As mentioned, you really want to add a fresh air duct to feed the fire with outside air. All wood fired stoves consume a large amount of air. If that air is drawn from the house, besides pumping warm room air up the chimney, it places the house under a vacuum and all that air is replaced by cold outside air thru every crack in the envelope. A sealed combustion air supply will stop this and make the house more comfortable. If you really want to enhance the comfort this heater provides, add a second separate air duct. Run this one to a small computer fan so it blows air against the heat exchanger to heat the fresh outside air. That supply with the fan will add a slight positive pressure to the house and force air out thru the cracks in the envelope, instead of sucking cold air in. I have done this with the last 2 wood stoves I have had and will do it with any other I ever use. The difference in room/house comfort is literally night and day…

So you are sold on the idea of burning wood pellets now it's time to upgrade to a more efficient and less time consuming heater. May I also add perhaps a little more pleasing on the eye but certainly safer so no burning when touching the exposed metal surfaces. We live in the UK on the Welsh boarders at the top of a hill 452m above sea level and exposed to strong winds coming from the SW. I have a biomass boiler that heats my entire house (780sqm), plus all the hot water we need. It runs from 6am to 10pm seven days a week with a winter outside temperature of around 0°C and an internal temperature of 22°C. Occasionally we may see temperatures dip to -5°C but that's only for a few days. Current outside temperatures during the daytime are about 10°C. We use 15kg of 6mm softwood pellets per day. The feed hopper in the winter is filled just once a week and in the summer filled less than once per month. I empty the ash pan three times a year with each empty having about the same amount of ash you can put on a dinner plate. Apart from filling the feed hopper, this is totally automatic with absolutely no input from me. The boiler was installed 10 years ago in what used to be the tack room of the stables and hot water is pumped underground to the house. We pay typically about £360 per 975kg of pellets (single pallet load) and get through 4x975kg pallets per annum. The only other cost is an annual service (£350) plus a minimal amount of electricity to operate and manage the boilers computer system. The boiler is a German made Windhager, has never missed a beat, nothing has been repaired or replaced. It's exactly as it was installed 10 years ago. The entire boiler is covered with an attractive cover, cherry red and light grey, so no hot surfaces to get burnt on. An added bonus is the computer controller and water manifolds that direct the hot water to the various room radiators etc is installed in a small under stairs cupboard used for coats etc. This room is always warm which is excellent for drying wet coats and muddy boots.

Invest in a Stirling Engine fan. You just place them on the top if your fireplace, and when they get warm they turn on all by themselves. Requires no power, just heat.

Good video, and we also used a pellet stove for years because propane was so expensive, and a wood stove in the basement also. I enjoyed the many years of country living.

Been planning on building one of these for awhile now hopefully by next winter I will be using one I built

Great video

Nice. Looks like a good setup for burning free woodchips if you have a dry place to store them. Spread about 1 inch thick on a driveway for 8 hours on a sunny day. You won't get as much burn time, of course, but they are free. Also, I use outside air for combustion. Much more comfortable at lower temperatures.

You should use a dasy wheel from a Weber grill for air control.

Ce distanta este intre capatul tevii cu peleti si cosul de ardere (din poza facută in interiorul sobei nu pot observa)

Always wanted to try one, Now I am looking at ways to adapt one to my house.

Thanks for the review! If there is anything else we can help you with please feel free to let us know!

Question, instead of the blowtorch, why not lit a tiny bonfire into the firebox to light the pellets?

Interesting video but why do you shut it down at night

Love this!! Eric, do you think it would work well in my shop for continuous heat?

Thank you for sharing. Is the reason for placing the heater on bricks simply so you don’t have to bend down so low to ignite the pellets and for more space on the clean out on the backside? Also, have you ever considered adding an outdoor air intake on the opposite 4” opening where you have the damper cap?

Where did you get the glass for your stove mine is steel .On Amazon I bought a 4 inch damper used a can that fit in their works good .I also put a fan at the side of my stove puts nice even air out .I have the older model and have the newer where you can clean it 😊

Always wondered how welding on some radiator fins made of 3/16" mild steel and a little shrouidng around with expanded metal as a gaurd would do, bet it will heat up the place even faster.... still, thanks for showing us. and even in a pinch, can take out basket, put in a shelf and use scrap twigs and offcuts.

