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 @ 6 GPM (psi) <0.5
Maximum Operating Pressure (psi) 35
Absorptivity 0.97
Emissivity 0.90
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 @ 6 GPM (psi) <0.5
Maximum Operating Pressure (psi) 35
Absorptivity 0.97
Emissivity 0.90
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 @ 6 GPM (psi) <0.5
Maximum Operating Pressure (psi) 35
Absorptivity 0.97
Emissivity 0.90
Heating Capacity, Certified by FSEC (BTU/sq.ft/day) 1000
Heating Capacity, Certified by FSEC (BTU/collector/day) 45,600