Phoenix Plus Water Heater

Up to 95% Ultra High Thermal Efficiency

The Phoenix Plus is HTP’s most resilient unit, designed for indoor and outdoor commercial applications. The heavy duty outdoor enclosure protects the internal components. The insulated tanks and dual low NOx combustion systems* work together to achieve built-in redundancy and extremely high efficiencies, modulation inputs reach 10% of input capacity and a 95% thermal efficiency.
*199k model has one combustion system

Stainless Steel Tank
Laser welded 316L stainless steel tank construction is corrosion resistant, eliminating the need for anode rods and protecting the tank against harsh water conditions for a lifetime of durability against leaks.

Versatile Range
Available in 4 BTU sizes ranging from 199k to 399k suitable for high demand commercial applications including apartment buildings, restaurants, hotels schools, and more.

Ultra High Efficiency
Dual combustion system offers built-in redundancy for higher energy savings. High system efficiency even during low load conditions, the modulating burner operates at a 10 to 1 turndown ratio, matching fuel consumption to demand.
*199k model features one combustion system; cannot be staged - operates at 5:1 turndown

Manufacturer's Website Technical Data Sheet
Brochure Specifications
Installation Manual Warranty


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