waterheaterspecs

Solar · tankless backup

Sammler solar systems

The Sammler solar systems line holds three certified rating sets of solar water heating systems, 3 model numbers sold as Sammler, listed by SAMMLER B. Michalopoulos AEBE (SAMMLER). Solar UEF values run from 4.4 to 17.2 and collector areas from 27.1 sq ft to 45.4 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 Sammler solar systems
Rating setSolar UEFCollector, sq ftCollector typeSolar tank, galBackupSystem
Sammler A1691 model number17.227.1Flat Plate42tanklessDirect Thermosyphon
Sammler US200-251 model number4.427.1Flat Plate53tanklessIndirect Forced Circulation
Sammler US200-421 model number6.145.4Flat Plate53tanklessIndirect Forced Circulation

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 RS80-48BPSolahart ASE 302JSunEarth C2-26T-40-TLGSunEarth C2-40T-50-TLGTychon FPS/HP 300Universal Solar Products C80-18Universal Solar Products D120-18Sammler A169Sammler US200-25Sammler US200-42
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 RS80-48BPSolahart ASE 302JSunEarth C2-26T-40-TLGSunEarth C2-40T-50-TLGTychon FPS/HP 300Universal Solar Products C80-18Universal Solar Products D120-18Sammler A169Sammler US200-25Sammler US200-42
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
Sammler A16927.1 sq ft19th largest39 °F30004305
Sammler US200-2527.1 sq ft19th largest39 °Fnot listed
Sammler US200-4245.4 sq ftseventh largest39 °F30004285

Model numbers

The line covers 3 model numbers, all certified 2020-01-22.

Model numberBrandRating setModel nameFreeze limitCertified
A169SammlerA169A Series39 °F2020-01-22
US200-25SammlerUS200-25Sammler39 °F2020-01-22
US200-42SammlerUS200-42Sammler39 °F2020-01-22

Nearest certified alternatives

Rating setCollector areaBackupSystem
Rheem RS80-40BP-TGcompared with Sammler A169−2.4 sq fttanklessIndirect Forced Circulation
GREENoneTEC L-GTcompared with Sammler A169−1.4 sq fttanklessDirect ICS
SunEarth C2-26T-40-TLGcompared with Sammler A169−0.2 sq fttanklessIndirect Forced Circulation
GREENoneTEC Double GTcompared with Sammler US200-42−0.8 sq fttanklessDirect ICS
SunEarth C2-40T-50-TLGcompared with Sammler US200-42−4.4 sq fttanklessIndirect Forced Circulation

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