SL 14-115G3

SL 14-115G3

Why we love this product.

  • Express setup and remote monitoring
  • Easy USB programmability
  • Patented MFZ Technology for moisture management
  • Powerful turndown ratio of up to 8:1


The SL 14-115G3 residential condensing boiler from our SL-Series offers impressive efficiency and performance for residential heating applications. Equipped with a user-friendly Touch Screen Boiler Controller, this model provides express setup and remote monitoring capabilities, allowing for convenient operation and easy access to system diagnostics. The controller also offers USB programmability, true native BACnet compatibility, an intuitive alert system, and simplified load pairing.

SL 14-115G3 Boiler Features

  • User-friendly Touch Screen Boiler Controller with express setup, remote monitoring & diagnostics, and easy USB programmability.
  • Achieve cost-effective heating and minimize fuel consumption with an impressive efficiency rating of up to 96% AFUE, ensuring high energy efficiency.
  • Multiple zone pump control for up to 4 zones, eliminating the need for external pump controls.
  • Approved PVC/CPVC/PPs venting up to 480ft for flexible installation options.
  • Patented MFZ Technology for moisture management and extended component lifespan.
  • Built-in CSA/UL approved LWCO and manual reset high limit for enhanced safety.
  • Direct connection to IBC Indirect Water Tank without a primary loop for simplified setup.
  • Turndown ratio of up to 8:1 for powerful heating performance in extreme weather conditions.
  • Built-in outdoor reset control for precise regulation of water temperature.
  • Reverse flow detection for added system protection.