ASME Heater
ITEM # C_ASMEHR
Description
New Hayward H-Series ASME gas heaters are designed and certified for commercial use. The flagship of our H-Series line, they combine industry-leading hydraulics, exceptional performance, energy efficiency and reliability, with planet-friendly low-NOx emmissions. Flexible connection options make them ideal for new or existing applications. Choose from 250,000 and 400,000 BTU natural gas or propane models.
- Independent left or right side electric, water and gas connections
- 2in x 2 1/2in CPVC plumbing fittings
- ASME pressure relief valve included as standard
- Electronic lockout feature prevents unauthorized access to configuration settings
- Easy installation and service via access of single front panel
- Easy gas valve adjustment
- Easy dual voltage conversion with fuse-protected circuit boards
Click the link below to find your manufacturer's data report
Models
Technical Specifications and Performance Data
| Model Number | BTU | Description | Pipe Size | Working Pressure | Dimensions (LWH) |
|---|---|---|---|---|---|
| H250FDNASME | 250,000 | Natural Gas | 2" x 2.5" | 50 PSI | 28" x 29.5" x 24" |
| H250FDPASME | 250,000 | Propane | 2" x 2.5" | 50 PSI | 28" x 29.5" x 24" |
| H400FDNASME | 400,000 | Natural Gas | 2" x 2.5" | 50 PSI | 36.5" x 29.5" x 24" |
| H400FDPASME | 400,000 | Propane | 2" x 2.5" | 50 PSI | 36.5" x 29.5" x 24" |
Dimensions
Accessories
Upgrades
Frequently Asked Questions
Brochures
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ASME Heater Sell Sheet (LITCAHA11) |
Manuals
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ASME Heater Service and Installation Manual |
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ASME Heater Owner's Manual |
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Wiring Hayward Gas Pool Heaters for Parallel Operation |
Applications
- Can be used on all commercial pools and spas

