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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 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

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

shorty core replacing bbr with sidewinder

121 replies 1 27 11

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

37 replies 2 43 54

wood burning stoves

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

24 replies 1 4 30

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

wood burning stoves

Anybody used these Barrel Stove Kits?

19 replies 2 23

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

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

Transforming a Fireplace into a Splendid Rocket Mass Heater

17 replies 24 27

rocket mass heaters

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

22 replies 12 26

rocket mass heaters

Moving Old Friends again, & again, and again

16 replies 6 15

More »
Most recent

solar

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

5 hours ago 13 replies 1 1

rocket mass heaters

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

10 hours ago 4 replies 1 4

solar

Solar Farms greening the desert?

1 day ago 1 reply 1

solar

Solar Panel Installation: An Advanced Solution For Higher Utility Bills

1 day ago 5 replies 3

rocket mass heaters

Materials list help please PvdB

1 day ago 8 replies 2 4

rocket mass heaters

Rocket mass heater ideas wanted

2 days ago 4 replies 2 2

rocket mass heaters

Minimum space between insulated riser and barrel for a 6 inch rmh

2 days ago 5 replies 2 4

solar

Strange solar array problem

2 days ago 7 replies 1

solar

Solar Energy for pond pump

2 days ago 12 replies

solar

The limits of solar energy

3 days ago 44 replies [ 1, 2 ] 1 4 31

wood burning stoves

Another Type of Mass Heater?!?

3 days ago 11 replies 1 1

wood burning stoves

How big is too big for a RMH riser?

4 days ago 0 replies

rocket mass heaters

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

5 days ago 61 replies [ 1, 2 ] 23 60

conservation

Why Medieval Blanket Systems Worked At -40°F While Your 300$ Bedding Fails

5 days ago 15 replies 1 11

solar

Adding a separate MPPT to an inverter system

6 days ago 14 replies 4

conservation

Ways to cool a house without electricity

6 days ago 2 4 10

rocket mass heaters

Rocket water heater

6 days ago 5 replies 1 3 1

wood burning stoves

Anybody used these Barrel Stove Kits?

1 week ago 19 replies 2 23

rocket mass heaters

tiny house rocket mass heater: the cyclone batch style

1 week ago 73 replies [ 1, 2 ] 6 30 24

alternative energy

John Keely Fraud Devices 1800's

1 week ago 0 replies

hydro

closed loop water turbine

1 week ago 4 replies 2

alternative energy

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

1 week ago 6 replies 2 2

alternative energy

Nickel-Iron 'Edison' Batteries

1 week ago 78 replies [ 1, 2 ] 1 6

alternative energy

General paper on global energy transitions.....

1 week ago 1 reply 1

alternative energy

12V Portable LiFePO4 unheated battery recommendations?

1 week ago 15 replies 2

solar

Solar panel questions from a noob :)

1 week ago 7 replies 4

alternative energy

Home made power question

1 week ago 11 replies 2 2

wood burning stoves

How many times do you move your firewood?

1 week ago 14 replies 3 4

alternative energy

Thermosiphon pond pump

2 weeks ago 10 replies

rocket mass heaters

High heat rare earth magnets

2 weeks ago 2 replies 3 5

rocket mass heaters

Western MA, New England regional RMH workshop and build--*what's your utopia*?

2 weeks ago 9 replies

solar

Pump recomendations for pumping water from a pond with (20ft of head)

2 weeks ago 13 replies 2 6

alternative energy

Heat pumps, sewage and sewage lines

2 weeks ago 4 replies 3

rocket mass heaters

how do we tell more people about rocket mass heaters

2 weeks ago [ 1, 2, 3 < ... <8, 9, 10 ] 27 60 186

solar

Low battery-how to recharge

2 weeks ago 29 replies 9

solar

Figuring out power for small, off-grid home

2 weeks ago 16 replies 3

solar

Solar panels inadvertently harm envronment?!

2 weeks ago 33 replies 1 8

rocket mass heaters

shorty core replacing bbr with sidewinder

2 weeks ago 121 replies [ 1, 2, 3, 4 ] 1 27 11

rocket mass heaters

Cheap(ish) prefab mass heater with Shorty core

2 weeks ago 37 replies 2 43 54

solar

Keeping snow off solar panels

2 weeks ago 23 replies 3 7

rocket mass heaters

Shippable Walker 6" Superhot Cores now available

2 weeks ago 25 replies 1 4 14

conservation

31 ways to save on winter heating for $30 or less

3 weeks ago [ 1, 2 ] 1 34

wood burning stoves

RMH with cob stratification chamber bench - how to actually build the shape.

3 weeks ago 13 replies 7

wind

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

3 weeks ago 17 replies 5 5
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energy

rocket mass heaters 44806

rocket stoves 30240

alternative energy 18357

wood burning stoves 14110

conservation 6571

solar 11658

hydro 2316

wind 1171

biogas 984

biodiesel 548

transportation 3121

bicycle 1879

rocket ovens 2414