17:54 I'm going to buy one for my garage Thank you

thanks I'm looking at getting one of these, for pellets and maybe modified to burn waste oil.

Great video, great heater! Going to look into this, my main issue with pellets has been requiring power, and this handily solves that. Have you tried burning other alternative fuels? Cherry pits, corn, etc?

I wounder if a car throttle body would work for air intake control.

I have a few questions- (I currently operate a woodstove during the heating season in Vermont) How many pellets come in a bag and what is their price per bag?- what portion of a bag fills the hopper? Is there creosote like with a woodstove, in the chimney pipe? I sweep my own chimney and pipes- this is a twice a year chore. Where do you store the pellets? I assume they can't be stored where they can absorb moisture.

I hope these rocket stoves keep evolving so everyone can share ideas on development. The Russians use a brick stove with a very long horizontal chimney but I think it has slow gas travel to the end of the chimney stack. Greater heat transfer and larger thermal mass of brick work should stay warmer even after fuel goes out.

You could totally make an adjustable baffle on the air intake I think from a process control pov, it would be best to have a PID controller adjust the baffle according to the exhaust chimney temperature And then you could tune it by adjusting the setpoint of the chimney exhaust

How are they to clean and maintain????I have a Comfort Built and on low it will run a bag a day but i have it set up with a portable 3.6Kw solar generator that will power it if the grid goes down!! It only uses about 45W to run it and 450w to start it so no electricity no problem this generator will run it no problem 24/7.also can run other things off this solar generator when grid goes down. I do like this unit you have can run on split wood when SHTF 🙂

If you get one of those fans that converts electricity from heat you can blow the heat off the top pushing the heat downwards instead of rising

Have you considered that it might not be the MAP gas that's lighting the pellets faster, but instead the torch head you're using? I have both of those torch heads, and the one you have on the MAP gas is a much more efficient design.

Good video, thanks.

so the hopper and feed channel holds exactly 1 40 lb bad of pellets? Need to know some reference

I have a Harman Pellet stove and burn 1.5 bags (60#) on a cold day in 24 hrs. How many pounds do you burn in a 24hr day? Thanks

You could use a ecofan on top for quieter air movement and no plugs needed

ty for sharing. Whats the cost of pellets in that area? Per bag and per ton? for the quality you like to use.

That is a fantastic system. . . My only concern is a earthquake when the stove is burning and you are away from your home and the stove falls off the bricks. Potential leaving the stove laying on its side or uneven while a burn is underway !! Could it ignite the hopper reservoir or spill hot pellets on the surrounding areas ? Other than that, I think pellet stoves are great.

Regarding the amount of ash you removed from the ash compartment. That does not look like the correct volume of ash for 12 hours of burning. It may be possible that some ash is floating with the exhaust and ending up inside the inner barrel. Is there a way to open the outer barrel once a year to access the inner barrel for a full clean out and inspection?

If its a rocket stove...and really so efficient...does it need a chimney clean?

I have found it better to use the fans to blow cold air towards the warm room. Moves tie heat much better

u need to design a twist system for air flow

how many lb/hr? in avg. 12h. looks like 1/2 pouch. soft wood or hard wood? only to gauge how much i need for one time a day refill.

looks good

Any idea how many KGs of pellets per hour does the stove use?

How did your homeowners insurance respond to the Liberator stove?

Maybe I missed it but do you use this 24/7 or only while you are awake?

I am confused-why do you put the heater out at night? do you not like waking up to a warm house first thing in the morning?!

What is your grate made of? Thanks if you have the time.

Its the toech not the gass. As you point out the gas temp is not much hotter, but the torch you have on the blue bittle is much lower btu than the pro torch you habe on the map bottle. Swap torches on the bottles and youll see the blue out oerform the yellow.

But there is a small trade off for adding an external air supply you will have a higher delta T on the exchanger so a higher stress load possibly leading to areas of condensation & premature wear and you will burn more pellets to maintain the same heat due to colder intake air just be aware I am not in disagreement to what you said just adding to i have been a commercial heating tech in every field for 20 years

How many lbs does the hopper hold

"where you are in the pay week" lol

Any plans to add some thermal mass to the exhaust?

Run you box fan blowing the colder air into the room with the stove. The colder air will be low to the floor, then that air will be heated, rising, Circulating back towards the other rooms.

