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APPLICATIONS: Ideal for use in residential and commercial applications for hydronic space heating and potable water heating. Suited for radiant floor heating, baseboard, hydro-heat pump and snow melting systems. With optional equipment, it can be used as a single heat source in combination systems for potable hot water and radiant heating. Designed as whole house alternatives to traditional tank type water heaters or for use as supplements to renewable energy systems including solar and geothermal.  Protect from rain and freezing.



  • Digital microprocessor control provides precise temperature and flow control without flicker or other power quality issues

  • UL 834 Listed for Space Heating Applications

  • Activates at less than 0.30 GPM Standard ¾" NPT plumbing connections with no flow restrictions

  • Saves energy: Activates only on demand

  • Compatible with all plumbing designs including recirculating, tubing and manifold systems

  • Water level detect – No more heating element burnout

  • Uses standard field-replaceable immersion heating elements

  • Self-diagnostics including leak detection shut-down

  • High performance DuPont™ Zytel® nylon chamber material

  • Rugged DuPont ™ Crastin® PBT polyester case

  • Rust & corrosion resistant

  • UL Classified in accordance with NSF/ANSI 372 to meet or exceed all current lead in drinking water requirements

  • Ten Year Limited Warranty (See written warranty for complete details)

Download Specification Sheets:







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