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Off the grid, sustainable, efficient energy

Most recent

rocket stoves

We're building a Cob Barrel Oven w. pre cast Rocket Mass Heater Core. Fri, June 27th. Come on out!

11 years ago 4 replies

solar

Solar cells from Bath salts?

11 years ago 1 reply

rocket mass heaters

temps per size of systems

11 years ago 8 replies

rocket stoves

Article: Well-tended Fires Outporform Modern Cook Stoves [rocket stove comparison too]

11 years ago 2 replies

rocket mass heaters

6" Stainless Chimney question?

11 years ago 5 replies 1

rocket mass heaters

Heavy wall aluminum pipe question?

11 years ago 5 replies 1

wood burning stoves

Can I improve my metal box stoves?

11 years ago 8 replies 2

rocket mass heaters

Got my feet wet today!

11 years ago 6 replies 3

rocket mass heaters

Horizontal Riser

11 years ago 24 replies 1 9 3

alternative energy

Comparing gassification with steam

11 years ago 53 replies [ 1, 2 ] 1

alternative energy

Techniques for cooling offices and homes with ground temperature water, etc. via convection?

11 years ago 3 replies

wood burning stoves

Used Wood Stove Advice

11 years ago 3 replies

hydro

broken hydrolic water ram help!!

11 years ago 6 replies

rocket mass heaters

What is the ideal spacing of floor joists for supporting the weight of a RMH?

11 years ago 39 replies 8 1

rocket mass heaters

radiant heat / directional radiant heat

11 years ago 3 replies

rocket mass heaters

Help needed Barrel Gaps

11 years ago 1 reply

conservation

applience energy use

11 years ago 4 replies

rocket stoves

Hot water from a Rocket Stove.

11 years ago 12 replies

solar

Solar Sizing for a Water System

11 years ago 9 replies

rocket mass heaters

Stirling Engines and RMH...Anybody any thoughts on this?

11 years ago 3 replies

alternative energy

I think I have seen the future

11 years ago 3 replies

conservation

How much cooler is it under a large tree

11 years ago 9 replies 7 1

solar

Solar Heating - Packed (Pebble) Bed Storage?

11 years ago 22 replies

alternative energy

No Range anxiety with this Electric Car

11 years ago 17 replies

solar

thermosyphon solar hot water heater

11 years ago 5 replies 1

solar

Good resource for DIY solar distiller

11 years ago 1 reply

rocket mass heaters

Rocket Stove Firepit, Oven, and Multi-Function Cooker update

11 years ago 6 replies 2

conservation

Efficient Air Conditioning

11 years ago 15 replies

conservation

does anyone know where to find an affordable absorption chiller?

11 years ago 3 replies

solar

simple question about solar panels

11 years ago 6 replies

hydro

6gpm with less than 10' of head. Anything I can do?

11 years ago 4 replies

rocket mass heaters

bench temps

11 years ago 2 replies

rocket mass heaters

heat riser material question

11 years ago 4 replies

alternative energy

wood pellet boiler running organic rankine cycle power plant?

11 years ago 5 replies

rocket mass heaters

do I have enough space?

11 years ago 4 replies

wood burning stoves

New wood stove / gassifier

11 years ago 5 replies

rocket stoves

update for better cooking

11 years ago 2 replies 3 1

rocket mass heaters

Another smokey Burn question !!!

11 years ago 25 replies 7

wind

Wind Belt Micro Power Generation

11 years ago 0 replies 1

rocket mass heaters

RMH: Cast in-place riser tube materials formula

11 years ago 7 replies 1 3

hydro

Water wheel torqe horsepower

11 years ago 2 replies

bicycle

ELF - an electric assist commuter tricycle vehicle

11 years ago 18 replies 2 4 2

rocket stoves

Simple barrel rocket heater - without a mass

11 years ago 8 replies

alternative energy

phase change materials for heat sinks

11 years ago 22 replies
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Forums
energy

rocket mass heaters 45042

rocket stoves 30258

alternative energy 18463

wood burning stoves 14164

conservation 6868

solar 11685

hydro 2317

wind 1174

biogas 984

biodiesel 553

transportation 3185

bicycle 1908

rocket ovens 2449