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Home / Products / Div 23 52 00 — 23 52 00 / THERMAL SOLUTIONS APX425C
THERMAL SOLUTIONSDiv 23 · HVACNo manufacturer photo on file
Div 23 52 00 · 23 52 00

THERMAL SOLUTIONS APX425C

THERMAL SOLUTIONS · APX425C

THERMAL SOLUTIONS APX425C appears in the U.S. EPA ENERGY STAR "Certified Commercial Boilers" dataset, which lists products whose manufacturers have certified them to the program's specification (record 2374391, certified 2021-11-08). EPA publishes these rated values for the listing: Full load input rate Btu hr 399; Reported thermal efficiency TE 94.10; Turndown ratio 5.00; Control type Multi-stage; Application Indoor. The listing records ENERGY STAR certification and the rated values the manufacturer reported to EPA. It is not a determination that any building, installation or design complies with a code.

✓ Verified 2026-10-03
Specs on this page were checked against ENERGY STAR Certified Commercial Boilers (data.energystar.gov/d/3393-mxju) on 2026-10-03.

Specifications

ApplicationIndoor
Control typeMulti-stage
Turndown ratio5.00
Full load input rate Btu hr399
Reported thermal efficiency TE94.10

Certifications & Standards

ENERGY STAR 2374391 Certified commercial boiler, 2021-11-08

Sustainability

No sustainability metrics on file for this product.