its helpful to see the temperatures taken across the elements of the heater. demonstrates how the wood is being used more efficently compared to a traditional wood stove. rocket mass heaters are awesome, i want to have one in my house some day!

Beautiful! Warm and cozy, and no electricity needed. Or anything else, other than a few sticks.

I'll be building one soon to substantially lower my heating bill!

@beaumdavidson

4 ай бұрын

How cold does it get where you live, Tina?

@tinalwolf

4 ай бұрын

It freezes and occasionally gets much colder. Our heating bill is hundreds each month

@tinalwolf

4 ай бұрын

It's been in the single digits this week with "feels like" below zero.

She does a great job showing the process, awesome!

this is fucking awesome. in the middle of record cold temperatures 30 degrees below average for the time of year, this is a life saver, literally.

That blows my mind! The tiny pomoly wood stove I use in my camper takes far more wood and only brings it up to 50°.

I love the real numbers! Nothing better than to prove to the world how well a rocket works.

Super cool

Good video and info! Love the shorter video format with all the core info.

This video was so eye-opening, thank you for sharing.

Ooh I like this video and that's a beautiful rocket mass heater..! I really, really want to build one some day. Mine will be in an outdoor structure, almost like tipi. Earlier when I have thought about it, I was planning it to have a cob bench, but now that I think about it a pebble style mass heater like this might be the way to go with our resources. Oh well, that's still far away in the future, and when I actually start the real planning, there are so many people that are happy to share their knowledge in the permies forums that it's going to be easy to polish the plans to an awesome reality.

Great video 👍

Great to see these kinds of videos being put out. I imagine the burn time is only like an hour or so. Means you now have way more time in your day for other tasks(infecting more brains with permaculture). Still surprises me that this stuff needs proof. Who knows maybe the more its put out and reminds people, the more people will see it. Great job! Defininetly liked the ending with the beat up truck crashing into the person.🤣

@paulwheaton

4 ай бұрын

I would think that interest would be a thousand times greater than it is.

@fredjackson6305

4 ай бұрын

@@paulwheaton I can only imagine you've said this many many many times before.

@paulwheaton

4 ай бұрын

@@fredjackson6305 Hundreds. Monthlyish is going out now, quoting you.

@goldengryphon

4 ай бұрын

@@paulwheaton If I remember my facts correctly, it takes about 8 viewings for the average person to key on any data/image. After that, you have to work through any of the biases that might exist. I believe that a rocket mass heater would work, I just have trouble figuring out where it would fit into my life. I live in a mobile home, so a metal crackerbox with high potential for problems and generally difficult to modify substantially. I think this would be a better system for a more substantial home, or at least one that's not quite so flammable and wrought with structural defects.

@paulwheaton

4 ай бұрын

@@goldengryphon this video is in a mobile home.

How much wood used per year

@paulwheaton

4 ай бұрын

0.6 cords for a very cold winter. We hope to do things to get that down to 0.4. kzread.info/dash/bejne/aZyXvJOLprqaZJM.html

I have enjoyed this rocket mass heater in person! It really does work just like in this video. I can't wait to put one in my house.

This is our first winter with a rocket mass heater & I will never not have one. There are some things I will tweak this summer but the difference is night and day. I recommend anyone interested should grab Ernie and Erica's book, RMHs are game & life changers in a great way 💖💖💖

Really amazing

We are adding RMH to our build design.

This video is so well timed! I tried sharing a link to it in response to posts on Twitter with the hashtag #coldwave (OK, not to the ones about the coldwave in India - they are still above freezing but just really frickin' cold for India) but I've gotten no engagement.

Excellent video, Andres, Paul, & Samantha. Paul, isn't there a sign about not putting your shoes and stuff on the granite slab because they can melt or something?

@paulwheaton

4 ай бұрын

Nope.

I love the efficiency of this. Other than describing it as "a few sticks", would you mind re-doing and essentially the same video and WEIGH the wood you put in? I think that would be a great add for your channel. I want one or something like it.

@brucea550

4 ай бұрын

I would like to also know the size of the total area being heated and the temperatures at the extremities. It’s naturally going to be warm right next to any woodstove. It would be more convincing to also show temps at the farthest corners of the total area in all those time frames. I like the concept but I doubt I can heat my 1600sf two story house at -20 on ‘a few sticks of wood’. Even Peter V says on the batch box website that it may not be an adequate system in really cold locations.

@mrwayneright

4 ай бұрын

Since seeing this, I have watched a bunch of your other videos, and others on Rocket Mass Heaters. I knew a tiny bit before but a lot now. There are MASONRY HEATER experts that build and ship cores and do 2 fires/day of 50-60 lb of wood ea. (depends on size of house and LOTS of other factors of course) and they are very efficient, but you seem to be using far less wood than that. Please consider a do-over and weigh the wood and describe the house size and how its insulated.

