History and development of Matt Walker's rocket mass heaters

After 15 years of building, testing, and living with Rocket Mass Heaters, my understanding of what makes them work has changed quite a bit.

In this video I look back at the evolution from early J-tube heaters through Batch Boxes, Walker Stoves, brick bells, and the designs I work with today. What I got wrong, what experience changed my mind about, and what I think the early pioneers got right.

CHAPTERS

0:00 Cold Open
1:04 I Thought the Form Was the Technology
2:16 Then the Firebox Changed
6:36 The Stove Changed Shape
9:18 What Actually Makes It a Rocket?
11:03 What Didn't Hold Up
12:22 The Best Heater Is One You Can Live With
13:55 What They Got Right
15:08 What I Know Now

Easy to follow Rocket Stove and Cook Stove plans available here:

https://walkerstoves.com

What I love most about Matt's designs is that they are so much more aesthetically pleasing so more people would be keen to have them in their homes, which is why I chose to build one in the vague hope that more people would copy me.

We love you Matt!