Choose your iSwim model from the list to view its individual specifications. Or, download a complete spec sheet here.

iS-408

Nominal Size (feet)4×8
Width (header in inches)47.8
Width Installed (includes space between headers in array)48
Space between absorbers when installed (inches)2.9
Length (inches)95.5
Header Inside Diameter (inches)2
Net Collector Area (square feet)30.25
Net Weight Empty (pounds)15.30
Water Capacity (gallons)2.72
 Recommended Water Flow Rate (gallons per minute)3.2
Pressure Loss @ Recommended Flow Rate (psi)0.05
Maximum Operating Pressure (psi)27
Absorptivity0.97
Emissivity0.90
Heating Capacity, Certified by FSEC (BTU/sq.ft/day)1000
Heating Capacity, Certified by FSEC (BTU/collector/day)30,400

iS-410

Nominal Size (feet)4×10
Width (header in inches)47.8
Width Installed (includes space between headers in array)48
Space between absorbers when installed (inches)2.9
Length (inches)119.5
Header Inside Diameter (inches)2
Net Collector Area (square feet)37.85
Net Weight Empty (pounds)18.61
Water Capacity (gallons)3.14
 Recommended Water Flow Rate (gallons per minute)4.0
Pressure Loss @ Recommended Flow Rate (psi)0.09
Maximum Operating Pressure (psi)27
Absorptivity0.97
Emissivity0.90
Heating Capacity, Certified by FSEC (BTU/sq.ft/day)1000
Heating Capacity, Certified by FSEC (BTU/collector/day)38,000

iS-412

Nominal Size (feet)4×12
Width (header in inches)47.8
Width Installed (includes space between headers in array)48
Space between absorbers when installed (inches)2.9
Length (inches)143.5
Header Inside Diameter (inches)2
Net Collector Area (square feet)45.45
Net Weight Empty (pounds)21.10
Water Capacity (gallons)3.68
 Recommended Water Flow Rate (gallons per minute)4.8
Pressure Loss @ Recommended Flow Rate (psi)0.14
Maximum Operating Pressure (psi)27
Absorptivity0.97
Emissivity0.90
Heating Capacity, Certified by FSEC (BTU/sq.ft/day)1000
Heating Capacity, Certified by FSEC (BTU/collector/day)45,600