Great discussion on how to include a water heating function into a rocket stove.
Rocket Mass Heater Workshop, with emphasis on heating water! (rocket stoves forum at permies)
How to make a rocket stove water heater | Permaculture Magazine + video
How To Make Endless Hot Water Without Electricity
WOOD VS. PROPANE – ENDLESS HOT WATER FOR CABINS OR TINY HOUSES
For Cooking And Hot Water, A Cool Creative Wood Stove Combination!
Rocket Stove Hot Water Heater for Outdoor Wood Fired Hot Tub (rocket stoves forum at permies)
Water Heater for our Truly Portable Wood Burning Stove
Rocket Stove water heater. More
Image detail for -Primitive? ..rocket stove in "Primitive" Cooking & Food Preparation ...