Raytherm Hydronic Boilers, 926-1758
Raypak's family of Raytherm Hydronic Boilers, 926-1758, feature 82% efficiency, cast-iron headers with copper finned tube heat exchangers, and stainless steel burners.
BASIC DATA
*Propane input is 94% of stated value
Available Firing Modes
Features:
| Model Number | Full Input in (BTUH) |
| H-926 | 926,000* |
| H-1083 | 1,083,000* |
| H-1178 | 1,178,000* |
| H-1287 | 1,287,000* |
| H-1414 | 1,414,000* |
| H-1571 | 1,571,000* |
| H-1758 | 1,758,000* |
Available Firing Modes
| H1 | Mechanical modulation, setpoint 150F-210F | |
| H3 | 2-Stage | |
| H4 | On-off | |
| H5 | Mechanical modulation, setpoint 110F-170F | |
| H9 | 4-Stage | |
Features:
- Outdoor Only
- Cast-Iron Headers with Copper Finned Tube Heat Exchanger
Brass headers and cupro-nickel tubes available as options. AB 1953 compliant, single bank, straight through design delivers lowest pressure drop. Integral fins have ten times the heat transfer surface of plain tubes. - 82% Efficiency
- Corrosion Resistant Steel
Fittings are brush galvanized against rust. Heat shields are corrosion-resistant steel. Jacket has Polytuf powder coat finish. - 24-Volt Controls
Are totally enclosed for protection. Door is easily removed for inspection and service. - Floating Return Header
Immunizes heat exchanger from thermal shock. - Tube Sheet and “O” Ring Construction
Eliminates the repair and maintenance problems associated with rolling tubes directly into a casting. - Interlocking Refractory Panels
Sealed corners reduce radiation loss. - Stainless Steel Burners
Maintain precise combustion at all firing rates, burns quietly and won’t clog or corrode. - Slide-Out Burner Tray
Allows easy inspection and service. - Spark-to-Pilot Ignition
The most dependable ignition method available. - Available for Natural Gas or Propane.