Where can u buy one ov these stoves ?

By code, 2 - 90 degree ells Max.

Why do you not burn during the night or though the night?

Anyone else see that glitch in the Matrix at the start, I wonder what the agents changed?

I'm a little worried about back burn.. could catch the hopper on FIRE. just a concern. other than that , it looks Great. I have a Harmon pellet stove, That I have been heating My Whole house, with Just pellets. I have been heating it with NO OTHER HEAT SOURCE for 15 years.. yes the Issue is, 1= it does use Electricity, 2= buying the Pellets Is Now More Expensive per bag (40 lbs). that and The BIDEN prices of Fuel, and Major Increase of Electric bills. your Idea with this stove is sounding Better, and Better... just wish I could make my own Pellets????? GREAT VIDEO THUMBS UP, And THANK YOU FOR YOUR TIME!!!!

What brand pellets do you use?

i think this stove would work great with used cooking oil. A small fire pan on down in the draft pipe, a tank on top to gavity feed a dripper.....good to go

A homemade rocket stove or bought?

How much does the hopper hold?

I don't know how to put anything on KZfaq at all .I do have one of my vents flex line going to the floor my damper on stove pipe is about 3 ft up .I bought some stuff for pellet stove on Amazon for creasole . Had the pipes everything smoked bad .Took the top off clean it out it back on started smoking everytime I start it up for about 2 minutes not bad

the yellow bottle has a better torch jet that the blue one thats why ot gets hotter. wider flame.

personally i prefer using heat gun for igniting pellets over blow torch. it is fast and doesn't require buying gas to burn. also main risk you have with a cool chimney is it will increase the risk of creosote buildup and potential for chimney fire. so might require a more frequent cleaning.

Why wouldn’t you run it at night? Just wondering

What keeps the fire from burning up the feed tube? Burning all the pellets in the hopper?

Well you are using electricity, 2 fans to move the heat. A pellet stove uses 2 fans, one for combustion and one to move the heat plus the auger motor but you use a lot less pellets than I do. I'd still like to know how many pound in a 24 hour day. I would burn it 24 hrs that what I do with my Harman pellet stove.

Volume or weight of pellets, unless you are going to count them individually ;)

So there is just a stack of pellets sitting on top of the burn chamber and rising all the way up to the pellet feeder? I would worry about CO2 leaking upwards into the house. Most pellet stoves have a pellet feeder that dispenses pellets down a tube every minute or two. While not dispensing the feeder tube is sealed shut. This requires a timing mechanism and an electric lever to open and shut. It adds cost and more things that can go wrong. But you do not want CO2 in your house.

Put some paper in befor the pellets so you dont waste so much propane. For my coal stove i start with propane i use it for maybe 1 to 2 seconds on a good day

Wouldn't it be more efficient to have a heat activated fan for wood stoves on the top. They make them friend.

Your dog or cat has learned teleportation....

I am not sure you really want to run your stove at 700F.... metal tends to warp, weaken and deform at those temps.

Love the idea but dang it's ugly, and no electricity???? what do the 2 fans run off a battery bank? super cool heat no matter

So it heats a small room? How big a space is it heating?

It must really be cold out there those deer look like they were frozen solid

Where can I buy one of these stoves?

Wood pellet fabrication is energy-intensive and therefore expensive!

To bad we don't get this in europe - this is ecactly what we need with our energy prices. 😞

They make fans that move air without electricity they run off a Peltier diode

needs chimney going up////too bad not a mass heater

That is a lot of gas to set wood on fire. I prefer making a small bonfire like fire under it to light it on fire.

Not quite what the title say ! "No Electricity" ? ? ? What about the big "Electric" fan running all day to disperse the heat ?

Looks a mess justt get a nice log stove

I would paint the wall behind the stove with ceramic paint that would help reflect the heat. I think if you drop temp 68-70F would use less pellets.

I have 2 ideas u might like. 1st mounting a box fan blowing straight down where u have the pipe curved. 2nd build a sand battery on top of ur burner tank, at the very least a large pot of water. I couldn't believe how much warmer I am at 60% humidity verse the 30% if I don't use a pot of water. Im guessing about one 20 pound bag that cost about $12 here a day....ps just use a couple of corks{fish bobbers} to fill the holes.