EPA Approved Rocket Mass Heater

Hello everyone. Some of you may remember our last major post, https://permies.com/t/54288/Building-code-compliant-prefabricated-rocket where we informed everyone the good news that we had for the first time achieved a building code UL compliant rocket heater for indoor use. I'm happy to announce that we have once again broke history. As of this week, we have the worlds first EPA compliant rocket mass heater for indoor use. Below are the test results from an EPA certified independent testing lab. The new features of the EPA approved rocket mass heater include a refractory ceramic liner, a removable top plate for easy maintenance, a lower profile pellet hopper, and integral outside air intake. Furthermore, it can be integrated into thermal mass and still be building code compliant with the thermal mass. Also attached below is the approved owners manual and describes a couple of the various methods by which one can integrate thermal mass. This heater is a true shippable core, so to speak, albeit a somewhat small one. A glass firedoor will be debuting next year, it will be a drop in add-on/replacement. They will enter production later than everyone would like, sometime around October-ish, because thats how long its going to take for the EPA to approve the production itself. The heaters are both heavily pre-ordered and will be heavily back-ordered. Pictures and video's will be coming out in the next couple months.

We look forward to attending the Rocket Heater Jamboree this October.

I wanted to give special thanks to everyone on the permies forum, the permaculture community, and the phenomenal community of rocket stove and mass heater builders from which we drew and continuue to draw inspiration, idea's, and feedback from. This path has been a long fought battle for everyone, and this long overdue victory is quite a genuine pleasure. I hold hopes for a brighter future, and I look forward to meeting and seeing everyone in person this year.

Bravo!  Outstanding work.

The door has been cracked open.  Now it's only a matter of time before the distinction between Masonry Heater and Mass heater becomes blurred enough to permit DIY'ers to take advantage of this technology without having to worry so much about insurability.  Lol.  Look at those efficiency numbers.  This is going to...excuse the pun, catch fire!

Congratulations! and thank you for your service :)

Excellent.  Is there a picture of this installed with mass?

What's the shipping weight of one of these units?

BTW, you might want to get a proofreader to go over the manuals.  There are a few spelling mistakes etc present.

The manual is in a draft phase. In addition to spelling and grammar errors, it also still needs to be translated to French to be Canadian building code compliant.

shipping weight will be approximately 235 pounds.

Uncle Mud made a video of Gen 2 Liberator Rocket Heater hooked up to a thermal mass bench. I'll link his video below.



I hope that helped answer your questions. If you have more questions let me know.

Updates: we just launched our first promotional video of the RMH-2. We will be accepting pre-orders until the end of August. Special thanks to Uncle Mud, Ernie and Erica Wisner, Paul Wheaton, for inviting us to the Rocket Mass Heater Jamboree this October, and a big thanks to the community at larger for being so supportive of rocket heater technology. We listened to feedback from the community, and the new RMH-2 has many features that the old one didn't that many people in the community wanted to see, including an insulated refractory combustion chamber and riser, removable cooktop plate, lower profile pellet hopper, and integrated outside air intake. The heater is also approved for mobile home installation.

Following…….update please. Thanks

Jeremy Baker wrote:Following…….update please. Thanks

We're fully EPA approved and in production. Our full report is available for download on our website. We did it. Rocket Heaters are now EPA certified.

I thought I saw a list somewhere of RMH manufacturers, among which was listed the Liberator.  I like the Liberator and the fact that it has apparently jumped through the hoops set up by The Department of Making You Unhappy (The Department).  Where I live, however, The Department only cares about plumbing, mostly the septic system part. So, I am open to RMH manufacturers that haven't had to jump through The Department's hoops. In my google search the only manufacturer that comes up is The Liberator.  Again, I do like the Liberator but I would like to compare it with other RMH manufacturers. Some. perhaps, that may be more easily fitted with mass. Any info will be welcome. Thanks.

There is a model called the Gamera, made in Bulgaria, which is certified in Europe and I believe is in the process of US certification. Importing it is possible, as Uncle Mud (Chris McClellan) has tested one.

To the best of my knowledge, most of the other RMH retailers offer kits, not fully assembled Rocket Mass Heaters.

Dragon Heaters

Dragon Tech RMH (by a permie)

Sky Huddleston wrote:

Jeremy Baker wrote:Following…….update please. Thanks

We're fully EPA approved and in production. Our full report is available for download on our website. We did it. Rocket Heaters are now EPA certified.

What is website please?  And if you are in Cleveland,  can we skip shipping when time comes and just drive up from Youngstown?

Our website is rocketheater.com

We're currently backordered out by 3 months or so.

Very well done. I am not, at this time, a builder. I am an end user. I am happy to find a viable rocket mass heater that is almost plug n play. Thanks for bringing it to market.

Patiently waiting since 1/3/2022 for The heater to arrive. I have been harvesting some nasty evasive bamboo growing along the river banks. Hoping to see how  Sky’s heater handles it as a fuel source.

Jim Roberge wrote:Patiently waiting since 1/3/2022 for The heater to arrive. I have been harvesting some nasty evasive bamboo growing along the river banks. Hoping to see how  Sky’s heater handles it as a fuel source.

We have 50 heaters on the factory floor crated and awaiting to be shipped, and another 24 in production. We are producing approximately 12 heaters a week, so things are finally catching up.

I'm so pumped by this, because it's just a step away from RMH's getting manufactured, then legal systems being available in Canada next and also approved through insurance companies. I can't wait. Every rural home should have one, IMO.  Right now many of us cannot insure our homes if there is a homemade RMH because it is not an "approved" system. This is a game changer. Thank you and kudos to you guys!!!

Meadow Cern wrote:I'm so pumped by this, because it's just a step away from RMH's getting manufactured, then legal systems being available in Canada next and also approved through insurance companies. I can't wait. Every rural home should have one, IMO.  Right now many of us cannot insure our homes if there is a homemade RMH because it is not an "approved" system. This is a game changer. Thank you and kudos to you guys!!!

We are in production now and are taking orders. We do have backorders we need to fulfill first, so we're looking at 3-5 months out to ship if you place your order now. The website to get one if you want one is https://rocketheater.com/

Thank you all so much for your support throughout this entire process!

Will you be posting information on how one would go about intetgrating this heater with thermal mass? And do you feel it would work in a smallish yurt or dome shaped structure say about 20' across for heating and cooking?
Thanks for making this technology available!

Freyda Black wrote:Will you be posting information on how one would go about intetgrating this heater with thermal mass? And do you feel it would work in a smallish yurt or dome shaped structure say about 20' across for heating and cooking?
Thanks for making this technology available!

Integration into thermal mass is outlined in our owners manual. I have attached it as a PDF so everyone can see how this particular heater is integrated into thermal mass.



Chris "Uncle Mud" also did a lot of work in figuring out various ways Liberator Rocket Heaters can be integrated into thermal mass and has an excellent video series on the subject.

Hi there : ) what kind of chimney do we need to be on code when we install those rocket stove heaters? Thanks!