Love that RMH!

I've been obsessed with MHRS for a good while. How do u all get insuarance coverage? I got the Liberty rocket stove last year bc our insurance said it needs to be ul rated. Still dont have it going bc there's a back draft. Uncle Mud has been helping me, Im so grateful for him.

Rocket mass heaters are so hot!

What is the area being heated? Anything else going on in the house, like cooking, exercise, lighting, etc? It seems like you're getting more btu's out of the wood than is possible.

@paulwheaton

4 ай бұрын

Most wood stoves send most of the wood out the roof. Here is a video about the efficiency kzread.info/dash/bejne/c2GsrZmvisedns4.html

a great job

Did she only add wood once. I am just wondering how long do you have to be close by to keep putting wood in.

@candacewilliams6869

4 ай бұрын

One firing.

Pretty color on the barrel. Is it painted or a certain type of metal?

@paulwheaton

4 ай бұрын

Stainless steel. It developed its own patina.

@tabithaelliott6855

4 ай бұрын

@@paulwheaton cool

I wish you showed the temperatures in Celsius as well. It would help in spreading this idea.

@beaumdavidson

4 ай бұрын

Good point. Maybe another version, or another video.

Ok, fellow permies. Let's lean on our political representatives to give this technology a fighting chance

@brucea550

4 ай бұрын

The two roadblocks are codes and insurance. These are not UL listed (obviously) and there is no provision for that type of diy wood heating device.

How much of this efficiency is a function of your house insulation?

@paulwheaton

4 ай бұрын

It is a double wide that does NOT have an enclosed porch. We have some shades on the windows (you can see) but not proper winter curtains. So there is some, but not a lot.

Can you show please what the air temps are near the exterior walls and even in another room

How much does this mass weigh? I ask because there is a relationship with mass and radiating time.

The UK government introduced rules last year that any wood burning stoves had to use kiln dried wood to prevent emissions. At the same time they're telling us the particulate emissions in a home with a wood burning stove were higher than it we were sat on the sidewalk next to stationary traffic breathing exhaust fumes. Do you have any info on particulant emissions using an RMH ?

@paulwheaton

4 ай бұрын

does this help? kzread.info/dash/bejne/nXuVqdaIaLDRgc4.html

I watched this when it first came out. Last night, I was thinking, how much wood did you use. Judging by the time and comments, it seems it was just what was used to start the fire. Can you clarify?

@paulwheaton

4 ай бұрын

My guess is that after the initial fire, we filled the wood feed twice. Note that the wood feed is pretty small, so we are talking about a rather tiny amount of wood.

@fk319fk

4 ай бұрын

@@paulwheatonThank you. While tiny, your guess is 3x my guess. I look forward to the next video where you let it slip that you refilled twice.

@paulwheaton

4 ай бұрын

@@fk319fk I feel like we have profound information to fill about 800 more youtube videos. At the same time, when we have put videos out in the past with profound information, they were getting just 700 views. So we are transforming the way we do videos (I hope you like it). Our goal is to get 10 minutes of content packed into a 2 minute video. And offer longer versions on patreon. The new "packed" videos will, hopefully, get 100,000 views - so we are infecting more brains. And, hopefully, patreon will get funded so we can pay for more and more content to get onto youtube. There is a LOT to share. But it is difficult to do the work of sharing if hardly anybody looks at it. There is more about this burn currently at patreon.

Question: an a small rocket heater work inside a fireplace? How would it be different from regular wood in the fire place? I have seen tiny rocket heaters. Just curious about how this could work for a regular house...

@paulwheaton

4 ай бұрын

I know that it has been done several times. Check permies to see if there are pics and stuff.

@UncleMud

4 ай бұрын

Modern fireplaces are designed more for viewing the flames than for clean efficient combustion, They are rarely above 50% efficient while they are burning, creating a lot of smoke and letting even more warm air up the chimney to keep the room from filling with smoke. Overall they usually suck more warm air out of the house than they put in making them negative efficient. A rocket heater has a small insulated firebox that burns a little bit of wood almost completely, even the smoke gets burned so the heat from the clean exhaust can be captured and stored in a mass bench in the room before the much cooler exhaust is sent up the chimney. Rocket Mass Heaters can be installed in fireplaces, but they work best if their hot surfaces are in the room not tucked back in the fireplace. This Liberator install I did is one example kzread.info/dash/bejne/hGt6rtKPXbLKdpc.html it works a lot better since we added a mass bench beside it to capture the heat from the exhaust. These can also be hand built, but it can be challenging to get code approval.

@FlyinDogRecords

4 ай бұрын

@@UncleMud Very nice. I also checked out the stove rocket heater from Africa. I love the tile work under the rocket heater! Is it there for a purpose or just for decoration?

