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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?

181 replies 29 222

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 27

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

wood burning stoves

Matt Walker continental stove build

137 replies 97 112

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

193 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?

181 replies 29 222

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

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

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

40 replies 1 22 39

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

rocket mass heaters

Shorty Core + Oven Single Skin Bell Build

16 replies 27 24

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Most recent

wood burning stoves

Masonry Heater

3 hours ago 16 replies 11 27

rocket mass heaters

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

10 hours ago 40 replies [ 1, 2 ] 1 22 39

alternative energy

A/C just went out, 3rd consecutive summer

1 day ago 18 replies 6 6

rocket mass heaters

8" J-tube with half barrel bench

1 day ago 5 replies 1 9

solar

What could have been: solar power in colonial India

2 days ago 1 reply 3

alternative energy

Building 100 AH LiFePo4 Battery Box

2 days ago 193 replies [ 1, 2, 3, 4, 5 ] 3 161 34

rocket mass heaters

Guidance on RMH build in a light wood construction

2 days ago 29 replies 15 31

alternative energy

Cooling with a closed system

2 days ago 7 replies 2

conservation

It is 2026 and incandescent is still better than LED

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

wood burning stoves

Third day of wet cool temps

4 days ago 3 replies 1 6

rocket mass heaters

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

4 days ago 12 replies 5 5

rocket mass heaters

6" J-tube RMH with half barrel stratification bench

4 days ago 17 replies 2 7

wood burning stoves

Mini wood-burning cookstove for a tiny house

4 days ago 30 replies 3 23 39

solar

Solar hot water collector and storage

5 days ago 3 replies 6 1

solar

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

5 days ago 7 replies 3

rocket mass heaters

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

5 days ago 181 replies [ 1, 2, 3, 4, 5 ] 29 222

rocket mass heaters

Batchrocket icw barrel and bench (as a bell)

6 days ago 25 replies 14 21

rocket ovens

10 gallon sized portable rocket oven

6 days ago 9 replies 4 4

rocket mass heaters

Excessively Planned 6" Batchbox - Design

1 week ago 4 replies 1 3

rocket mass heaters

Rocket Mass Heater Design - Please Help!

1 week ago 9 replies 23

hydro

closed loop water turbine

1 week ago 8 replies 5 2

bicycle

Dan's DIY ebike blog

1 week ago 23 replies 12 16

solar

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

1 week ago 10 replies 6 11

hydro

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

1 week ago 0 replies 1

transportation

Engine too hot message on a cold engine

1 week ago 12 replies 4

rocket mass heaters

Solar sand/thermal mass battery in combination with RMH

1 week ago 35 replies 2 8

bicycle

Got a bike question?

1 week ago 28 replies 4 1

transportation

What's inside?

2 weeks ago 21 replies 26 16

transportation

Alternative Modes of Travel (Some Abnormal, too)

2 weeks ago 22 replies 4 6 9

rocket mass heaters

Advice batch rocket heater

2 weeks ago 19 replies 1 12

wood burning stoves

Wood Stove, any point in adding fire brick?

2 weeks ago 26 replies 1 2

alternative energy

Rethinking Lithium Batteries

2 weeks ago 51 replies [ 1, 2 ] 1 1 16

transportation

New part failure!

2 weeks ago 2 replies 1 4

rocket mass heaters

rocket mass heater: water as a thermal mass

2 weeks ago 51 replies [ 1, 2 ] 4 1

transportation

Bad Boy Buggy has been Very Naughty...Please HELP our Wheaton Lab Boots!

2 weeks ago 4 replies 2 2

rocket mass heaters

RMH completed - some fotos and big thanks!

3 weeks ago 9 replies 4 17

wood burning stoves

Older Blaze King Stove question

3 weeks ago 12 replies 2

solar

California is getting closer to plug and play solar

3 weeks ago 1 reply 3

rocket mass heaters

beautiful rocket mass heaters

3 weeks ago 55 replies [ 1, 2, 3, 4 ] 2 33 27

rocket mass heaters

Questions about building my first J-tube RMH for a tiny house

3 weeks ago 44 replies [ 1, 2 ] 19 60

solar

What size Breaker in your AC Panel fed from Solar Inverter

3 weeks ago 20 replies 3 3

solar

Solar Energy for pond pump

4 weeks ago 13 replies

rocket mass heaters

A Hidden Cost of RMHs!

1 month ago 36 replies 2 9 34

alternative energy

Replaced old lead acid batteries with LifePO4 for home power system off grid

1 month ago 35 replies 3 7
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Forums
energy

rocket mass heaters 45217

rocket stoves 30249

alternative energy 18692

wood burning stoves 14224

conservation 6884

solar 11719

hydro 2325

wind 1175

biogas 986

biodiesel 557

transportation 3244

bicycle 1918

rocket ovens 2453