Specifications

Model

HT408

HT410

HT412

Normal Size (feet)4×84×104×12
Width (header length in inches)47.847.847.8
Width Installed (includes space between headers in array)484848
Space between absorbers when installed (inches)2.92.92.9
Length (inches)95.5119.5143.5
Header Inner Diameter (inches)222
Net Collector Area (square feet)30.2537.8545.45
Net Weight Empty (pounds)15.3018.6121.10
Water Capacity (gallons)2.723.143.68
Recommended Water Flow Rate (gallons per minute)3.24.04.8
Pressure Loss at Recommended Flow Rate (psi)0.050.090.14
Maximum Operating Pressure (psi)272727
Absorptivity0.970.970.97
Emissivity0.900.900.90
Heating Capacity, Certified by FSEC (BTU/sq. ft./day)100010001000
Heating Capacity, Certified by FSEC (BTU/collector/day)30,40038,00045,600