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MASCOT ST Specifications
SPECIFICATION UNITS / CONDITIONMSTWW199
Energy Factor (Efficiency)-
Turndown -
Fuel -
Input, Max Fire MBH (kW) 199 (58)
Output, Max Fire MBH (kW) 193 (56)
35°F Temp Rise - GPM (l/m) 11 (42)
45°F Temp Rise - GPM (l/m)8.5 (32)
77°F Temp Rise - GPM (l/m)5.0 (19)
Minimum Flow Rate GPM (l/m)
Water Pressure psi (kPa)
Pressure Relief Settings psi (kPa)
NG(In WC)
LP(In WC)
Vent Material -
Power SupplyVolts / Hertz
Max Power Load Watts
Weight Unit lbs. (kg) 88 (40)
Weight Shipping lbs. (kg) 100 (45)
Dimention (W x H x D) inches 17.3 x 27.6 x 14.8
Warranty -
120 / 60
135
10:1
Natural Gas or Propane
15 - 150 (103 - 1034)
0.96
Limited 12 Year Residential Warranty
DHW Flow Rate
Vent Diameter / Eq Length inches / ft
Gas Supply Pressure
0.5 (1.9)
5.5" to 10.5"
9.5" to 13.0"
150 (1034)
2 /15
3 / 100
PVC, CPVC, Polypropylene
800.900.9276 • FAX [phone] (Customer Service, Service Advisors)
20 Industrial Way, Rochester, NH 03867 • 603.335.6300 • FAX [phone] (Applications Engineering)
1869 Sismet Road, Mississauga, Ontario, Canada L4W 1W8 • 905.238.0100 • FAX [phone]
www.Laars.com Litho in U.S.A. © Laars Heating Systems Co. 1607 Doc. 1312A
Laars Heating Systems Company reserves the right to change specifications, components, features, or to discontinue products without notice.
Item Description Diameter
Exhaust Outlet Pipe Collar
Air Intake Collar
Gas Inlet Connection (NPT)
DHW Outlet (NPT)
DHW Inlet (NPT)
Condensate Line (NPT)
Cold Water Inlet Filter
A
B
C
D
E
F
G
3"
3"
3/4"
3/4"
3/4"
1/2"
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