Primary Heat Exchanger is Constructed of Commercial-Grade Copper that is More Resilient to Erosion and is 25X Better at Heat Transfer than Stainless Steel Thus Stabilizing Outgoing Water Temperatures Quicker

Secondary Heat Exchanger is Made of Type 316L Stainless Steel to Protect Against Corrosion

Factory-Installed Power Cord

Easy-Link up to 4 Units

Energy Star® Qualified

AHRI Certified

Lead-Free

Primary Heat Exchanger is Constructed of Commercial-Grade Copper that is More Resilient to Erosion and is 25X Better at Heat Transfer than Stainless Steel Thus Stabilizing Outgoing Water Temperatures Quicker

Secondary Heat Exchanger is Made of Type 316L Stainless Steel to Protect Against Corrosion

Factory-Installed Power Cord

Easy-Link up to 4 Units

Energy Star® Qualified

AHRI Certified

Lead-Free

Front Diagnostic Lights

Switchable Priority

Built-In Priority Protection

Simplified Wiring

Premium Sealed Relays

Compact Design

Fuse Protected

100 Percent Factory Tested

Isolated End Switch

Contractor Friendly PC Board Layout

Universal Thermostat Compatibility

24 Volt Power Output for Hard Wired Thermostats

Field Replaceable Transformer

UL Approved

Made in USA

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

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