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.