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Universal Solar Products solar systems

The Universal Solar Products solar systems line holds two certified rating sets of solar water heating systems, 2 model numbers sold as Universal Solar Products, listed by Universal Solar Products. Solar UEF values run from 3.5 to 4.6 and collector areas from 53.9 sq ft to 71.9 sq ft.

Certified as of October 27, 2026 · EPA ENERGY STAR data, public domain · Compare in the Heater finder

Size by size

Certified values of Universal Solar Products solar systems
Rating setSolar UEFCollector, sq ftCollector typeSolar tank, galBackupSystem
Universal Solar Products C80-181 model number4.653.9Flat Plate80tankDirect Thermosyphon
Universal Solar Products D120-181 model number3.571.9Flat Plate120tankDirect Thermosyphon

Solar UEF against collector area, these systems among all solar listings

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Solar UEF

Solar UEF against collector area, these systems among all solar listings051015202520304050607080Collector area, sq ftAET B-DBS-G2-80-64AET DX-120-64AET DX-80-40AET FF-80-42Dimas 300-3 ELGREENoneTEC Double EGREENoneTEC Double GTGREENoneTEC HEGREENoneTEC L-ExtraGREENoneTEC L-GTHeliodyne HF 1 406 G 40 AC S EHeliodyne HF 1 408 G 60 AC S EHeliodyne HF 1 410 G 80 AC S EMC Green B80-20Rheem RS120-64BP-TGRheem RS80-40BPRheem RS80-40BP-TGRheem RS80-48BPSammler A169Sammler US200-25Sammler US200-42Solahart ASE 302JSunEarth C2-26T-40-TLGSunEarth C2-40T-50-TLGTychon FPS/HP 300Universal Solar Products C80-18Universal Solar Products D120-18
Solar UEF against collector area, these systems among all solar listings051015202520406080Collector area, sq ftAET B-DBS-G2-80-64AET DX-120-64AET DX-80-40AET FF-80-42Dimas 300-3 ELGREENoneTEC Double EGREENoneTEC Double GTGREENoneTEC HEGREENoneTEC L-ExtraGREENoneTEC L-GTHeliodyne HF 1 406 G 40 AC S EHeliodyne HF 1 408 G 60 AC S EHeliodyne HF 1 410 G 80 AC S EMC Green B80-20Rheem RS120-64BP-TGRheem RS80-40BPRheem RS80-40BP-TGRheem RS80-48BPSammler A169Sammler US200-25Sammler US200-42Solahart ASE 302JSunEarth C2-26T-40-TLGSunEarth C2-40T-50-TLGTychon FPS/HP 300Universal Solar Products C80-18Universal Solar Products D120-18
Each circle is one system. Solar UEF values are shown as listed in the dataset.

Collector size among the solar listings

The median collector area of the 27 solar systems on the list is 40.6 sq ft. Solar UEF values are shown as listed and not ranked (see Test and data).

SystemCollector areaAmong the 27 solar systemsFreeze limitSRCC OG-300 number
Universal Solar Products C80-1853.9 sq ftsixth largest39 °F30004377
Universal Solar Products D120-1871.9 sq ftsecond largest39 °F30004373

Model numbers

The line covers 2 model numbers, all certified 2023-03-01.

Model numberBrandRating setModel nameFreeze limitCertified
C80-18Universal Solar ProductsC80-18USP39 °F2023-03-01
D120-18Universal Solar ProductsD120-18USP39 °F2023-03-01

Nearest certified alternatives

Rating setCollector areaBackupSystem
GREENoneTEC Double Ecompared with Universal Solar Products C80-18−9.3 sq fttankDirect ICS
Tychon FPS/HP 300compared with Universal Solar Products C80-18−10.8 sq fttankDirect Thermosyphon
AET FF-80-42compared with Universal Solar Products C80-18−10.9 sq fttankDirect Thermosyphon
AET DX-80-40compared with Universal Solar Products C80-18−13.3 sq fttankIndirect Forced Circulation
AET DX-120-64compared with Universal Solar Products D120-18−6.6 sq fttankIndirect Forced Circulation

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