The cast iron heat exchanger is the heart of these boilers. It is manufactured in Zanesville' Ohio and is designed for years of reliable service. Each heat exchanger is water and pressure tested prior to assembly. The boilers themselves are built in Lancaster' PA. Every component used in the IQ family of boilers is subject to strict standards of quality control and performance verification which are used throughout the manufacturing process.
| MODEL | Input MBtuH | Output MBtuH | AFUE | Dimensions HxWxD | Water Content Gal. | Weight Lbs. |
|---|---|---|---|---|---|---|
| ES2-3 | 70.0 | 59.0 | 85.0 | 41x12.75x33 | 2.00 | 254 |
| ES2-4 | 105.0 | 89.0 | 85.0 | 41x15.5x33 | 3.00 | 301 |
| ES2-5 | 140.0 | 119.0 | 85.0 | 41x18.5x33 | 4.00 | 353 |
| ES2-6 | 175.0 | 149.0 | 85.0 | 41x21.5x33 | 5.00 | 405 |
| ES2-7 | 210.0 | 178.0 | 85.0 | 41x24.75x33 | 6.00 | 464 |
| ES2-8 | 245.0 | 208.0 | 85.0 | 41x27.75x33 | 7.00 | 514 |
| ES2-9 | 280.0 | 238.0 | 85.0 | 41x30.75x33 | 8.00 | 564 |
