The original guide to living wisely.

Build a Simple Solar Heater
This low-cost plan lets you turn any south wall into a source of free heat. [Find out how!]

By Gary Reysa
Illustration by LEN CHURCHILL

Build a Simple Solar Heater

This low-cost plan lets you turn any south wall into a source of free heat. [Find out how!]

By Gary Reysa

Illustration by LEN CHURCHILL

  • 1 September 2013
  • 179