Dealer Login

Did you forget your password?

Need Help?

Click here

Not a Member?

Register

Overview

The World’s First Pool Heater With a Direct Fire Pure Titanium Heat Exchanger

When you want quality, strength and durability, you want the corrosion resistance of titanium. The ETi 400 is the world’s first heater with the TitanTough™ direct-fire pure titanium heat exchanger for long-lasting, thermal and energy-efficient heat.



  • Longest-lasting heat exchanger ever built
  • Incredible 96% thermal efficiency—more heat gets into pool water faster
  • Best-in-class energy savings
  • Can now be converted from Natural to Propane Gas by purchasing a Propane Gas Conversion Kit.

Icon 1

CORROSION RESISTANT

Icon 2

96% THERMAL EFFICIENCY

Icon 3

CONVENIENT INSTALLATION

Product Features

Pentair ETi 400 high efficiency pool heater is the first pool heater with a pure titanium heat exchanger.

Product Components

  • OneStands up to the toughest conditions 1,800° F flame temperatures and pool water chemistry are all in a day’s work for titanium.
  • TwoDesign elements that boost durability and efficiency. No welds, crimps or joints that reduce corrosion resistance. Tubing is shaped for maximum flow and efficiency.
  • ThreeIndustrial chemical processors lean on titanium. When handling concentrated chlorine compounds, industrial processors rely on the corrosion resistance of titanium piping and heat exchangers.
Pentair ETi 400 high efficiency pool heater is 96% efficient.

Unmatched Durability and Efficiency

  • EASY TO VENT PROPERLY: Fully sealed Category IV direct-air vent does not require large room openings for combustion air
  • ULTRA-QUIET OPERATION: Great for you, great for your neighbors
  • INSTALL IN LEFT OR RIGHT ORIENTATION: Rotatable front door allows control pad to be rotated 180 degrees, so this heater can be plumbed on the right- or left-hand side

How Much Can You Save With a 96% Efficient Heater?
(Average Annual Savings)

ETi 400 Icon Water 1

25,000 GALLON POOL

ETi 400 Icon Water 2

50,000 GALLON POOL

ETi 400 Icon Water 3

75,000 GALLON POOL

Pentair ETi 400 high efficiency pool heater uses pure titanium in its heat exchanger to increase efficiency and reduce corrosion.

A Metal That Gets Respect

Titanium is known for excellent corrosion resistance, high strength and light weight. The job of the heat exchanger is to capture the heat from burning gas and transfer it to your pool’s water—the more efficiently, the better. But, the combination of operating heat and pool water chemistry can be tough on exchangers, leading to corrosion and failure. That’s why we made the ETi 400 High-Efficiency Heater’s direct-fire heat exchanger from pure titanium. It provides long life under extreme conditions.

Product Resources

ETi 400 High Efficiency Gas Heater
Part Number Dimensions Carton Wt. (Lbs)
461113 39.9 L x 30" W x 45.7" H 379
CSA
CSA
CSA Star
CSA Design
ACCESSORIES
Product Description Approx. Ship. Weight (lbs)
475971 Indoor Direct Air Intake Kit 5 lbs
475612 Condensate Neutralizer Kit 8 lbs
476072 Propane Conversion Kit 1 lb

Need equipment or service for your pool?

Use our dealer locator to find a trusted Pentair dealer or technician near you.

Go