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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

RMH in a Tipi

294 replies 13 182 66

alternative energy

The Wheaton Eco Scale

299 replies 8 32 78

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

conservation

the solutions are embarrassingly simple

271 replies 14 11 57

rocket mass heaters

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

451 replies 7 213 71

rocket mass heaters

Rocket stoves in Greenhouses , our own forum topic

395 replies 21 102 22

conservation

It is 2025 and incandescent is still better than LED

216 replies 14 17 24

conservation

making the best of electric heat

462 replies 2 43 20

rocket mass heaters

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

153 replies 19 192

rocket mass heaters

compact 6" RMH hybrid with cook top and dutch oven

284 replies 14 85 4

conservation

Going poo-less: No Shampoo/Soap in the Shower

4 27 47

bicycle

Show Us What You Are Hauling On Your Bike

125 replies 5 96 98

rocket mass heaters

double chamber cob oven plans - download

2 17 6

rocket mass heaters

portable rocket mass heater

189 replies 8 20 3

rocket mass heaters

Ernie and Erica Wisner's Rocket Mass Heater Everything Combo

38 replies 29 3

rocket mass heaters

beautiful rocket mass heaters

54 replies 2 32 24

conservation

drying clothes - how not to smell like mildew - maybe it's the washing machine's fault?

76 replies 2 3 16

solar

Solar Dehydrator Plans - Combo Package download

56 replies 6 32 9

More »
Best this year

rocket mass heaters

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

153 replies 19 192

rocket mass heaters

New Build First Generation Batchbox 6" Double Brick Bell

43 replies 82 76

rocket ovens

Cob and brick oven with rocket technology

50 replies 37 71

rocket mass heaters

Leaning tower of Pizza

32 replies 31 29

rocket mass heaters

shorty core replacing bbr with sidewinder

116 replies 1 27 10

rocket mass heaters

Kees' cottage rocket

106 replies 2 64 15

rocket mass heaters

Lightweight Rocket Mass Heater Mediterranean Climate

59 replies 45 39

rocket mass heaters

Out with the old RMH

23 replies 50 21

rocket mass heaters

First flights of the Studio Dragon

13 replies 33 31

rocket mass heaters

Rebuilding and remodeling the Shop Dragon

17 replies 64 26

transportation

Good Permie Cars...

81 replies 8 2 15

rocket mass heaters

My first Batchbox build, on top of Barcelona's mountain.

29 replies 13 41

rocket mass heaters

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

27 replies 2 40 34

wood burning stoves

how to safely heat with green/wet wood in your wood stove when you are desperate

20 replies 1 4 22

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

New here, first post, I have been researching all different designs, and I came up with my own.

58 replies 11 9

wood burning stoves

Matt Walker Tiny Stove build in Spain

25 replies 6 21 33

rocket mass heaters

Cheap(ish) prefab mass heater with Shorty core

29 replies 1 41 30

rocket mass heaters

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

22 replies 12 26

More »
Most recent

rocket mass heaters

My first Batchbox build, on top of Barcelona's mountain.

10 hours ago 30 replies 16 42

wood burning stoves

Increase wood stove efficiency during blackout

18 hours ago 85 replies [ 1, 2, 3 ] 149 44

alternative energy

12,000 Liters of Freshwater per Day from Air — Offshore Buoy System | 24/7 Operation | No External E

1 day ago 5 replies 2 1

rocket mass heaters

Anyone converted a fireplace to all-in-one rocket mass heater with oven and cooktop?

1 day ago 7 replies 1 5

rocket mass heaters

My Greenhouse Project

1 day ago 7 replies 2 1 1

rocket stoves

Ax: quick and easy way to cut small diameter wood for RMHs

1 day ago 3 replies 1 1

wind

?? Opinions / options for small 400-600 Watt windmill for pond aeration system??

