HTH 00650 AX
Hamilton Engineering · Commercial Boiler
ENERGY STAR CertifiedCommercial Boilers →
Thermal Efficiency
96.3%
Input Rate
650MBTU/hr
Turndown Ratio
10.00
Application
Outdoor
Hamilton Engineering HTH 00650 AX: thermal eff 96.3%, around the middle of the range for commercial boilers (category median 96.5%).
Thermal eff: worse than 82% of the 41 comparable models within 10% of this size. Their median is 97 %.
Where this model sits
Input650MBTU/hr
300median 7502500
Thermal Eff96.3%
94median 96.598.7
The Hamilton Engineering HTH 00650 AX is a 650 MBTU/hr commercial boiler. At 96.3 % it ranks around the middle of the 386 certified commercial boilers models. Among similar-sized commercial boilers (within 10% of its size), it is less efficient than the peer median of 97 %.
Specifications
| Performance | |
|---|---|
| Thermal Efficiency | 96.3% |
| Full-Load Input Rate | 650MBTU/hr |
| Turndown Ratio | 10.00 |
| Configuration | |
| Application | Outdoor |
| Control Type | Multi-stage |
| Model Name | Torus Outdoor Series |
| Identifiers | |
| Model Number | HTH 00650 AX |
| ENERGY STAR ID | ES_1083631_HTH 00650 AX_07212026010147_10218687545 |
| Partner | Mestek, Inc. |
| Date Qualified | 2026-08-04 |
| Available From | 2023-10-12 |
| Markets | United States, Canada |
Documentation
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