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Off the grid, sustainable, efficient energy

Most recent

rocket mass heaters

Need Help! Finally Building RMH in Ukraine, but . . .

6 months ago 3 replies 1 7

rocket mass heaters

How do you identify/differentiate firebrick?

6 months ago 7 replies 4

wood burning stoves

how a RMH uses 1/8 of the wood of a 75% efficient wood stove

6 months ago 105 replies [ 1, 2, 3 ] 3 10 2

rocket mass heaters

Mass heater (non rocket) in greenhouse

6 months ago 7 replies 1 2 1

rocket mass heaters

Sources for 1 inch, 36 x 48 ceramic fiber board

6 months ago 7 replies

alternative energy

Gravity Lighting and the Grandfather Clocks

6 months ago 1 reply 4 3 2

rocket mass heaters

Rebuilding and remodeling the Shop Dragon

6 months ago 17 replies 64 26

conservation

Anyone build their own FREEZER?

6 months ago 13 replies

rocket ovens

Rocket bread oven in existing BBQ-site with salvaged oven

6 months ago 24 replies 24 11

bicycle

[Free] Supergo Bike Shops logo

6 months ago 1 reply 2 1

rocket mass heaters

Brainstorming our next rmh - shorty core? multilevel?

6 months ago 17 replies 4 6

rocket ovens

Foundation for rocket oven

6 months ago 15 replies 7 9

rocket stoves

Rocket Stove Hot Tub Heater - Boiler or Tankless

6 months ago 2 replies

solar

Solar Energy Cooking?

6 months ago 11 replies 4 5

rocket mass heaters

Heat shield for RMH

6 months ago 23 replies 2 7

alternative energy

DIY Fridge with water from stream?

6 months ago 13 replies 1

alternative energy

A/C just went out, 3rd consecutive summer

6 months ago 16 replies 6 6

rocket mass heaters

Permies Poll: Do you currently own a Rocket Mass Heater?

7 months ago 7 3

rocket mass heaters

Height of exit chimney for RMH

7 months ago 8 replies 3 1

rocket ovens

Is my soil good enough for cob / alternative clay-free mix for refractory mortar?

7 months ago 3 replies

hydro

Tidal hydro

7 months ago 3 replies

rocket mass heaters

Horizontal duct and chimney length for 6 inch RHM

7 months ago 7 replies 2

rocket stoves

Stone biochar kiln

7 months ago 2 replies 2

hydro

recirculate water from waste valve on ram pump

7 months ago 7 replies 1

solar

Passive solar honeybee hive heaters

7 months ago 6 replies

bicycle

Human powered chaff cutter from bike parts

7 months ago 4 replies 2

rocket ovens

Are old bricks hazardous?

7 months ago 11 replies 5

rocket mass heaters

Wooden ladder near rmh

7 months ago 17 replies 2 3

rocket mass heaters

difference batchbox vs shorty bells

7 months ago 1 reply

bicycle

How to repair a bike trailer to hold kids?

7 months ago 11 replies 5 6

rocket mass heaters

Mass bench fed directly by a modified sidewinder Shorty core

7 months ago 6 replies 12 13

conservation

20 ways to REALLY reduce your summer utility bills

7 months ago 118 replies [ 1, 2, 3 ] 1 5 2

rocket mass heaters

How much does it cost to build an RMH

7 months ago 9 replies 6

bicycle

Quick and dirty Video review of Ridstar E26 Pro + short ride clip

7 months ago 3 replies 1

alternative energy

Self-powering water pump idea

7 months ago 20 replies 2 3 9

hydro

Low voltage on my micro hydro turbine

7 months ago 13 replies 5 3

alternative energy

Batch thermosiphon

7 months ago 2 replies

hydro

Off-Grid Solar Water Pumping Using Multiple Espresso Machine Pumps (ULKA Type)

7 months ago 7 replies 4

alternative energy

Renovating solar cooker

7 months ago 5 replies 1 1

solar

Solar Air Conditioner and Heater

7 months ago 34 replies 1 1 2

rocket mass heaters

RMH joining stove pipe.

7 months ago 8 replies 1

rocket mass heaters

Horizontal vs vertical burn tube?

7 months ago 20 replies 7

alternative energy

Off-Grid DC Power: How to Use and Store Solar, Wind, or Hydro Energy Without Batteries

7 months ago 6 replies 1

rocket mass heaters

Peter channel for my dragon

7 months ago 18 replies 8 8

rocket stoves

What are some ways to test the r-values of different cob mixtures?

7 months ago 2 replies 1
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Forums
energy

rocket mass heaters 44321

rocket stoves 30200

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conservation 6502

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hydro 2310

wind 1162

biogas 984

biodiesel 548

transportation 3094

bicycle 1878

rocket ovens 2414