Data / ENERGY STAR / Commercial boilers
ENERGY STAR certified commercial boilers: 384 models from 31 brands
The EPA lists 384 ENERGY STAR certified products in commercial boilers from 31 brands, as read on November 4, 2026. The newest certification is Hamilton Engineering HTH 00300 A, dated a date the EPA did not record, and Lochinvar has the most certified models with 65. Thermal Efficiency (%) runs from 94 to 98.7 with a median of 96.5.
SpecStream is the live web data engine for teams and agents. It reads the EPA's ENERGY STAR certified product lists, keyed on the ENERGY STAR Unique ID, and this page is that reading. Ask for the products you track by category, brand or rating, and each new certification arrives in your sheet, CRM, Slack or agent as the EPA publishes it.
- Certified products
- 384
- Brands
- 31
- Newest certification
- a date the EPA did not record
Newest certified commercial boilers
The 100 most recent certifications of 384. Each row links to the product's record in the EPA's open data portal.
| Brand | Model | Thermal Efficiency (%) | Full Load Input Rate (kBtu/hr) | ENERGY STAR ID | Certified | Source |
|---|
| Hamilton Engineering | HTH 00300 A | 97 | 300 | 4682314 | | data.energystar.gov |
| Hamilton Engineering | HTH 00350 A | 96.7 | 349 | 4682313 | | data.energystar.gov |
| Hamilton Engineering | HTH 00400 A | 96.5 | 399 | 4682312 | | data.energystar.gov |
| Hamilton Engineering | HTH 00500 A | 96.4 | 500 | 4682311 | | data.energystar.gov |
| Hamilton Engineering | HTH 00650 A | 96.3 | 650 | 4682310 | | data.energystar.gov |
| Hamilton Engineering | HTH 00800 A | 96.1 | 800 | 4682309 | | data.energystar.gov |
| Hamilton Engineering | HTH 01000 A | 96 | 999 | 4682308 | | data.energystar.gov |
| Hamilton Engineering | HTH 01251 A | 98.4 | 1,250 | 4682307 | | data.energystar.gov |
| Hamilton Engineering | HTH 01501 A | 98 | 1,500 | 4682306 | | data.energystar.gov |
| Hamilton Engineering | HTH 01751 A | 98.7 | 1,750 | 4682305 | | data.energystar.gov |
| Hamilton Engineering | HTH 02001 A | 98.4 | 1,999 | 4682304 | | data.energystar.gov |
| Hamilton Engineering | HTH 00300 AX | 97 | 300 | 4682303 | | data.energystar.gov |
| Hamilton Engineering | HTH 00350 AX | 96.7 | 349 | 4682302 | | data.energystar.gov |
| Hamilton Engineering | HTH 00400 AX | 96.5 | 399 | 4682301 | | data.energystar.gov |
| Hamilton Engineering | HTH 00500 AX | 96.4 | 500 | 4682300 | | data.energystar.gov |
| Hamilton Engineering | HTH 00650 AX | 96.3 | 650 | 4682299 | | data.energystar.gov |
| Hamilton Engineering | HTH 00800 AX | 96.1 | 800 | 4682298 | | data.energystar.gov |
| Hamilton Engineering | HTH 01000 AX | 96 | 999 | 4682297 | | data.energystar.gov |
| Hamilton Engineering | HTH 01251 AX | 98.1 | 1,250 | 4682296 | | data.energystar.gov |
| Hamilton Engineering | HTH 01501 AX | 98 | 1,500 | 4682295 | | data.energystar.gov |
| Hamilton Engineering | HTH 01751 AX | 98.7 | 1,750 | 4682294 | | data.energystar.gov |
| Hamilton Engineering | HTH 02001 AX | 98.3 | 1,999 | 4682293 | | data.energystar.gov |
| Weil-McLain | SF1000 | 95.8 | 1,000 | 4682292 | | data.energystar.gov |
| Weil-McLain | SF1500 | 95.8 | 1,500 | 4682291 | | data.energystar.gov |
| Weil-McLain | SF2000 | 95.3 | 2,000 | 4682290 | | data.energystar.gov |
| U.S. Boiler Company | CTD1250 | 97 | 1,250 | 4682289 | | data.energystar.gov |
| U.S. Boiler Company | CTD1500 | 97 | 1,500 | 4682288 | | data.energystar.gov |
