Fireplaces Suck - 90% in North America Have a Terrible Design
20:05
Building a Rocket Mass Heater uses 70% less wood
34:31
Simple Coal Stove Test Was Successful - What are the possible uses?
17:58
Finnish masonry heaters. -The Russian Rocket (Pönttöuuni)
22:00
Concrete Is Expensive. Do This Instead
21:04
Do I need a chimney liner for my wood insert? (Or is it a sales scam?)
23:04
THIS STOVE EXPLAINED - Double Shoe Box Rocket Stove With Bench Thermal Mass Heater
15:46
What can be learned from a 17th century American town
13:09