extra holes.
@@planetsideagent here is more specific and detailed information on the modification I suggested. Most of the inexpensive woodgas stoves available work/burn well enough and look good to watch but most are not really very efficient when it comes to emissions max heat and fuel efficiency. these modifications will help a lot. The give away is seeing smoke at any time during use and soot on pots. stoves.bioenergylists.org/content/modified-retail-tlud. I hope you find this article of interest.stoves.bioenergylists.org/content/modified-retail-tlud
The gassification process of the ohuhu started sooner and was burning cleaner as evidence by the clear flames as opposed to the other giving off orange inefficient sooty flames throughout the comparison. The alcohol pan will restrict airflow but you can choose not to use it as opposed to the other being built in with the ash tray. Another draw back is if you need a longer use ashes will collect at the bottom further restricting airflow. With the ohuhu you can just pick it up and move it a few inches to a different location leaving the ashes behind. The other unit it isn't possible unless you dump everything out and then reload with fuel.
I'm going to do another test but use wood pellets to have the test more equal.
I paid $14.99 for the ohuhu about 7 years ago. Best money I ever spent on any camp stove.
yep, they work great and are a good value.
Mine too nearly 5. All Chinese are in very high quality. All my other stoves are also Chinese made. Why pay USA made money rip offs. I moved my multitool from useless Leatherman to Roxon, as I do not want to pay nearly 2OO dollars for nail clippers, cork screws or bottle openers in Leatherman as they are for ladies. Enjoy outdoors with useful practical products not to waste money
Lets be reasonable, not all Chinese products are good quality. And certainly not all Chinese gassifiers are good qhality. The Chinese copy others and each other and this design is very basic and work well. There are many chinese products copied and stolen designs from the west that fail spectacularly.
i spent 10USD on ohuhu. one year back.
Not sure how the pot stand is better on the SilverFire. It may be more robust over time, the Ohuhu has pretty small rivets, but the Ohuhu is much wider and more stable. Mine, bought last week, is well made, the parts all fit together well, the only improvement I would make is to fix a small tray underneath, easily done.
I use hand sanitiser gel as a sterter, it sits on top and starts the burn the right way, and doesnt drip down like lighter fluid.
I've never thought of or tried hand sanitizer, definitely better than lighter fluid.
Silverfire was one of the original providers of these kinds of stoves many years ago. My old one still works and it's much bigger than these.
There are lots of Chinese knockoffs of the SilverFire Scout. The biggest misleading comparison you missed is safety. You failed to show that the Ohuhu lacks our important design feature that the SilverFire Scout offers. The protective ash pan feature should shown attached to the combustion chamber floor. Our SilverFire Scout ash pan prevents live embers from igniting Forest Service Campground tables or your home wood picnic table. I'd encourage you to do a side by side comparison on 2 scrap 2" x 6" and see the results below the stoves after removing them from the wood surface after the demonstration burn. The Ohuho and other knockoffs will actually ignite a wood table. The knockoffs are major fire hazards. All these stoves are designed to be lit with tinder. Accelerants fatigue combustion chamber metal faster over time and shorten stove life. Demonstrating ignition with lighter fluid increases inapproriate ignition. Regards, SilverFire
Todd, you are absolutely correct on all points.
I did notice the ash pan and was going to talk about it but forgot to mentions it.
I originally bought the SilverFire because of the quality and design long before I started my RUclips channel. I purchased the Ohuhu because I collect stoves, it was cheap and I wanted to see what it was like.
A lot of folks buy the Chinese products because they cannot afford much else, the rest of us will buy American because of the quality and to help small US business.
I added your comment to the video's description and pinned it to the comment section.
You guys make excellent products and I hope the best for you.
Why should someone have to buy an extra ash plate when our design incorporates it? Folks in the West have been devastated by wildfires, using a safer design only makes sense. The Ohuhu will start a fire if placed on a Forest Service table, ours will not. Your comment makes no sense.@Pentium Penguin & Pigeon
Who the fool is going to light this up on a wooden table or a plastic table or perhaps on top of a pile of dried leafs in a forest. Educated sensible campers do not do such stupid or idiotic things! I have been using various so called 'knock offs' including Luxadia and other generics in various models too for *YEARS* without setting fire to woodlands. My Ohuhu, Lixada and similar can hold the fire for more than 45 min. using the top down fire method, cook for 3 big adults easily, with less soot!!! Never used wood pellets or liquid fuel but things find in the forest!!!
I did an ashpan like the Silver fire scout to my wood gas stove
I picked one of the knockoffs and have been trying it out. I just put down a good layer of aluminum under the burn chamber as my ash plate. Easy peasy. Ones probably as good as the other. I use the Solo stove too.
Wow! They are small. I’m considering buying silver fire rocket stove. Thanks for the demo.
It was real hard to see any gasification from the inner holes on the Silverfire Scout and its a more orange flame I don't think it burns as clean. The Ohuhu looked to be burning better as all the gasifiaction ports are clearly working through most of the video once it gets going with a clear flame. That is a trend I see in other Ohuhu videos. Seems to burn clean no matter what people put in it wood and twig wise.
Ótimo vídeo Parabéns 👍👍🇧🇷
The Silverfire is a great stove. Pellets are quick & easy.
