XTherm Condensing Pool Heaters, 2505-4005

Raypak’s XTherm product packs everything you need into one cabinet – a vertical heat exchanger, ultra-high efficiency (up to 97%), a heater pumping package, easy-to-understand diagnostics, low emissions, even a built-in multi-unit controller. The result is a pool heater that is practically plug-and-play.

Model Number
Full Input BTUH
Indoor Stack Dia.
P-2505 2,501,000 10"
P-3005 3,000,000 10"
P-3505 3,500,000 10"
P-4005 4,000,000 12"
 XTherm Condensing Pool Heaters, 2505-4005

  • 97% Thermal Efficiency at Full Rate.
  • Positive vent pressure, Condensing Appliance.  Cat IV Vent Required.
  • Bronze Headers with Cupro-Nickel Finned-Tube Primary Heat Exchanger. 316L Stainless Steel Condensing Heat Exchanger. ASME Section IV constructed and stamped, National Board registered.
  • CSA Low-Lead certified, less than 0.25% Lead.
  • Certified to ANSI Z21.56.
  • Minimum Continuous Inlet Water Temperature: 50°F.
  • Maximum Setpoint: 106°F.
  • On/Off Operation with Soft Start.
  • VERSA IC® Control Package with color touchscreen display.
  • Status Display Lights.
  • Cascade control of up to 8 units, no external sequencer required.
  • Cascade in parallel or sequential modulation modes.
  • Diagnostics with History, English, no codes.
  • Modbus RTU BMS port (RS485).
  • 0-10 VDC BMS Interface (Setpoint or Direct Drive).
  • All models indoor/outdoor construction.
  • Engineered with precisely matched system components.
  • 100% Factory Fire Tested.
  • Complete cabinet protects all controls and wiring. Tough, rust-resistant powder-coat finish.
  • Suitable for altitudes up to 10,000 ft. (derate above 5,000 ft.).
  • Available for natural gas or propane.
  • Integral Combustion Air Filter (MERV8).
  • External injection pump (shipped loose).
  • Quiet Operation.
  • Proudly Assembled in the USA.


  • BACNet IP, BACnet MS/TP, Modbus TCP, N2 Metasys (B-85)
  • Lonworks (B-86)
  • Centrotherm® Polypropylene Vent Adapter (D-33)
  • Alarm with 4” Bell (E-5)
  • Low Water Cutoff (F-10)
  • Condensate treatment kit (Z-12)


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