Seasonal Solar

ProgressivTube® Solar Water Systems not only out perform competitor systems in tropical and temperate climates worldwide, but also in Northern latitudes, such as Canadian & Northern U.S. climates.

For all regions, the product is designed to supply a significant percentage of the daily hot water heating load during the spring, summer and fall.

Preferred Regions of U.S. for Optimal ProgressivTube® Performance

The map shows all mainland U.S. regions (light green areas) where ProgressivTube®  exhibits  peak performance as a solar water heating solution.  With the exception of states in the north-most latitudes (dark green portion - areas  where a pipe freeze has occurred at least once within a 20-year time frame) -  over 80%  of  U.S. mainland geographies are excellent candidates to benefit from the ProgressivTube® hot water efficiency and industry-leading reliability.

Q & A

Question:  Can I use the ProgressivTube in Northern climates?
Answer:  Yes. Just like swimming pools located in Northern climates, our system is not freeze proof. The water heating system is turned on in the springtime and drained in the winter. In fact, many existing Northern climate customers schedule the installed system to start up and drain back at the same time as their swimming pools. Residential, as well as commercial customers, who understand this feature can enjoy substantial energy saving benefits during the summer season.

Question:  What would the payback of a ProgressivTube® system located in Wisconsin or North Carolina be?
Answer:  When compared to propane or electric water heaters, our Northern climate system has a simple payback of 3-7 years. Additionally, many states including Wisconsin and North Carolina offer residential and business financial incentives. To learn more about these incentives, visit www.dsireusa.org. If your home is located in coastal North Carolina, the ProgressivTube® will supply a significant percentage of hot water year-round.

Question:  In Northern latitudes during winter, how does the ProgressivTube® affect my home's hot was supply?
Answer:  During the cold, overcast winter months, your existing conventional water heating system furnishes your hot water needs.  In the event of an unexpected freeze condition, the built-in Eaton Dole Freeze Valve will provide limited protection.  During the winter, the ProgressivTube® is drained and isolated.