A pre-charged air chamber allows for system water expansion

The air charge is controlled via a charging valve located on the top or bottom of the tank

Additionally, both tank lines' diaphragms are oversized, which maximizes drawdown and minimizes wear

This design feature virtually eliminates diaphragm stretch, further promoting longevity

A pre-charged air chamber allows for system water expansion

The air charge is controlled via a charging valve located on the top or bottom of the tank

SXHT goes even one step further with our patented CAD2 diaphragm, offering even lower permeability rates at higher temperature

Additionally, both tank lines' diaphragms are oversized, which maximizes drawdown and minimizes wear

This design feature virtually eliminates diaphragm stretch, further promoting longevity

Constructed of the highest quality steel, the HTX and SXHT are true work horses

HTX comes standard with a 100% butyl diaphragm

SXHT goes even one step further with our patented CAD2 diaphragm, offering even lower permeability rates at higher temperatures

Additionally, both tank lines diaphragms are oversized, which maximizes drawdown and minimizes wear

This design feature virtually eliminates diaphragm stretch, further promoting longevity

Modulating Ultra Force High Efficiency Power Vent is an industry leader in high efficiency commercial water heating

The current modulating models adjust firing rate to the specific demand further increasing efficiency and money savings

Exclusive State designed color touch display control system

Provides detailed water heater status information

Built-in diagnostics

Intelligent Demand Response (IDR) feature senses large water draws and automatically adjusts the differential set point

This feature increases the hot water available when it is needed the most

SUBMERGED COMBUSTION CHAMBER, with HELICAL HEAT EXCHANGER COIL-Positioned in center of tank, surrounded by water to virtually eliminate radiant heat loss from chamber

Spiral heat exchanger keeps hot burner gases swirling, uses centrifugal force to maximize efficiency of heat transfer to water in tank

Spiral heat exchanger reduces lime scale from forming on water-side surfaces, which maintains energy efficiency over time

POWERED ANODES Standard ON ALL MODELS-Provides long-lasting tank protection in varying water conditions

Powered anodes are non-sacrificial

Automatically adjusts output needed to properly protect the tank

MECHANICAL VENTING VERSATILITY-Conventional power venting or direct venting

Vents vertically or through a sidewall

Front located exhaust and condensate connections allow for easy install and access

Energy Star® Rated

Lead-Free

Brass threads provide a metal-to-metal seal that ensures a leak-free installation

Integrated wrench flats enable secure installation without damage to the housing

McDonnell and Miller's patented Self-cleaning probe minimizes scale build-up and extends the recommended cleaning interval to 5 years

"Plug and Play" wiring harnesses are available for most residential gas-burning boilers

Lead-Free

Lead-Free