Rocket Stove Ceramic Fiber Core Plans: Build your own Ceramic Fiber Core for the ultimate Rocket Stove or Mass Heater

I can't believe this book cost me over $30! It is all of 25 pages of pictures for one (1) style of heater. I was expecting some detail and/or tips, and maybe even a little theory on how this type of heater varies from other heaters and it's benefits. I was looking for a heater for my small greenhouse. I have another book on rocket heaters and I thought they needed an exhaust vent for the smoke and fumes, in addition to a vent for heat. This design does not allow for that. Details...right!

Underwhelming information, but the measured drawings get you there...

I was looking for an easy way to build a rocket mass heater, and this book made the core build super easy.