Thermal Mass & The Above-Ground Pond
Water serves as an excellent thermal mass in buildings, including greenhouses. Each Growing Dome® Greenhouse Kit features an Above-Ground Pond that maintains warmth in winter and remains cool in summer. The pond is sized for each Growing Dome, ensuring a year-round optimal environment. Positioned on the north wall under the Reflectix® insulation, the pond functions as a thermal battery bank. It is oval in 15’–26′ domes and round in 33’–42′ domes.
Many Uses for the Above-Ground Pond
Unique among greenhouse designs, the pond is not just a source of thermal mass. It fosters a beautiful environment for both aquatic plants and fish. The pond also works well as the main fish tank in Aquaponic systems. Plants growing in the raised beds benefit from the humidity provided by the pond. Fish waste is converted into nitrogen with the help of two types of naturally occurring bacteria. Go ahead and give your plants a drink of pond water the next time they are thirsty. The pond needs to be painted a dark color to absorb heat effectively, so it is a great place to get creative.
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