Efficiency Gas Heater
The Highest Efficiency Ever.
Longest-Lasting Heat Exchanger Ever Built.
The ETi 400
High Efficiency Heater features the TitanTough™
Direct-Fire Pure Titanium Heat Exchanger,
longest-lasting heat exchanger ever built.
And it delivers
96% thermal efficiency,
the highest of any pool heater.
400 heater provides excellent flexibility for installation,
with fully sealed Category IV direct air venting
does not require large room openings for combustion air.