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Off the grid, sustainable, efficient energy

Best ever

rocket mass heaters

Matt Walker tiny cookstove build in Portugal

217 replies 32 187 233

rocket mass heaters

How to make your Rocket Stove more "rockety"

85 replies 2 4 4

rocket mass heaters

Advice on a RMH build in Hokkaido Japan

623 replies 14 969 141

rocket mass heaters

Are you interested in building a rocket mass heater? What is holding you back?

183 replies 29 224

rocket mass heaters

Rocket stoves in Greenhouses , our own forum topic

395 replies 21 102 22

rocket mass heaters

RMH for Dummies! Please help guide me through my first build!

451 replies 7 213 71

conservation

It is 2026 and incandescent is still better than LED

218 replies 15 18 25

conservation

making the best of electric heat

462 replies 2 43 20

rocket mass heaters

compact 6" RMH hybrid with cook top and dutch oven

284 replies 14 85 4

bicycle

Show Us What You Are Hauling On Your Bike

125 replies 5 96 98

rocket mass heaters

portable rocket mass heater

189 replies 8 20 3

rocket mass heaters

beautiful rocket mass heaters

55 replies 2 33 28

wood burning stoves

Matt Walker continental stove build

146 replies 97 113

rocket mass heaters

using metal in the burn tunnel and heat riser

92 replies 5 29 31

rocket mass heaters

Greenhouse Rocket Stove

49 replies 2 9

rocket mass heaters

First Rocket stove heats water with pics

122 replies 11 6 3

rocket mass heaters

are rocket mass heaters "appropriate technology" given the availability of efficient woodstoves?

155 replies 5 5 29

alternative energy

Building 100 AH LiFePo4 Battery Box

198 replies 3 165 35

rocket mass heaters

Shorty Core gets a bell

89 replies 70 60

rocket mass heaters

Tiny House Cook Stove and Heater

104 replies 7 19 28

More »
Best this year

rocket mass heaters

Are you interested in building a rocket mass heater? What is holding you back?

183 replies 29 224

rocket mass heaters

New Build First Generation Batchbox 6" Double Brick Bell

43 replies 82 76

rocket mass heaters

A Hidden Cost of RMHs!

36 replies 2 9 34

rocket mass heaters

shorty core replacing bbr with sidewinder

121 replies 1 27 11

rocket mass heaters

Heavy Snow, The Smoke Shack takes a direct hit

19 replies 26 36

rocket mass heaters

Kees' cottage rocket

106 replies 2 64 15

rocket mass heaters

Cushions for the rocket bench

34 replies 1 38

rocket mass heaters

8"J-tube with Bell to heat living room and kitchen

43 replies 1 33 46

transportation

What's inside?

21 replies 26 16

transportation

Good Permie Cars...

81 replies 8 2 15

wood burning stoves

Anybody used these Barrel Stove Kits?

20 replies 1 2 25

rocket mass heaters

First flights of the Studio Dragon

13 replies 33 31

rocket mass heaters

Guidance on RMH build in a light wood construction

29 replies 15 31

rocket mass heaters

Shorty sidewinder, 200 mm (approx. 8") system, lots of mass

27 replies 2 40 34

rocket ovens

Andalusian Pizza Rocket

17 replies 5 32

solar

Solar panel angle for grid tie vs. summer offgrid vs. yearround offgrid

14 replies 2 1

wood burning stoves

Mini wood-burning cookstove for a tiny house

30 replies 3 23 39

alternative energy

Staying warm in winter (inside)

28 replies 1 1 10

rocket mass heaters

Holding the heat overnight, the importance of shutting off the air flow.

13 replies 8 23

wood burning stoves

Masonry Heater

19 replies 11 27

More »
Most recent

alternative energy

Building 100 AH LiFePo4 Battery Box

2 hours ago 198 replies [ 1, 2, 3, 4, 5 ] 3 165 35

wood burning stoves

Firewood Tracker

7 hours ago 5 replies 1

rocket stoves

Aprovecho Now Builds 6 Inch Rocket Stoves for Cooking

2 days ago 0 replies 1

rocket ovens

Update on the rocket kiln?

2 days ago 2 replies 1 2

solar

Running solar wires long distance

2 days ago 13 replies 1 8

rocket mass heaters

Are you interested in building a rocket mass heater? What is holding you back?

