System type: Closed-loop glycol solar hot water
Location: Central Pennsylvania
Solar resource: 4.4 average daily peak sun-hours
Ave. Monthly Production: 820,161 Btu
Hot water produced annually: 83%
Collectors: Oventrop OV-5 16-tube collector; Oventrop OVF-32 flat-plate collector
Collector installation: Roof-mounted on south-facing roof at 45° (flat-plate collector) and parallel to roof plane (evacuated-tube collector)
Heat-transfer fluid: Glycol-water mixture
Circulation pump: Regusol 169-80-65
Pump controller: Regusol 130 pumping station
Tanks: Bradford White, 120 gal.
Heat exchanger: Bradford White
Backup DHW: Bradford White, 80 gal.
System Performance Metering
Thermometer: Regusol 169-80-65