1 day ago 15 replies 5 5

rocket mass heaters

Cheap(ish) prefab mass heater with Shorty core

1 day ago 29 replies 1 41 30

wood burning stoves

"Finnish Fireplaces" book by Heikki Hyytainen and Albie Barden - available for download from Albie

1 day ago 7 replies 1 3

rocket mass heaters

Counsel for new Shorty Core + statification bell Rocket Mass Heater

1 day ago 28 replies 8 21

rocket mass heaters

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

2 days ago 22 replies 12 26

wood burning stoves

Woodshop waste as heat

2 days ago 7 replies 1

alternative energy

12V Portable LiFePO4 unheated battery recommendations?

3 days ago 7 replies

rocket mass heaters

Vortex stove progress

3 days ago 4 replies 2 10

alternative energy

Building 100 AH LiFePo4 Battery Box

3 days ago 26 replies 21 8

wood burning stoves

Wood heat issues. Need advice

3 days ago 24 replies 6 13

rocket mass heaters

Ceramic tile on outside of bell? American kachelofen?

4 days ago 16 replies 4 13

alternative energy

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

4 days ago 16 replies 5

alternative energy

Sand battery - thermal mass proto type.

5 days ago 110 replies [ 1, 2, 3 ] 17 69 11

alternative energy

Car Ran On Water To Hydrogen Spark Plug 2006

5 days ago 1 reply

rocket mass heaters

Cast Refractor Failure?

5 days ago 22 replies 10 20

rocket mass heaters

Matt Walker tiny cookstove build in Portugal

6 days ago 217 replies [ 1, 2, 3, 4, 5, 6 ] 32 187 233

rocket mass heaters

Bells: masonry to the bottom, metal chimney attaches to the top?

1 week ago 12 replies 1 6 9

conservation

Seasonal Insulation for Windows?

1 week ago 28 replies 3 7 18

alternative energy

Infographic to consider the best heat - all costs

1 week ago [ 1, 2 ] 1 20 23

rocket mass heaters

Rocket Mass Heater Resources Wiki

1 week ago [ 1, 2 ] 9 24 37

rocket mass heaters

solving the biggest carbon problem in a cold climate - webinar with Alan Booker

1 week ago 8 replies 1 7 2 4

rocket mass heaters

Is a Sunken Floor Pebble Rocket Mass Heater Viable?

1 week ago 18 replies 1 1 1

rocket mass heaters

Shorty Core + Oven Build and Test

1 week ago 9 replies 18 10

rocket mass heaters

Development of a compact batchrocket core.

1 week ago 81 replies [ 1, 2, 3, 4, 5, 6 ] 1 98 92

rocket mass heaters

Walker Stoves Superhot J 8 Inch build experience

1 week ago 52 replies [ 1, 2 ] 1 23 11

rocket mass heaters

RMH add-on / alt-design for the air-intake/feed-tube

1 week ago 2 replies

rocket mass heaters

Solar sand/thermal mass battery in combination with RMH

1 week ago 30 replies 2 6

rocket mass heaters

Designing My First RMH 7" Batch Box

1 week ago 9 replies 5 4

solar

Study: Reusing Nissan Leaf Batteries for Stationary Storage

1 week ago 1 reply 1

transportation

Are the electric cars having issues because of the extreme cold?

1 week ago 2 replies 1

wood burning stoves

Newcomer looking for advice on a 1500 sqft ranch installation/options.

1 week ago 6 replies 1

rocket mass heaters

Explanations please for unique sidewinder rmh

1 week ago 7 replies 1 1

rocket mass heaters

Proper dimensions for the “J” tube?

2 weeks ago 27 replies 5 2

rocket mass heaters

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

2 weeks ago 153 replies [ 1, 2, 3, 4 ] 19 192

rocket mass heaters

6" J-tube RMH with half barrel stratification bench

2 weeks ago 16 replies 2 7

wood burning stoves

The Korean stove

2 weeks ago 5 replies 1 3

solar

Tesla unveils solar-batteries for homes

10 years ago 29 replies 1 1
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energy

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bicycle 1879

rocket ovens 2414