2 days ago 183 replies [ 1, 2, 3, 4, 5 ] 29 224

wood burning stoves

Matt Walker continental stove build

2 days ago 146 replies [ 1, 2, 3 < ... <7, 8, 9 ] 97 113

solar

Grid Intertie: Interesting challenge of Net Metering law in Minnesota in the works....

3 days ago 7 replies 2

transportation

What the heck vehicle do I get?

6 days ago 23 replies 2

rocket mass heaters

RMH in basement

1 week ago 2 replies 1

solar

Recommendations for sealing shattered solar panels

1 week ago 13 replies 1 3

rocket mass heaters

Batchrocket icw barrel and bench (as a bell)

1 week ago 27 replies 16 26

conservation

Cool the person not the space: methods of doing it

1 week ago 66 replies [ 1, 2 ] 1 2 24

alternative energy

Hydrogen Augmentation of Vehicle Fuel

1 week ago 26 replies 2 5

solar

Solar hot water collector and storage

1 week ago 6 replies 7 1

transportation

What is the most fuel efficient car?

1 week ago 27 replies 1 4

transportation

farm utility vehicle, 3rd iteration

1 week ago 20 replies 2 5 5

transportation

best mileage in town driving

1 week ago 2 replies 3

rocket mass heaters

Schlieren imaging for rocket mass heaters

1 week ago 0 replies 1 2

rocket mass heaters

Rocket Mass Off Season Smell

2 weeks ago 8 replies 1 4

transportation

Car buying

2 weeks ago 13 replies 11

rocket mass heaters

8"J-tube with Bell to heat living room and kitchen

2 weeks ago 43 replies [ 1, 2 ] 1 33 46

transportation

Natural Car Storage

2 weeks ago 2 replies 1

rocket mass heaters

8" J-tube with half barrel bench

2 weeks ago 8 replies 2 11

wood burning stoves

Walker continental stove and flooring

2 weeks ago 2 replies

solar

What could have been: solar power in colonial India

2 weeks ago 3 replies 3

bicycle

The right bike for growing old, cargo, versatility, and everything... ;)

2 weeks ago 11 replies 1 12

wood burning stoves

Masonry Heater

2 weeks ago 19 replies 11 27

alternative energy

A/C just went out, 3rd consecutive summer

1 month ago 18 replies 6 6

rocket mass heaters

Guidance on RMH build in a light wood construction

1 month ago 29 replies 15 31

alternative energy

Cooling with a closed system

1 month ago 7 replies 2

conservation

It is 2026 and incandescent is still better than LED

1 month ago 218 replies [ 1, 2, 3, 4, 5, 6 ] 15 18 25

wood burning stoves

Third day of wet cool temps

1 month ago 3 replies 1 6

rocket mass heaters

Seeking Input: How much mass around a split barrel bench?

1 month ago 12 replies 5 5

rocket mass heaters

6" J-tube RMH with half barrel stratification bench

1 month ago 17 replies 2 7

wood burning stoves

Mini wood-burning cookstove for a tiny house

1 month ago 30 replies 3 23 39

solar

Monocrystalline vs polycrystalline for small off-grid cabin - real world experience?

1 month ago 7 replies 3

rocket ovens

10 gallon sized portable rocket oven

1 month ago 9 replies 4 4

rocket mass heaters

Excessively Planned 6" Batchbox - Design

1 month ago 4 replies 1 3

rocket mass heaters

Rocket Mass Heater Design - Please Help!

1 month ago 9 replies 23

hydro

closed loop water turbine

1 month ago 8 replies 5 2

bicycle

Dan's DIY ebike blog

1 month ago 23 replies 12 16

solar

Solar oven from glass, mirrors and stone we had lying around!

1 month ago 10 replies 6 11

hydro

No Moving Parts Micro-Hydro: Open-Source Fluidic Oscillator Design Needs Builders!

1 month ago 0 replies 1

transportation

Alternatives to air travel

3 years ago 13 replies 2
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Forums
energy

rocket mass heaters 45226

rocket stoves 30245

alternative energy 18733

wood burning stoves 14239

conservation 6894

solar 11759

hydro 2325

wind 1175

biogas 986

biodiesel 557

transportation 3296

bicycle 1920

rocket ovens 2456