Specs and Docs


Mascot® FT Heating Only

The High Efficiency Mascot FT (Fire Tube) Boiler

The Mascot FT is a cascadable high-efficiency wall mounted boiler that easily satisfies the space heating needs of the modern home. Powering the Mascot FT is an advanced fire tube heat exchanger that uses the latest in heating tube technology to deliver quick heating response, exceptional efficiency, and years of reliable service.

It is available in 5 different sizes. 80, 100, 120, 140, and 199 MBH and has an industry leading 10 year heat exchanger and 5 years parts warranty. 

The Mascot FT is cascadable up to 20 total units, for a maximum heating capacity of 4 million BTU/h.


  • Natural Gas & Propane Models
  • 95% Efficient (AFUE)
  • Up to 10:1 Modulation
  • Vent up to 100 ft in PVC, CPVC & Polypropylene
  • Environmentally Friendly
  • Low NOx Emissions
  • Integrated DHW Indirect Tank
  • Superior DHW Performance on Combi Models
  • Cascadable up to 20 total units

Enjoy the quick heating response, exceptional efficiency and years of reliable service that the Mascot FT delivers. Greatly reduce your home’s heating cost when compared to older, low efficiency boilers!  Available as a wall hung or floor standing ‘Combi’ model that provides both heating and domestic hot water, and as a wall hung ‘Heating Only’ model.


Advanced Intuitive Controls

Every Mascot FT is equipped with the advanced Laars Integrated Control System

  • Easy to use dial and push button input system with large backlit display
  • Functions are clearly displayed for quick set-up and diagnostics
  • Quick access buttons for temperature control and boiler status functions
  • Outdoor reset feature for fuel savings


Advanced Technology

Mascot FT models utilize an advanced fire tube heat exchanger technology that offers ultra-high efficiency and many years of reliable service.

The Laars Mascot FT Heat Exchanger Advantage

  • The Mascot FT stainless steel sleeved aluminum core heating tubes transfer heat 10 times faster than stainless alone
    1. Maximizes the Mascot FT efficiency and heating response
  • Hot flue gas is evenly divided along the inside of the multi-channel fire tubes while causing turbulent flow
    1. Releases stored heat trapped inside the hot flue gases to better transfer heat from the boiler to your home
    2. Reduces stress points in the heat exchanger for longer boiler life
  • Heating surface is up to five times larger than other condensing boilers
    1. Results in a smaller and lighter weight unit