This Course has ended. Please click here to see current Courses. or click here to browse our interactive map. Dates and times 22 Oct 16 Cost 200.00 Course summary Learn how to construct a rocket mass heater made out of recycled materials, fire bricks and cob. This mass heater will also heat water and be given an up-to-date design and finish worthy a 21st century home. The Rocket stove is an affordable and democratic technology that everyone can build, empowering us to be in control of our own heating bills. Sara Tommerup Course type Specialist Engagement style Face to face Share this course Copied to clipboard