Sta-Rite Max-E-Therm SR333NA Heater uses is packed with advanced technology and uses a weather-proof frame, effortless controls, and an environmentally conscience exhaust. It is suitable for both outdoor and indoor pools or spas.

Features:

• Lightweight, yet durable construction lets the unit withstand the harshest of utilizations, such as to low pH, high flow and heavy use.
• Lightweight - Lightest heater in its class.
• Compact design - Ideal for retro-fit installations.
• Simple to Switch - Change gas sources with installation of separate orifice.
• Best in class energy efficiency. Standard Copper Heat Exchanger 84% efficient. Heavy-Duty (HD) Cupro-Nickel Heat Exchanger 82% efficient.
• Rust-resistant shell - sleek, matte dark housing is made of Dura-Glas - a premium material that can resist the heat and cold of the elements.
• Lower Operating Costs - 84% efficiency rating of Sta-Rite SR333 means lower energy consumption and in turn lower costs for you.
• Environmentally Friendly - All SR333 units are low NOx .

Product Includes a 1 Year Manufacturer's Warranty (proof of installation by a licensed technician is required for valid warranty coverage).

Warranty Coverage: At the manufacturer's discretion. Limited warranty covers replacement parts ONLY if the heater is installed with a pool or spa. The Applicable Warranty Period is one (1) year from the Purchase Date or 90 Days on the Heating Element. The warranty does not cover damage caused by improper water chemistry. The warranty will be void if the heater is not installed by a licensed technician, or the heater has been installed on a soft sided pool. Please see product manual for specific warranty details.

This unit is not compatible with soft-sided pools.