The Pentair ETi 400 high-efficiency pool heater (part number 461113) delivers 400,000 BTU at up to 96% thermal efficiency. Its TitanTough direct-fire titanium heat exchanger resists corrosion, and its plumbing aligns with the MasterTemp High Performance heater for a drop-in upgrade. It suits pool owners looking for faster heat-up and lower gas costs.
Key Features
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Up to 96% thermal efficiency: Saves up to 14% on energy costs compared with a traditional gas heater.
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TitanTough titanium heat exchanger: Direct-fire design with no welds, crimps, or joints that could weaken corrosion resistance.
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MasterTemp drop-in: Plumbing aligns to the MasterTemp High Performance heater.
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Category IV direct-air venting: Fully sealed vent does not require large room openings for combustion air.
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Left or right orientation: Rotatable front door lets the keypad turn 180 degrees for either-side plumbing.
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Easy service: Large removable panels give quick access to internals.
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Quiet operation: Ultra-quiet running.
Specifications
| Brand |
Pentair |
| Part Number |
461113 |
| Product Line |
ETi |
| BTU |
400,000 |
| Thermal Efficiency |
Up to 96% |
| Heat Exchanger |
TitanTough direct-fire titanium |
| Venting |
Category IV direct-air, fully sealed |
Before You Order
Confirm the fuel type, that 400,000 BTU suits your pool, and that gas supply, venting, and clearances meet local codes. Questions? Call 855-677-7796 or contact us with your model and part number.
Shipping Box Dimensions
40 x 30 x 46 in
Dimensions refer to the shipping carton.
