• Low cost containers designed to be the most economical per gallon of storage;
• Containers transmit natural daylight;
• Wide selection of diameters and heights available to compliment any design;
• Corrosion free fiberglass construction;
• Faster usable B.T.U. gain in 60% less space and 80% less weight than with rock or masonry;
• Self supporting containers require only flat, level floor;
• Easy to install or remove; largest tubes weigh less than 20 lbs. empty!

The Solar Storage Tubes can be used in residential, commercial, industrial, and agricultural applications. Designs based on the following concepts have been proven to provide up to100% of space heating and hot water needs depending upon climate and site conditions.

Direct Gain Clerestory

Installed adjacent to a solar window, the tubes absorb solar energy, store the energy, and transmit natural daylight. The tubes temper both the heat and light from the sun by removing the wide temperature fluctuations common to other direct gain systems, and by reducing glare from the solar window to workable levels.

The tubes may be filled with dyed water to increase absorption efficiency and to provide design versatility.

Direct Gain Vertical Wall

A direct gain design can be modified to separate the Solar Storage Tubes from the adjacent heated space to provide more control over heat gain. movable or fixed, opaque or light transmitting partitions are employed, depending upon design requirements. Heat built up in storage is extracted by natural convection
and/or a low power fan

Wall application: Solar Storage Tubes are positioned adjacent to a multi-layered solar window with high solar transmision and good insulation such as our Sun-Lite Glazing Panels. In very cold climates, movable insulation should be considered, analyzing the trade offs between additional costs and B.T.U.'s saved.

Direct Gain Sloped Wall

Controllable Passive Wall