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High Efficiency VSL

  • Fuel: Gas Fired
  • System: Hot Water
  • Combustion: Modulating, Sealed Combustion
  • Capacity: 1 size 30-160 MBH Input
  • Efficiency: 92% AFUE

The Slant/Fin VSL-160 Modulating, condensing gas boiler stands at the top in performance, safety and environmental ratings. This Energy Star rated, high efficient boiler is equipped with a stainless steel fecralloy fiber mesh burner and is available for natural or propane gas. The ASME Stainless steel heat exchanger has unparralled resistance to corrosion. A proven European Design packaged and designed for an American Company to serve the American people is sure to
satisfy your requirements.


Product Features

  • 92% AFUE
  • Available as heating only or Combi-boiler
  • Set as NG and field convertible to LP with no extra kit requirements
  • Modulation Ratio 1:5.3
  • Unparalleled Resistance to corrosion
  • Microprocessor Control with Safety Function and Auto-diagnostics
  • Outdoor Reset
  • Direct Vent/Sealed Combustion
  • Venting options are Separate or concentric piping systems
  • ASME Stainless Steel Heat Exchanger
  • Low Pressure Drop through Heat Exchanger
  • Low Lead CSA Approval to meet toughest VT & CA Legislation
  • 5 Year Parts and Labor Warranty, plus 15 Year Limited lifetime Warranty

Combi-Unit Also Includes

  • 2.6 Gal. Expansion Tank
  • Circulator
  • DHW Heat Exchanger
  • Divertor Valve

How It Works

The VSL is a hot water boiler heating system which has the capability to modulate the firing rate to 20% of it’s rated input. This modulation means fewer cycles which results in lower operating costs. An easy to use control displays system status and fully adjustable parameter values plus diagnostic codes for easy troubleshooting and optimum system performance. The Stainless Steel heat exchanger with shared radial circulation, the air/gas modulation system, the aquajet DHW exchanger and the Hydroplus electronic control are all European design and tested for the highest standards. Condensate washes combustion residue away when streaming down the tubes resulting in constant efficiency and reduced maintenance.


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