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Munchkin Contender High Efficiency Boiler

Munchkin Contender High Efficiency Boiler Pricing (Free Shipping)

Today's customers are making higher demands regarding ease of operation and energy consumption. High efficiency condensing technology is the efficient solution. Heat Transfer introduces the 21st century solution, the Munchkin Contender Condensing Gas Fired Heater. Munchkin Contender is not only easy to install, but is highly efficient and will provide years of service free operation.

The Benefits of Condensing Technology

The major advantage of condensing technology is to extract more heat from the exhaust gas compared to conventional systems. The Heat Exchanger incorporates a larger surface area constructed of high quality stainless steel.

This additional surface area allows the unit to extract all the latent energy from the combustion process and recapture from the exhaust stream and the water vapor contained within the exhaust gas. Condensing heaters extract so much heated energy they are vented with standard plastic pipe! The Munchkin Contender burns less gas to produce the same amount of heat as a conventional system.


  • Advanced 21st century space age composite construction provides extra durability and long life in a fully condensing appliance
  • Quiet operation
  • Compact design
  • Lightweight plastic cabinet for dent resistance
  • Ease of serviceability
  • Fully modulating burner
  • Up to .95EF, / 93%, AFUE
  • Stainless steel heat exchanger for higher corrosion resistance
  • Pre-wired field connections for ease of installation of optional Vision 1, 2 or 3 control system
  • Wall hung with all mechanical connections on bottom of unit
  • Vents with 2" Schedule 40 PVC
  • Environmentally fnendly
  • Ultra low NOx emission
  • Micro-processor control system
  • Indirect Priority Function when used with optional Vision 1 system and SuperStor Indirect

Standard Features

  • Modulating burner 5 to 1 turndown
  • Two Stage Operation for Central Heating and DHW
  • Energy Star Rated
  • Direct Vent Sealed Combustion
  • 30 PSI Relief Valve
  • Direct Spark Ignition System
  • High Grade Stainless Steel Woven Fiber Mesh Burner
  • Ultra Low NOx Operation
  • Zero Clearance to Combustibles
  • Terminal Strip for Ease of Field Wiring
  • Natural or LP Gas Conversion
  • Inlet and Outle Temperature Sensor
  • Central Heating Pump Relay w/ Freeze Protection
  • Wall Mounts Save Floor Space
  • On/Off Switch
  • 12 Year Limited Warranty
  • Alarm Contact
  • Digital Operating Control
  • LED Display System Operation
  • 120 Volt Convenience Outlet for Condensation Pump
  • Outside Termination Fittings- Tee 2" and Coupling 2"

Literature Available:

Munchkin Contender Boilers: 

Natural Gas and Propane Available

Model Number Input BTUH DOE Capacity Shipping Weight A.F.U.E %
MC50 18,000 to 50,000 16,000 to 46,000 74 lbs. 92
MC80 19,000 to 80,000  17,000 to 74,000  74 lbs. 92
MC99 44,000 to 99,000 41,000 to 92,000 84 lbs. 93
MC120 44,000 to 120,000 41,000 to 110,000 84 lbs. 92

Check local code to see if ASME H Stamp is needed.

ASME Certification Not Available on Munchkin Contender Models

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