How to build a greenhouse / Green Building & Sustainable Home Renovation Information & Advice

...an insulating layer of air in between.  The insulated greenhouse is heated with a reclaimed forced-air furnace that is that activated automatically by a thermostat when the temperature drops below the established threshold. The heating system stops automatically when the control temperature is reached.  To compare Gree...

...ation.  6. Use thermal mass to extend your greenhouse growing season An extremely important part of solar greenhouse design is planning enough thermal mass, either via water, masonry or soil underground. This can be as simple as adding water barrels or you can upgrade by incorporating a Ground to Air Heat Transfer (GAH...