The Compost-Powered Water Heater: How to heat your greenhouse, pool, or buildings with only compost!

The Compost-Powered Water Heater: How to heat your greenhouse, pool, or buildings with only compost!

by Gaelan Brown


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Here is a revolutionary approach for heating rooms and generating hot water. Author Gaelan Brown has worked with engineers and compost scientists to refine methods of composting that can heat greenhouses, barns, buildings, and hot water, all without combustion.

It seems almost too good to be true: make high-value organic compost while generating reliable combustion-free heat. But it works, and this book is your practical introduction. With detailed case studies of large scale engineered systems and plans for constructing small DIY systems, you'll find step-by-step illustrations and photos to guide you through the process. A review of calculations to help you estimate the heating capabilities of various approaches and other planning tools make this book invaluable for compost heat recovery on any scale.

Product Details

ISBN-13: 9781581571943
Publisher: Countryman Press, The
Publication date: 05/05/2014
Pages: 162
Product dimensions: 5.60(w) x 8.30(h) x 0.50(d)

About the Author

Gaelan Brown is the founder of, an open source research network that has developed new methods of generating hot water from specially designed compost systems, and he’s taught classes on the topic at Vermont’s Yestermorrow Design Build School for several years.

Table of Contents

Introduction 5

1 A Brief History of Compost-Heat Recovery 7

2 A Compost-Powered Present and Future 22

3 The Science of Compost and Heat Recovery 29

4 Large-Scale Isobar Systems 45

5 Project Planning Guide for a Small-Scale Jean Pain System 67

6 Project Planning Guide for a Large-Scale Modified Jean Pain System 84

7 Greenhouse Application Design 94

8 Understanding Feedstocks for Heat Optimization and Compost Quality 116

9 Integrating with Other Systems 131

Afterword 144

Bibliography 148

Index 156

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