H-Series Heaters

The Hayward Universal H-Series Gas Pool Heater is a high-efficiency, durable, and user-friendly heating solution designed to extend the swimming season by delivering consistent, reliable warmth to pools and spas. Built with advanced combustion technology and corrosion-resistant materials, the H-Series is engineered for longevity, energy efficiency, and easy operation, making it ideal for residential and commercial pool applications.

How the Hayward Universal H-Series Heater Works:

1. Gas Combustion & Heat Exchange Process

• Natural Gas or Propane Fuel – The heater burns gas in a high-efficiency combustion chamber.

• Cupro-Nickel or Polymer-Titanium Heat Exchanger – Transfers heat from combustion gases to pool water while resisting corrosion.

• Water Flow Activation – A built-in flow switch ensures the heater only operates when water is circulating, preventing damage.

• Temperature Control – The heater maintains the desired water temperature set by the user, automatically adjusting flame output.

2. Smart Operation & Safety Features

• Electronic Ignition System – No standing pilot light, improving energy efficiency.

• Auto-Diagnostic System – Detects issues (e.g., low gas pressure, water flow problems) and displays error codes.

• Venturi Air Mixing System – Optimizes combustion for lower emissions and higher efficiency.

• Freeze Protection Mode – Prevents damage in cold weather by circulating water when temperatures drop.

3. Compatibility & Integration

• Works with single-speed, variable-speed, and solar pool pumps.

• Can be paired with Hayward automation systems (OmniLogic, ProLogic, AquaPlus) for remote control.

Key Features of the Hayward Universal H-Series Heater

✔ High-Efficiency Heating – Up to 84% thermal efficiency, reducing fuel costs.

✔ Durable Heat Exchanger Options – Cupro-Nickel (Standard) – Corrosion-resistant for most pools.

✔ Polymer-Titanium (Saltwater Pools) – Extra protection against salt corrosion.

✔ Electronic Ignition (No Standing Pilot) – Saves energy and improves reliability.

✔ Digital Display & Controls – Easy-to-read interface with precise temperature adjustments (±1°F).

✔ Auto-Diagnostic System – LED error codes for quick troubleshooting.

✔ Low NOx Emissions – Complies with California and other environmental regulations.

✔ Universal Mounting – Fits most existing pad configurations (vertical or horizontal venting).

✔ Quiet Operation – Advanced combustion design minimizes noise.

✔ Flow Switch Protection – Prevents dry firing (heater won’t operate without water flow).

Benefits of the H-Series Heater

✅ Fast Heating – Quickly raises pool temperature for extended swimming seasons.

✅ Energy Efficient – Reduces gas consumption compared to older pilot-light models.

✅ Saltwater Compatible – Polymer-Titanium option resists salt corrosion.

✅ Low Maintenance – Self-diagnostic system reduces service calls.

✅ Quiet & Reliable – Smooth operation with minimal noise.

Installation Requirements

• Proper Gas Supply – Adequate gas line sizing (consult a professional).

• Venting – Horizontal or vertical PVC venting (included in some models).

• Water Flow – Must be installed after the filter but before chemical feeders.

• Clearance Space – Follow manufacturer guidelines for airflow.