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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

300 replies 8 32 77

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

alternative energy

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?

160 replies 19 196

rocket mass heaters

compact 6" RMH hybrid with cook top and dutch oven

284 replies 14 85 4

conservation

Building a Better World in your Backyard by Paul Wheaton and Shawn Klassen-Koop

11 78 216

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

transportation

How to save fuel when driving?

59 replies 2 1 97

rocket mass heaters

Ernie and Erica Wisner's Rocket Mass Heater Everything Combo

38 replies 29 3

rocket mass heaters

portable rocket mass heater

189 replies 8 20 3

rocket mass heaters

beautiful rocket mass heaters

54 replies 2 32 24

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Best this year

rocket mass heaters

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

160 replies 19 196

transportation

How to save fuel when driving?

59 replies 2 1 97

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

rocket mass heater jamboree October 5-9 2026

71 replies 3 2 71

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

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

61 replies 23 60

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

Cheap(ish) prefab mass heater with Shorty core

38 replies 2 46 57

wood burning stoves

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

24 replies 1 4 30

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

Rebuilding and remodeling the Shop Dragon

17 replies 64 26

transportation

Good Permie Cars...

81 replies 8 2 15

rocket mass heaters

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

27 replies 2 40 34

solar

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

14 replies 2 1

alternative energy

Staying warm in winter (inside)

28 replies 1 1 10

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Most recent

rocket mass heaters

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

42 minutes ago 161 replies [ 1, 2, 3, 4, 5 ] 19 196

wood burning stoves

Splitting firewood, is bigger better?

47 minutes ago 2 replies 1

alternative energy

So you want to build a DIY battery box? A guide for the entire process

10 hours ago 2 replies 4

solar

How to make solar panels more robust

18 hours ago 6 replies 1 3

wood burning stoves

Mini wood-burning cookstove for a tiny house

19 hours ago 17 replies 2 11 30 1

rocket mass heaters

Riser in Barrel Underwater for Hot Tub?

1 day ago 4 replies

rocket mass heaters

Uncle Mud Asks: Will there be a 2026 Rocket Heater Jamboree?

1 day ago 1 reply 1 2

alternative energy

12V Portable LiFePO4 unheated battery recommendations?

1 day ago 24 replies 2

alternative energy

Building 100 AH LiFePo4 Battery Box

1 day ago 41 replies [ 1, 2 ] 23 11

rocket mass heaters

Shorty Core + Oven Single Skin Bell Build

1 day ago 16 replies 27 24 4

wind

Vertical axis turbine....ill advised or still viable?

2 days ago 1 reply 3

rocket mass heaters

Cheap(ish) prefab mass heater with Shorty core

3 days ago 38 replies 2 46 57

rocket mass heaters

Shippable Walker 6" Superhot Cores now available

3 days ago 27 replies 1 4 16

rocket mass heaters

Development of a compact batchrocket core.

3 days ago 83 replies [ 1, 2, 3, 4, 5, 6 ] 1 98 92

wood burning stoves

Outdoor Cookstove with TEN BRICKS

3 days ago 9 replies 8 4

conservation

Small Steps for the Environment

3 days ago 3 replies 1 8

rocket mass heaters

RMH, mass under the kitchen table

3 days ago 49 replies [ 1, 2 ] 1 17 47

wood burning stoves

Nine CapBlock Stove -2nd try to show photos

4 days ago 1 reply 3 1

alternative energy

Batteries home building --maybe

4 days ago 9 replies 1

wood burning stoves

Outdoor Cookstove with Nine Concrete Cap Blocks

4 days ago 0 replies 3

rocket stoves

Looking for a simple rocket stove design for outdoor cooking

5 days ago 10 replies 2 2 5

rocket stoves

Fuel other than wood for rocket stoves.

5 days ago 7 replies 1

wood burning stoves

Affordable way to add mass to existing woodstove?

6 days ago 48 replies [ 1, 2 ] 20 18

alternative energy

Car Ran On Water To Hydrogen Spark Plug 2006

6 days ago 3 replies

bicycle

Permies Poll: Do you use a bicycle?

1 week ago [ 1, 2 ] 17 23

rocket mass heaters

Materials list help please PvdB

1 week ago 10 replies 2 4

rocket stoves

rocket stoves and hot air balloons

1 week ago 5 replies 3

bicycle

I just bought a crappy looking bike. Not a department store bike.

1 week ago 10 replies 8

alternative energy

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

1 week ago 7 replies 2 1 2

alternative energy

Unlimited Fuel In Perpetuity for Free in Theory - ethanol from spirulina

1 week ago 33 replies

rocket mass heaters

Heavy Snow, The Smoke Shack takes a direct hit

1 week ago 19 replies 26 36

rocket mass heaters

Results of the 8" batch box thingy at the Innovators Gathering

1 week ago 124 replies [ 1, 2, 3, 4 ] 10 36 8

wood burning stoves

Anybody used these Barrel Stove Kits?

1 week ago 20 replies 1 2 25

transportation

Can I charge a scooter battery with a car battery charger?

1 week ago 17 replies 2

rocket mass heaters

Casting Large refractory Slabs

1 week ago 49 replies [ 1, 2 ] 29 28

rocket mass heaters

Uncle Mud Tiny House Rocket Mass Heater 1 Year Update--The Long Firegeek Version

1 week ago 12 replies 1 3 9

rocket ovens

Andalusian Pizza Rocket

2 weeks ago 14 replies 5 25

rocket mass heaters

On the ground stone floor heating

2 weeks ago 2 replies 1

solar

A cool website I found

2 weeks ago 0 replies

wood burning stoves

underfloor heating system with a rocket mass heater

2 weeks ago 19 replies 1 1 1

solar

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

2 weeks ago 14 replies 2 1

solar

Solar Farms greening the desert?

2 weeks ago 1 reply 1

solar

Solar Panel Installation: An Advanced Solution For Higher Utility Bills

2 weeks ago 5 replies 3

rocket mass heaters

Rocket mass heater ideas wanted

3 weeks ago 4 replies 2 2
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rocket ovens 2449