| U.S. Boiler Company | CTD1000C-O | 97 | 999 | 4682287 | | data.energystar.gov |
| U.S. Boiler Company | CTD800C-O | 97 | 800 | 4682286 | | data.energystar.gov |
| U.S. Boiler Company | CTD650C-O | 97 | 650 | 4682285 | | data.energystar.gov |
| U.S. Boiler Company | CTD500C-O | 97 | 500 | 4682284 | | data.energystar.gov |
| U.S. Boiler Company | CTD400C-O | 97 | 399 | 4682283 | | data.energystar.gov |
| U.S. Boiler Company | CTD1000C | 97 | 999 | 4682282 | | data.energystar.gov |
| U.S. Boiler Company | CTD800C | 97 | 800 | 4682281 | | data.energystar.gov |
| U.S. Boiler Company | CTD650C | 97 | 650 | 4682280 | | data.energystar.gov |
| U.S. Boiler Company | CTD500C | 97 | 500 | 4682279 | | data.energystar.gov |
| U.S. Boiler Company | CTD400C | 97 | 399 | 4682278 | | data.energystar.gov |
| U.S. Boiler Company | CTD1500C-O | 96 | 1,500 | 4682277 | | data.energystar.gov |
| U.S. Boiler Company | CTD1250C-O | 97 | 1,250 | 4682276 | | data.energystar.gov |
| U.S. Boiler Company | CTD1500C | 96 | 1,500 | 4682275 | | data.energystar.gov |
| U.S. Boiler Company | CTD1250C | 97 | 1,250 | 4682274 | | data.energystar.gov |
| RBI WATER HEATERS | WB1751 | 98.7 | 1,750 | 4615201 | | data.energystar.gov |
| RBI WATER HEATERS | WB1751X | 98.7 | 1,750 | 4615200 | | data.energystar.gov |
| RBI WATER HEATERS | WB2001 | 98.4 | 1,999 | 4615199 | | data.energystar.gov |
| RBI WATER HEATERS | WB2001X | 98.3 | 1,999 | 4615198 | | data.energystar.gov |
| RBI WATER HEATERS | WB1251 | 98.4 | 1,250 | 4615197 | | data.energystar.gov |
| RBI WATER HEATERS | WB1251X | 98.1 | 1,250 | 4615196 | | data.energystar.gov |
| RBI WATER HEATERS | WB1501 | 98 | 1,500 | 4615195 | | data.energystar.gov |
| RBI WATER HEATERS | WB1501X | 98 | 1,500 | 4615194 | | data.energystar.gov |
| Rheem | RHBH-FT399 | 96.5 | 399 | 4572698 | | data.energystar.gov |
| Rheem | RHBH-FT399P | 96.5 | 399 | 4572697 | | data.energystar.gov |
| Ruud | RUHBH-FT399 | 96.5 | 399 | 4572696 | | data.energystar.gov |
| Ruud | RUHBH-FT399P | 96.5 | 399 | 4572695 | | data.energystar.gov |
| Velocity Boiler Works | PHX650C-O | 97 | 650 | 4497637 | | data.energystar.gov |
| BRYAN STEAM | BFIT650C-O | 97 | 650 | 4497635 | | data.energystar.gov |
| THERMAL SOLUTIONS | AMP650C-O | 97 | 650 | 4497333 | | data.energystar.gov |
| BRYAN STEAM | BFIT1250C | 97 | 1,250 | 4481174 | | data.energystar.gov |
| BRYAN STEAM | BFIT1500C | 96 | 1,500 | 4481173 | | data.energystar.gov |
| BRYAN STEAM | BFIT1250C-O | 97 | 1,250 | 4481172 | | data.energystar.gov |
| BRYAN STEAM | BFIT1500C-O | 96 | 1,500 | 4481171 | | data.energystar.gov |
| Velocity Boiler Works | PHX1250C | 97 | 1,250 | 4481170 | | data.energystar.gov |
| Velocity Boiler Works | PHX1500C | 96 | 1,500 | 4481169 | | data.energystar.gov |
| Velocity Boiler Works | PHX1250C-O | 97 | 1,250 | 4481168 | | data.energystar.gov |
| Velocity Boiler Works | PHX1500C-O | 96 | 1,500 | 4481167 | | data.energystar.gov |
| THERMAL SOLUTIONS | AMP1500C | 96 | 1,500 | 4480960 | | data.energystar.gov |
| THERMAL SOLUTIONS | AMP1250C-O | 97 | 1,250 | 4480959 | | data.energystar.gov |
| THERMAL SOLUTIONS | AMP1250C | 97 | 1,250 | 4480958 | | data.energystar.gov |
| THERMAL SOLUTIONS | AMP1500C-O | 96 | 1,500 | 4480957 | | data.energystar.gov |
| Velocity Boiler Works | PHX400C | 97 | 399 | 4480956 | | data.energystar.gov |
