“Design is not just what it looks like and feels like. Design is how it works.” –Steve Jobs
The link below shows how three different collectors are performing on a site in Southern WA. The first graph is the outside air temperature and the other three graphs show the temperature sensors inside the solar collectors. Please note you can change from the daily charts to the week, month or year to get a more accurate review of the ranges of temperature increases.
A uniquely styled convex collector installed in Oregon
An example of an greenhouse style installation
Sunreps continues to press the efficiency and design boundry's of Solar Ventilation Pre-heating collectors. Below are some examples of a few different designs using basically the same materials that create totally different looks
Rooftop style on poultry houses at the University of Arkansas' poultry science testing facilities