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Weil McLain 97+ Print E-mail

WM97+ CT Wall Mount Gas Boilerweilmclain_logo


  Models: WM97+weilmclain 97 70 CT, WM97+ 110 CT, WM97+ 155 CT

Saves TIME, Saves MONEY

  • Class-Leading High Efficiency Wall Mount Boiler
  • Built-in Pre-Installed System Components
  • Advanced Controls for Flexible Cost-Saving Operations

Key Features

  • 70,000; 110,000 & 155,000 BTU input models at 95% AFUE
  • Stylish, compact wall mount design for easy installation, service and maintenance
  • Unique condensing stainless steel fire tube heat exchanger design
  • Built-in boiler circulator
  • Built-in primary/secondary piping option
  • Pre-wired terminal strip for quick and easy electrical connections
  • Convenient indirect-fired water heater connection
  • Capable to vent with PVC, PP and SS up to 100'
  • Multi-color LCD display with text - no codes
  • CT - Condensing Technology - 5 to 1 turndown ratio
  • Aqua Logic indirect fired water heater compatible



Model*                   Input MBHDOE Heating Capacity MBH

Net I=B=R Water Ratings MBH

DOE Seasonal Efficiency AFUE %

Vent Diameter InchesVent MaterialBoiler Water Content Gal.

WM 97+ 70 CT

70 14              65               57         95.2              3 PVC, CPVC, PP, SS       2.8
WM 97+ 110 CT 110 22              101               88         95.0              3 PVC, CPVC, PP, SS       2.8
WM 97+ 155 CT 155 28              143              124         95.1              3 PVC, CPVC, PP**, SS       3.4

*Natural gas field convertible to LP as standard equipment

** Requires Centrotherm SS concentric termination

THE FEDERAL TAX CREDIT WAS REINSTATED, $150 tax credit for a natural gas, propane, or oil boiler with an AFUE of not less than 95%: January 2nd - President Obama signed legislation designed to avoid the “fiscal cliff” and keep tax rates from increasing for every American who pays taxes. In addition to its many other tax provisions, the bill retroactively reinstates the 25C tax credits for highly efficient HVAC equipment that expired at the end of 2011. Specifically, the bill extends the tax credits that expired in 2011 from January 1, 2012, until December 31, 2013, for qualified equipment listed in Section 25C of the Internal Revenue Code. Because the credits were made retroactive to January 1, 2012, they can be used for qualified equipment that was installed any time after December 31, 2011.


 Sentinel X100 Water Treatment included with boiler
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