| Velocity Boiler Works | PHX500C | 97 | 500 | 4480955 | | data.energystar.gov |
| Velocity Boiler Works | PHX650C | 97 | 650 | 4480954 | | data.energystar.gov |
| Velocity Boiler Works | PHX1000C | 97 | 999 | 4480953 | | data.energystar.gov |
| Velocity Boiler Works | PHX800C | 97 | 800 | 4480952 | | data.energystar.gov |
| Velocity Boiler Works | PHX400C-O | 97 | 399 | 4480951 | | data.energystar.gov |
| Velocity Boiler Works | PHX500C-O | 97 | 500 | 4480950 | | data.energystar.gov |
| Velocity Boiler Works | PHX800C-O | 97 | 800 | 4480949 | | data.energystar.gov |
| Velocity Boiler Works | PHX1000C-O | 97 | 999 | 4480948 | | data.energystar.gov |
| BRYAN STEAM | BFIT400C | 97 | 399 | 4480938 | | data.energystar.gov |
| BRYAN STEAM | BFIT500C | 97 | 500 | 4480937 | | data.energystar.gov |
| BRYAN STEAM | BFIT650C | 97 | 650 | 4480936 | | data.energystar.gov |
| BRYAN STEAM | BFIT1000C | 97 | 999 | 4480935 | | data.energystar.gov |
| BRYAN STEAM | BFIT800C | 97 | 800 | 4480934 | | data.energystar.gov |
| BRYAN STEAM | BFIT400C-O | 97 | 399 | 4480933 | | data.energystar.gov |
| BRYAN STEAM | BFIT500C-O | 97 | 500 | 4480932 | | data.energystar.gov |
| BRYAN STEAM | BFIT800C-O | 97 | 800 | 4480931 | | data.energystar.gov |
| BRYAN STEAM | BFIT1000C-O | 97 | 999 | 4480930 | | data.energystar.gov |
| THERMAL SOLUTIONS | AMP800C-O | 97 | 800 | 4479601 | | data.energystar.gov |
| THERMAL SOLUTIONS | AMP500C-O | 97 | 500 | 4479600 | | data.energystar.gov |
| THERMAL SOLUTIONS | AMP400C-O | 97 | 399 | 4479599 | | data.energystar.gov |
| THERMAL SOLUTIONS | AMP1000C-O | 97 | 999 | 4479598 | | data.energystar.gov |
| THERMAL SOLUTIONS | AMP1000C | 97 | 999 | 4479597 | | data.energystar.gov |
| THERMAL SOLUTIONS | AMP800C | 97 | 800 | 4479596 | | data.energystar.gov |
| THERMAL SOLUTIONS | AMP650C | 97 | 650 | 4479595 | | data.energystar.gov |
| THERMAL SOLUTIONS | AMP400C | 97 | 399 | 4479594 | | data.energystar.gov |
| THERMAL SOLUTIONS | AMP500C | 97 | 500 | 4479593 | | data.energystar.gov |
| Navien | NFB700-800C | 97.5 | 799 | 4439417 | | data.energystar.gov |
| Navien | NFB700-500C | 97.5 | 499 | 4439416 | | data.energystar.gov |
| Navien | NFB700-600C | 97.5 | 599 | 4439415 | | data.energystar.gov |
| Navien | NFB700-1000C | 97.5 | 999 | 4439414 | | data.energystar.gov |
| FULTON HEATING SOLUTIONS | EXE-2000 | 97.5 | 2,000 | 3891638 | | data.energystar.gov |
Efficiency ratings across all certified models
| Rating | Models with a value | Lowest | Median | Highest |
|---|
| Thermal Efficiency (%) | 384 | 94 | 96.5 | 98.7 |
| Full Load Input Rate (kBtu/hr) | 384 | 300 | 750 | 2,500 |
Brands with certified commercial boilers
Brands with the most certified models, and the date of their latest certification.
Updated November 4, 2026. Read from ENERGY STAR certified product data, US Environmental Protection Agency (data.energystar.gov). Public domain data from the US EPA and the US Department of Energy. Products are listed as the EPA publishes them on the date this page was read, and the EPA can revise or withdraw a certification. A product is counted once, under the most specific list that holds it. For heat pumps each ENERGY STAR ID is one outdoor and indoor unit combination, so a model number can repeat. Brand names are as published. This page uses EPA data and is not endorsed or certified by the EPA or ENERGY STAR. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.