What is thermal mass?

orchiddude(+7b ALabama)January 1, 2013

Thermal mass is anything in the greenhouse that absorbs solar energy and heat from the sun during the day and releases that heat at night. Using thermal mass can moderate greenhouse temperatures and may reduce energy costs.

Many things can act as thermal mass in the greenhouse, including wood, soil in raised beds, concrete, block, or brick foundations, or even the floor of the greenhouse. But the most effective and least expensive thermal mass is water. Water can store far more heat for a given mass than any other commonly available material. Water is also useful because of its latent heat; it release up a tremendous amount of heat energy as it freezes, and often this is just when greenhouse heat is needed most.

A common practice is to store water in containers along the back wall of a greenhouse or in 55 gallon drums used to support benches. A commonly recommended minimum volume of stored water for solar greenhouses is 2-3 gallons per square foot of glazing.

Information provided by: Stressbaby

More Discussions
Calculate the cost of heating and cooling a greehouse.
The question is best answered by using an example,...
Where can I get plans for building my own greenhouse?
Greenhouse plans are widely available online. These...
What are the different kinds of glazing materials, and what are their
The ideal glazing will transmit light well, yet not...
Sponsored Products
Martha Stewart Living Craft Storages & Organizers Craft Space 31 in. H x 21 in.
Home Depot
Loloi Rugs Summerton 3'0 Round Dark Brown & Floral Area Rug
$79.00 | LuxeDecor
Elk Lighting 522-6C 6 Light Pendant in Satin Nickel & Coco Glass
Beyond Stores
Home Decorators Accent Rug: Sabrina Rust and Beige 2' x 3'
$24.99 | Home Depot
Contemporary Indoor/Outdoor Area Rug: Kaleen Rugs Posh Pink 3 ft. x 5 ft.
Home Depot
Chooty & Co Debutante Bisque 17 x 17 in. 3 Buttoned Stitched Pillow - CS17U920
$60.99 | Hayneedle
Justice Design Group ALR-8674 - Montana 4 Light Bath Bar - Square with Flat Rim
$398.00 | Hayneedle
Euro Style Daniel 59 x 27.6 Rectangular Walnut Computer Desk
$666.00 | LuxeDecor
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™