Sustainability Enthusiast Doug Kalmer Sustainability Enthusiast @sundug • Joined May 2019 • Active 2 years ago Remove Connection Are you sure you want to remove from your connections? Profile Timeline My Events Photos Groups Connections 1 Forums Public Info URL Nickname sundug First Name Doug Kalmer Your Story Homesteader since 1982, designed and built our passive solar home, solar hot water, solar electricity, greenhouse, gardens, etc.
Sustainability Enthusiast
Sustainability Enthusiast
Sustainability Enthusiast
Sustainability Enthusiast
Sustainability Enthusiast
Sustainability Enthusiast