Pentair ETi 400 High-Efficiency Pool & Spa Heater (34567845)

ETi 400 High-Efficiency Gas Pool Heater

Unmatched Durability. Exceptional Efficiency. Rapid Heating.

The ETi 400 Gas Pool Heater delivers rapid, reliable heating with the industry's most robust and innovative heat exchanger — the Titan-Tough Direct-Fire Titanium Heat Exchanger. Built to withstand extreme conditions and resist corrosion, it's the strongest in its class, offering years of dependable performance.

With an impressive 96% thermal efficiency, the ETi 400 ensures that more of your energy dollars go directly toward heating your pool — not up the flue. Combined with ultra-quiet operation and a streamlined installation process, this premium heater is ideal for homeowners seeking powerful performance with long-term peace of mind.

Key Features:

✅ Titan-Tough™ Titanium Heat Exchanger

• Industry-exclusive, corrosion-resistant titanium construction

• Built to last, even in the harshest environments

✅ Best-in-Class Thermal Efficiency

• 96% efficiency rating means lower energy bills and faster heat-up times

✅ Ultra-Quiet Operation

• Low decibel output ensures peaceful poolside enjoyment

✅ Quick Heat-Up Performance

• Fast, effective heating brings your pool to the perfect temperature in no time

✅ Simplified Installation

• Designed for straightforward setup and service

Powerful, efficient, and built to endure — the ETi 400 is the smart upgrade for year-round pool comfort.