Zodiac r0805805 Heat Exchanger Header Assembly 400K

Product Description

The ZODIAC r0805805 is a heat exchanger header assembly rated at 400K BTU/h, designed for pool heating systems. This assembly serves as a core combustion-side component, managing heat transfer between the burner section and pool water circuit. At 399,000 BTU/h output and 84% thermal efficiency, it is sized for demanding residential and commercial pool heating applications. Installation is performed by licensed pool and HVAC technicians as part of a heater service or component replacement procedure.

This header assembly is used in pool heater systems requiring a 400K BTU/h heat exchanger replacement. It is an OEM-style component suited to gas-fired pool heater installations where the original header assembly has failed or shows signs of corrosion, scale buildup, or combustion damage. The 400K capacity rating makes it applicable to larger in-ground pool systems and commercial aquatic facilities where sustained high-output heating is required.

Key Features

• 399,000 BTU/h rated output for high-capacity pool heating
• 84% thermal efficiency rating
• ASME-compliant combustion chamber construction
• OEM replacement assembly for direct service swap
• Designed for gas-fired pool heater applications

Compatibility

Designed as an OEM-style replacement heat exchanger header assembly for 400K BTU/h gas-fired pool heaters. Refer to the heater manufacturer documentation to confirm fitment before installation.

Installation Notes

Installation should be performed by a licensed pool service technician or HVAC professional familiar with gas-fired pool heater systems. Shut off gas supply and electrical power to the heater before disassembling any combustion components. Inspect all associated gaskets, seals, and flue connections during service and replace as needed. Follow local mechanical and gas codes when reinstalling and recommissioning the heater.

Technical Specifications

• Capacity: 399,000 BTU/h
• Thermal Efficiency: 84%
• Compliance: ASME

Standard Information

• Brand: ZODIAC
• Manufacturer Part Number: r0805805