Months of preparing and research and we STILL found out about things which we SHOULD have done differently. Where were those tips when we needed them? We learned things that every one that's considering building a rocket mass heater needs to know.Written by Ray & Randi Dudley, authors of "Types of Burn Chambers for Rocket Mass Heaters", readers will come away with resources such as websites, videos, dvds, forums, tips, photos and ways to avoid the mistakes they made.Tips and lessons about rocket mass heater construction. Learn from our mistakes and take advantage of the resources we had to scour the internet to find. This book places many of the sites, blogs, videos, books and forums you'll be needing right in one location.Plus a newly added BONUS chapter complete photos of our rocket mass heater workshop where we built two heaters. One conventional and one with glass windows in the burn chamber!