You had the Ohuhu overloaded. The Silverfire had more air flow
🙏🏼
I use a coffee can bottom on my Ohuhu. Just to keep ash off of the ground and keep air flow.
They seem to be working fine, both of them.
I've used a similar knock off wood burning stove from China, I don't remember the name, but it's similar to the Ohuhu, but the holes is parallelogram in shape instead of rectangular, it look like the Ohuhu but twisted a quarter inch at the top and bottom.
It will always start the gasification eventually, but even when I fill with as comparable loads as I can, there is a wide variety in the time it take for it to start up, you could do a comparison with something like 5-10 burns, my guess is that it will not be the same stove that start the gasification process first every time.
They seem way to unpredictable to me to be judged by a single comparison.
There isn't much that can go wrong with a steel pot, so my general advise doesn't apply here, I usually prefer to buy locally if something goes wrong, but as I said, there isn't much to go wrong here. 😀
Thanks 😌
Oops... I asked in the first video if you did the followup comparison and here it is! Goodness gracious... how can you hope to get close enough to the blazing little stove to cook without getting scorched yourself??
They don't have feeding ports and can be dangerous feeding wood from the top burns mmmm
If you load them right and use them for what they're intended for you won't have to feed them at all. Properly loaded, these stoves can burn for upwards of an hour, which is more than enough time to do multiple cooks. If you throw some tinder in the bottom and some sticks on top of it and light it off, it will devour the fuel in minutes and you'll have to constantly feed it to keep it going, but this is not how these stoves are designed to work.
Ok I get your point but there is still a possibility of being burnt if tired or not totally focused
All things are never equal.
I have the Ohuhu and thinks it works good but the minute you put a pot on it starts smoking. Do you have that problem and if you do, how do you help with this breathing problem?
To be honest I haven't used the stoves that much, mostly test burns.
My best guesses would be to make sure the bottom air holes are not obstructed so as to allow good air flow.
If you are uses a large pot or pan that could slow air flow.
please do comparison using wood pellets .
I've thought about it but haven''t gone out looking for them. For and equal comparison wood pellets are the way to go.
After seeing many RUclips videos recommending wood pellets, I decided to try it. It SUCKS! The pellets would burn for ten minutes well before turning black at which point the flames would die down and heat production reduces to 25%. The problem is the pellets lays piles too well preventing air circulation and only the top layer burns. I had to remove my pans and using a stick to stir the pellets allowing fresh pellets from the bottom to come to the top. This would also cause the pellets to break up and turn to ash very quickly. Batoning some sticks and keeping a good supply on hand would serve you better!
@@samthai818 , wood pellets burn for a long time . if the design is right , wood pellets can burn for 90 minutes where inner chamber of the stove is 10 inches in hight .
I have a gas stove and I modified it to work with wood pellets.
The first thing I did was make an Ash pan similar to the silverfire, and the second thing I did was add a fine stainless steel grate to the burn chamber. I get 30 minutes of burn time with a half full burn chamber.
Not much smoke coming out of either one, right?
Correct, they both burned equally well.
How long did they burn for?
I've never timed these type stoves but basically as long as you keep feeding fuel. They do go through fuel pretty quickly so you need to have plenty on hand.
The alcohol burner dose not go under the base of the Ohuhu at all. It goes in the burn chamber and you can put the burn chamber in upside down and brings the alcohol pan up closer to the grate if desired. Basically all those small cylinder gasifier burners are all knockoffs of one stove the Ohuhu. Don’t know if all the companies are still trying to sue each other that are trying to claim the fame as the first. It’s down to 2 companies now I think, Ohuhu, and Wilderness something or other sorry I can’t remember it. But all the companies are still making them LoL. I like taking my Ohuhu to the bar with a nice bucket of fuel or bag of pellets sit the stove on a picnic table, I use a broken piece of cinderblock perfectly flat piece and light it up kick back and have fun.
Why would you leave the alcohol tray in the stove when burning wood ???? that has to be the most bonkers thing that have seen in a long time. I have been using my Ohuhu stove for 5 or 6 years and have never had a problem with it. I use cat litter pellets (wood) a lot and have found that i can get a 1-1/2 hr burn
I've been told you use the alcohol tray under the stove to catch ashes.
No, its not about the air Flow 😂, i know
Don't think I'd buy either,as top loading midway isn't all that.More than 1 other is same,with a section you can add wood with campware not having to move.Much easier and safer.
You put way too much fluid on the silverfire. Flames were shooting out the side! Do a fair test.
yeah, using the lighter fluid was bad idea. In the end I think both stoves perform the same. My original intent was just to see if one burned different than the other not if one was better.
How long does the clean flame last?
You get what you pay for... We have a significantly stronger pot support design, an additional trim ring, and an ashtray below our stove (absent in the Ohuhu design). If you place both stoves on a piece of wood and light both stoves you'll learn the difference with an apple-to-apple burn test. You obviously are not familiar with refractory metallurgy and melting temperatures between stainless steel and aluminum or you would not post uninformed opinions. Enjoy repeatedly purchasing tin foil if that is your preference.
Your ill repar
Size and shit matters not according to you Yoda Yoda Yoda Yoda Yoda says size, but not in this case, shapes matter or not OK😂