Brochure

Reliable & Innovative Design
Laars Mascot ST Heat Exchanger Advantage:
Hot flue gas is evenly distributed across an array of oval water tubes
The oval tube shape causes turbulent flow and releases stored heat
trapped inside the hot flue gases to better transfer heat from the water
heater to your home
Self-cleaning, condensate flows down along the tube walls and out
through condensate collection system
Uniform heat distribution reduces stress points in the heat exchanger.
Combined with erosion–and corrosion–resistant materials, the result is a
durable design for a long lifetime of use
High Performance Blower
Blower designed specifically for
use with the Laars Mascot ST heat
exchanger.
Performance curve matches required
heat exchanger air flow resulting in
ideal air to fuel ratio.
Automatic Air Gas Mixer
Combustion control system spans a
wide range of efficient and reliable
combustion rates.
Advanced Condensing Heat
Exchanger
Stainless steel water tube construction
results in superior performance at an
industry leading 0.96 energy factor
while minimizing calcium deposits for
long life.
Mixing Valve
Precision mixing of domestic hot
water ensures that the ideal water
temperature is delivered throughout
your home each and every time.
Control Display
Easy–to–use push button
and dial interface.
Modulating
Gas Valve
Clean Burning Burner
Pre-mix metal fiber burner uses
fuel efficiently and produces
ultra-low NOx and CO emissions.
Flow Control Valve
Consistent supply of ample
hot water is delivered through
this advanced modulating flow
system.
Laars Integrated Control
• Dual stage anti-freezing
mechanism
• Switched-Mode Power Supply
(SMPS) design
• Built-in gas leak detection (alarm
will activate and the unit will shut
down if a leak is detected)
Advanced Water Tube
Heat Exchanger Technology