Using Thermal Mass in Cold Frames and Hot Beds
Thermal mass absorbs and stores heat during the daytime hours before gradually releasing it at nighttime when temperatures have settled down, thus helping to moderate temperature swings and minimize energy usage for cooling purposes. Adobe construction is often the go-to solution in climates with extreme diurnal variations, but you can add thermal mass into your tunnel using recycled materials such as old glass bottles filled with water as walls or dividers. Water Jugs Cold frames extend your growing season from early spring and fall by providing seedlings, tender plants, and vegetables with protection from frost, cold, and snow. Furthermore, they
