Rocket Mass Heaters
Date: Thursday, September 14, 2017 and Friday, September 15, 2017
Time: 10:00 am – 5:00 pm
Location: Northern Susitna Institute
Class Fee: $100
A wood stove is well known to be on of the most common heating systems for much of Alaska. Rocket Mass Heaters (RMH) are a low cost masonry stove approach appropriate for many locations. A rocket mass heater is a wood fired heat source, but can be more safe and efficient in combustion and comfort. The “rocket” combustion unit is designed and built to burn hot and efficient without worry of creosote build up and the resulting risk of stack fire. By harvesting the heat from the rocket fire into a solid mass, the warmth is stored and released over a longer time period. This makes it possible to have a cabin not freeze when absent for several days. The mass can be made out of mostly locally sourced gravel, sand and clay. The combustion unit is put together in a variety of ways with fire brick, metal, and a barrel if desired.
In this two-day workshop, we will be introducing participants to the theory, materials and construction of rocket mass heaters. Day one will be devoted to the design, construction and operation of combustion units, and day two to the design, construction and operation of the thermal mass battery. We will playing with basic natural materials such as earth, sand, rock, straw, wood, metal, water and fire. There is a completed RMH onsite to see and feel what we are talking about. From mocking up and firing combustion units to mixing materials and building a sample mass section, people will be connecting with the construction of “the people’s mass heater”!
Lasse Holmes lives in a timberframe and strawbale cabin that he built in the mountains overlooking the Kenai Peninsula in Homer, AK. Through his business, Canyon Arts School of Natural Building, he focuses on natural building, including commercial applications. Lasse previously built the rocket mass heater on the Northern Susitna Institute campus.
For More Information
Please see our General Information & Class Policies page for more information about registration, cancellation, age requirements, and directions.
Begin the registration process by clicking the “register” button. You will be given the option to pay with a credit card using PayPal, cash, or check. Your registration is not guaranteed until full payment is received. Please note that the class may be cancelled due to low enrollment, so please register early!