Concrete Rocket Stove Heater
If you have around 40 to invest in this project then you could actually have a really heavy duty rocket stove made out of concrete.
Concrete rocket stove heater. Rocket mass heater runs along the 40 back wall. The lowest opening of this j shape functions as a feeding hole. An efficient tweak to the shape of a metal stove results in a rocket stove. If you want indestructible durability build a gravity fed carbon steel rocket stove.
You can use ordinary concrete and cement mortars in the casing outer 3 4 of the heater just not in the firebox area. Concrete mass is 15 deep and 20 high. Build a rocket stove in one minute with 4 blocks. Or if portability is a requirement you can build one out of a metal coffee can and a regular sized food can.
Every four feet has two 8x8x16 concrete blocks to allow flow of cool floor air through the mass. 55 gal drum for outer containment. A conventional wood stove uses a lot of the heat to push the smoke out of the house. While it may not precisely be readily available to everyone or when you are in a survival mode concrete rocket stoves are still excellent because of its durability.
Its main characteristic is a j shaped tube. With a rocket mass heater the heat gets absorbed into the mass and extracts as much heat as possible before the exhaust leaves the house. You have to create molds and purchase cement for this version. 5 you keep far more heat inside your house with a rocket mass heater than with a conventional wood stove.
If you re not looking for portability you can build a rocket stove from concrete blocks. This rocket stove certainly packs that element with it. 35 gal drum containing pearlite insulation. One of the most common ways to build a rocket stove is to use concrete.
The 90 degree angle in the tube ensures that the heat from the wood in the feeding hole is drawn up into the combustion chamber. 8 system with fire brick for j channel.