RAYTHERM® HYDRONIC BOILERS, 962-1826
- 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. Cat I venting
- Indoor Only
- Corrosion Resistant Steel
Fittings are brush galvanized against rust. Heat shields are corrosion-resistant steel. Jacket has Polytuf powder coat finish. - Minimum Inlet Water Temperature 105F
- 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
- 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
- Interlocking Refractory Panels
Sealed corners reduce radiation loss.
Domestic Hot Water Five (5) years from Effective Date. Includes copper heat exchanger with bronze or cast iron waterways. Ten (10) years from Effective Date. Includes only cupro-nickel heat exchanger with bronze or cast iron waterways. Space Heating (Closed Loop System) Ten (10) years from Effective Date. Includes both cupro-nickel and copper heat exchanger with bronze or cast iron waterways. Thermal Shock Limited Warranty Twenty five(25) years from Effective Date against “Thermal Shock” (excluded, however, if caused by heater operation at large changes exceeding 150ºF between the water temperature at intake and heater temperature, or operating at heater temperatures exceeding 240ºF)
