This page provides solar radiation values for Mazdon Solar Collectors and expected gallons of water raised by 60 degrees F. Radiation figures are from the Solar Radiation Data Manual, WBAN NO. 13967. Mazdon collector (average) efficiency of 70% (based on Florida Solar Energy Center, Solar Collector Test Report No. 97005) is used for this chart.
Latitude: 35.40 N Degrees Longitude: 97.60 W Degrees Elevation: 397 Meters System Tilt: 30 Degrees Annual Total BTU's per square meter (10 tubes): 4,391,507
Oklahoma City, OK 
RADIATION