@UncleMud

4 ай бұрын

The tile covers the very important fireproof hearth board that protects the wood floor from radiant heat and dropped coals and sparks.@@FlyinDogRecords

How far of range does the stove produce heat?

@paulwheaton

4 ай бұрын

At 2:30, the kitchen is at 73 degrees. i would guess that the bedrooms are at 71.

2 different times they measured 69° and nobody said Nice. I'm disappointed 😂😂

Doesn't seem efficient at the egress at 139° Could this loss be redirected in another build?

@paulwheaton

4 ай бұрын

First, if we measure 139, it is probably more like 160. Second, conventional wood stoves have an exit temp of 350 to 600. So I think we are doing really good. Third, we find if the temp gets too low, the draw gets too reduced.

@josephyarbrough9316

4 ай бұрын

@@paulwheaton That 3rdly said everything I needed to know. Thanks Paul

@josephyarbrough9316

4 ай бұрын

@@paulwheaton Can a fireplace be retrofitted for RMH? I have 18" columns on each side.

@paulwheaton

4 ай бұрын

@@josephyarbrough9316 Yes. And there are a lot of details. Check out the rmh forums at permies to get info from people that have done it before.

@josephyarbrough9316

4 ай бұрын

@paulwheaton Could you possibly post a link to "any" successfully transformed fireplace? Carla Burke's story was intriguing, but it was scrapped in the end. Her fireplace is pretty much like mine, though not as beautiful. If I should post a new thread for debate? I could do that. Lemmeno

I want one. I'm relatively handy. Are they easy enough to build for a somewhat intelligent person, just from the instruction videos that you sell? I'm not fond of traveling or group workshops. 😏

@paulwheaton

4 ай бұрын

Many people have built them. woodheat.net

Hey paul wheaton thank you for this video. Hey, I just sent you an email about the DVD's I bought from you. We are getting ready to put hours together and was hoping to check out the videos once again.

@paulwheaton

4 ай бұрын

I think you are now all sorted!

How big is your home and is it a wood frame?

@paulwheaton

4 ай бұрын

1350 square feet - double wide (wood)

@SusanStoneSalas

4 ай бұрын

Wow!!! Impressive! @@paulwheaton

How do i find an experienced builder to install one in my house? Most ppl (including myself) wouldn't take this on without someone to work with who knows precisely how to build it! So how do I find someone?

@paulwheaton

4 ай бұрын

permies.com/w/rmh-builders-list

Amazing technology, what’s the ratio? Firebox/gasifier/steel drum/exhaust flue length/amount of mass/final exhaust pipe length? How do you determine the heating load when constructing the mass heater. The DOE maximum on my boiler is 180,000 btu per hour it’s operating twice a day for two hours and the heat in the cast iron radiator’s keeps us warm for a while. Since my heating loss calculation for my house is 130,000 btu and I have 4 apartments I would need to construct 4 rocket mass heater’s and operate each individually to get the desired effect. How do you design the system ? Do you design for the coldest day of the year with at least one window open? Do you design for heat loss calculations? Do you design for maybe it’s going to work, they can open a window if it’s too hot?

I've been looking into this type of heating but part of me is turned off by the lack of esthetics.

@paulwheaton

4 ай бұрын

some pictures of others permies.com/w/beautiful-rocket-mass-heaters

@incanada83

4 ай бұрын

@@paulwheaton Thank you :-)

So how do we get one installed ...I'd be MORE than DELIGHTED to get rid of my GAS fireplace. But who does this...who permits it....etc.

@paulwheaton

4 ай бұрын

start here permies.com/w/rmh-builders-list

@cherylwheeler9471

4 ай бұрын

@paulwheaton this looks like only information and not a list of builders. I'd like to find an actual builder in Western Washington. It says Walker Stoves is one but the link is broken. 🤷‍♀️

How many square feet are you heating?

@paulwheaton

3 ай бұрын

This building is about 1350 square feet

For years, I've admired the concept of RMH but no way on earth could I convince my wife to have a 55 gal barrel in the house. I have a 32'x50'x10' basement which could avoid the 'appearance' issue were I to install a large RMH down there. I have 6.5 acres of pine trees which could easily provide a lot of creosote filled wood. Assuming the high temp in the riser, can I assume the creosote is not as great an issue as in other wood stoves? As my gestapo NY State gov wants to ban gas appliances, this could be an end run around her dictatorial actions.

@paulwheaton

4 ай бұрын

Rocket mass heaters burn creosote every burn.

I am looking for about your product place lace me a message. When I post this, I am looking for more information on this. Looking more on this builds thing on it .

@paulwheaton

4 ай бұрын

You can see this build at woodheat.net

Any Former Woofers in Utah County that wants to build me one? Will pay cash.

God, Yhvh gave us a way

Would take up too much space in a tiny house

@paulwheaton

4 ай бұрын

We have about six spaces hovering around 100 square feet that have a tiny rocket mass heater.