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Off the grid, sustainable, efficient energy

Most recent

solar

Explaining Cells Voc Isc Bypass Diodes With Water Analogy

5 months ago 2 replies

solar

solar cooking

5 months ago 21 replies 1 5 5

alternative energy

Seed or Rice Stove, etc?

5 months ago 1 reply 1

alternative energy

low wattage inverter

5 months ago 9 replies 1

rocket mass heaters

Bell/stratification chamber size question…

5 months ago 7 replies 4 7

solar

Window Box Solar Heater?

5 months ago 13 replies 2 2

rocket stoves

Cast burn tunnel/riser and refractory metals

5 months ago 22 replies 6 2

rocket mass heaters

Double bell rocket mass heater to heat a yurt

5 months ago 41 replies [ 1, 2 ] 40 22

alternative energy

Electrical Energy US Patents Claims

5 months ago 5 replies

rocket mass heaters

Area above the J-tube

5 months ago 1 reply 1 4

solar

Solar water heating observations

5 months ago 6 replies

rocket mass heaters

Rocket Mass Heater Dreaming

5 months ago 14 replies 2 8 17

rocket mass heaters

Largeish Cabin RMH for WI Event

5 months ago 28 replies 8 6

solar

One country actively aiding small farmers

5 months ago 1 reply 1

rocket ovens

First mud oven

5 months ago 8 replies 5 6

solar

Seeking advice/expertise for a new solar system on tile roof in Catalunya/Spain

5 months ago 7 replies 4 2

wood burning stoves

Feedback requested on stove gadget

5 months ago 12 replies 1 1

rocket stoves

home-made ceramic fiberboard? and what's the embodied energy?

6 months ago 4 replies

solar

Why grass grows better under trampolines

6 months ago 3 replies 1 3

wood burning stoves

Wood burning - a very expensive "free" option

6 months ago 77 replies [ 1, 2 ] 1 6 53

wood burning stoves

Tips and tricks for splitting firewood

6 months ago 39 replies 2 7 22

rocket mass heaters

Chimney hat

6 months ago 38 replies 2 9 5

rocket mass heaters

Vermiculite

6 months ago 3 replies 1 5

solar

Solar power for 100 year old barn

6 months ago 12 replies 20 20

rocket mass heaters

First test fire of the season…..

6 months ago 0 replies 1 3

alternative energy

Using compost for forced-air room heating

6 months ago 9 replies 1

rocket mass heaters

RMH vs gasifier boiler

6 months ago 5 replies 3

rocket mass heaters

Using an existing platform as a RMH bench in barn

6 months ago 3 replies 4 4

solar

Thermal versus electric solar

6 months ago 4 replies 5

wood burning stoves

1980s Avalon AVH1000 - Hearth Pad Help

6 months ago 2 replies 1 1

wood burning stoves

Rocket stove query

6 months ago 4 replies 1 4

wood burning stoves

Ants...

6 months ago 2 replies 1

wood burning stoves

Firewood fall 2025

6 months ago 5 replies 7 4

rocket mass heaters

Heater "foundation"

6 months ago 4 replies 1

rocket mass heaters

Rocket mass heater with 8" J-tube and bell

6 months ago 40 replies [ 1, 2 ] 60 14

alternative energy

Sun Scoop converted to solar dehydrator.

6 months ago 3 replies 6 1

rocket stoves

Rocket Mass Year-Round Hot Tub?

6 months ago 11 replies 3

alternative energy

Staying warm in winter (inside)

6 months ago 28 replies 1 1 10

wood burning stoves

GSW Model 820 Wood Stove

6 months ago 7 replies 2 1

rocket mass heaters

RMH plans- help with chimney lenght, negative pressure, channel layout.

6 months ago 1 reply 8

rocket mass heaters

Best Practices for Using an Existing Chimney to Vent a Masonry Stove

6 months ago 10 replies 5 3

alternative energy

Jean Pain's Natural power plant. Why isn't this more well known with homesteaders?

6 months ago 4 replies 2 1

alternative energy

Not a solar dwarf, and not a giant

6 months ago 10 replies 6

solar

Thermal solar collector panel

6 months ago 21 replies 8 15

rocket stoves

RMH with copper coil

6 months ago 11 replies 6
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