Hi Delta® Pool Heaters, 302B-902B

The Hi Delta® line of fan-assisted combustion units offers solid performance and low emissions with flexible control and easy-to-understand diagnostics.


 Model Number
Full Input in BTUH
Indoor Stack Dia.
Bypass Options
Thermostatic Bypass None (Field-Supplied) CWR
 P-302B  300,000  5" STD  Yes  Yes
 P-402B  399,000  6" STD  Yes  Yes
 P-502B  500,000  6" STD  Yes  Yes
 P-652B  650,000  8" STD  Yes  Yes
 P-752B  750,000  8" STD
 Yes  Yes
 P-902B  900,000  8" STD
 Yes  Yes

  • All models Indoor/Outdoor certified.
  • Certified to the ANSI Z21.56 pool heater standard.
  • Vertical vented as Category I, sidewall vented as Category III.
  • Efficiency: 85%.
  • Patented burner "security blanket" enhances staged combustion, minimizes installation and start-up issues, and protects burners from metal fatigue.
  • Cupro-nickel finned-tube heat exchanger with brass headers.  AB1953 low-lead compliant.
  • Sidewall venting capable. No extractor needed for most applications.  An extra pat is needed for sidewall venting.
  • Ducted combustion air ready. TruSeal® CSA-Certified direct-vent available.
  • Status display and on-board diagnostic center, English, no codes.
  • Certified to SCAQMD Rule 1146.2; meets all NOx regulations.
  • Available for natural gas or propane.
Bypass Options:
  • The standard external bypass uses a thermostatically-controlled valve to adjust bypass flow and achieve cold-water protection.
  • All units available without an external bypass; cold-water protection provided in the field.
  • The Cold Water Run (CWR) option provides electronic control of a variable-speed pump to continuously adjust bypass flow, achieving real-time cold-water protection.