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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?

182 replies 29 223

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

143 replies 97 112

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

194 replies 3 161 34

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?

182 replies 29 223

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 194 replies [ 1, 2, 3, 4, 5 ] 3 161 34

wood burning stoves

Matt Walker continental stove build

3 hours ago 143 replies [ 1, 2, 3 < ... <6, 7, 8 ] 97 112

rocket mass heaters

RMH in basement

2 days ago 2 replies 1

solar

Running solar wires long distance

2 days ago 8 replies 4

solar

Recommendations for sealing shattered solar panels

2 days ago 13 replies 1 3

rocket mass heaters

Batchrocket icw barrel and bench (as a bell)

2 days ago 27 replies 16 26

conservation

Cool the person not the space: methods of doing it

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

wood burning stoves

Firewood Tracker

3 days ago 0 replies 1

alternative energy

Hydrogen Augmentation of Vehicle Fuel

3 days ago 26 replies 2 5

solar

Solar hot water collector and storage

5 days ago 6 replies 7 1

transportation

What is the most fuel efficient car?

5 days ago 27 replies 1 4

transportation

farm utility vehicle, 3rd iteration

5 days ago 20 replies 2 5 5

transportation

best mileage in town driving

6 days ago 2 replies 3

rocket mass heaters

Schlieren imaging for rocket mass heaters

6 days ago 0 replies 1 2

rocket mass heaters

Rocket Mass Off Season Smell

1 week ago 8 replies 1 4

transportation

Car buying

1 week ago 13 replies 11

rocket mass heaters

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

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

transportation

Natural Car Storage

1 week ago 2 replies 1

rocket mass heaters

8" J-tube with half barrel bench

1 week ago 8 replies 2 11

wood burning stoves

Walker continental stove and flooring

1 week ago 2 replies

solar

What could have been: solar power in colonial India

1 week ago 3 replies 3

rocket mass heaters

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

1 week ago 182 replies [ 1, 2, 3, 4, 5 ] 29 223

bicycle

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

1 week ago 11 replies 1 12

wood burning stoves

Masonry Heater

1 week ago 19 replies 11 27

alternative energy

A/C just went out, 3rd consecutive summer

3 weeks ago 18 replies 6 6

rocket mass heaters

Guidance on RMH build in a light wood construction

3 weeks ago 29 replies 15 31

alternative energy

Cooling with a closed system

3 weeks ago 7 replies 2

conservation

It is 2026 and incandescent is still better than LED

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

wood burning stoves

Third day of wet cool temps

3 weeks ago 3 replies 1 6

rocket mass heaters

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

3 weeks ago 12 replies 5 5

rocket mass heaters

6" J-tube RMH with half barrel stratification bench

3 weeks ago 17 replies 2 7

wood burning stoves

Mini wood-burning cookstove for a tiny house

3 weeks ago 30 replies 3 23 39

solar

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

3 weeks ago 7 replies 3

rocket ovens

10 gallon sized portable rocket oven

4 weeks ago 9 replies 4 4

rocket mass heaters

Excessively Planned 6" Batchbox - Design

4 weeks ago 4 replies 1 3

rocket mass heaters

Rocket Mass Heater Design - Please Help!

4 weeks ago 9 replies 23

hydro

closed loop water turbine

4 weeks 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

Engine too hot message on a cold engine

1 month ago 12 replies 4

rocket mass heaters

Solar sand/thermal mass battery in combination with RMH

1 month ago 35 replies 2 8

bicycle

Got a bike question?

1 month ago 28 replies 4 1

transportation

What's inside?

1 month ago 21 replies 26 16

transportation

Alternative Modes of Travel (Some Abnormal, too)

1 month ago 22 replies 4 6 9
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Forums
energy

rocket mass heaters 45220

rocket stoves 30243

alternative energy 18698

wood burning stoves 14231

conservation 6894

solar 11739

hydro 2325

wind 1175

biogas 986

biodiesel 557

transportation 3291

bicycle 1920

rocket ovens 2453