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Laars Mascot HT-Series Boilers
Energy Efficient Condensing Boilers

Natural Gas or Liquid Propane
FREE SHIPPING LOWER 48
ON SALE NOW!
  • Wall-Hung Condensing Combination Boiler
  • Quietest Boiler on the Market
  • Up to 96% Efficiency
  • Environmentally Friendly - 80% less NOx and 90% less CO
  • Can be used with Natural Gas or Liquid Propane
  • Output from 112,601 BTU's to 32,804 BTU's
  • Input from 126,376 BTU's to 37,192 BTU's
  • Condensing does occur in DHW mode
  • Fully modulating fan and calibrated venturi
  • Gas valve has 1:1 gas/air mechanical control
  • Sealed combustion
  • Expansion Tank
  • Fully electronic 3 way motorized valve
  • Double CPU microprocessor for highest efficiency optimization
  • Fully automatic self diagnostics
  • Anti-freeze protection (Unit will operate at low fire until 30° C - 86° F loop temperature is achieved)
  • Pump protection (10 second operation if system static for 24 hours)
  • 3 way valve protection (electronic communication and operation to main circuit board if static for 24 hours)
  • Complete valve kit included
Sales limited to Trade Only customers, who are aware of local building codes.

Part No. BTU Description Price Buy it Now
Heat Only ↓
LM-HT 1.330 37,192 - 126,376 Mascot HT 1.330 (natural gas)
(heat only)
FREE SHIPPING LOWER 48
$4931.00 $2995.49
LM-HT 1.450 52,058 - 153,546 Mascot HT 1.450 (natural gas)
(heat only)
FREE SHIPPING LOWER 48
$7412.00 $4883.93
LM-HT 1.650 69,326 - 221,789 Mascot HT 1.650 (natural gas)
(heat only)
FREE SHIPPING LOWER 48
$8332.00 $5471.81
Accessories ↓
LM-714072611 Siemens QAA73

Needed for Propane conversion


$373.00 $279.75
LM-5676560 330/1.31 #140 Gas Valve
$435.67 $326.75
LM-714017777 DHW Tank Sensor Kit
$58.00 $50.75
LM-714076810 Indirect Tank Sensor
$36.00 $31.50
LM-714095310 24 Volt Relay Card
$46.00 $40.25
LM-714072811 Outdoor Air Temperature Sensor QAC34
$66.00 $57.75
LM-714072511 Interface Card to Adapt QAA73
$98.00 $85.75
LM-5674690 PCB, Siemens LMU 34 120V
$569.21 $426.91
LM-714096210 Connection Kit
$880.00 $660.00
LM-714096110 Multi-Header Assembly
$1146.00 $859.50
CA003300 Manifold Adapter Kit Threaded
$127.00 $95.25
LM-714096410 Manifold Adapter Kit Weld Connections
$90.00 $78.75
LM-5676610 Anstos Connector
$56.56 $49.49
LM-5676580 Fan HT
$623.75 $467.81
LM-5676540 3 Way Valve Motor
$202.98 $152.24
LM-600760 DHW Paddle Assembly
$38.89 $34.03
Venting Parts ↓
LM-714088610 Coaxial .5 meter extension for HT 1.45, 1.65
$59.00 $51.63
LM-714088710 Coaxial 90 bend for HT 1.45, 1.65
$67.00 $58.63
LM-714059712 Coaxial 90° bend for HT 33, 1.33
$55.00 $48.13
LM-714088810 Coaxial 45 bend for HT 1.45, 1.65
$67.00 $58.63
LM-714059812 Coaxial 45° bend for HT 33, 1.33
$66.00 $57.75
LM-714088910 Coaxial terminal for HT 1.45, 1.65
$146.00 $109.50
LM-714059511 Coaxial 1 meter extension for HT 33, 1.33
$93.00 $81.38
LM-714088510 Coaxial 1 meter extension for HT 1.45, 1.65
$100.00 $87.50
LM-714059611 Coaxial Horizontal Termainal for HT 33, 1.33
$127.00 $95.25
LM-714093510 Coaxial vertical terminal for all HTs (330/1,339 require LM-714093910 adapter)
$595.00 $446.25
LM-714093910 Condensing flue adapter for vertical vent for HT 33, 1.33
$52.00 $45.50
LM-714017710 Interior Wall Plate
$22.00 $19.25
LM-714093610 Flat Roof Jack
$139.00 $104.25
LM-714036610 Pitched Roof Jack
$103.00 $90.13
Dual Flue Venting Parts ↓
LM-714089010 Splitter Kit (commercial)
$65.00 $56.88
LM-714059112 Splitter Kit (residential)
$76.00 $66.50
LM-714059310 Dual flue 45 bend for HT (3") PP
$48.00 $42.00
LM-714059210 Dual Flue 90 bend for HT (3") PP
$48.00 $42.00
LM-714059410 Dual flue 1 Metre tube for HT (PP-80mm)
$50.00 $43.75
LM-714059910 Dual flue .5 Metre tube for HT (PP-80)
$31.00 $27.13
LM-714096510 ABS-PVC vent adapter
$91.00 $79.63
LM-714016969 Two-Pipe ABS/PVC Adapter Kit-includes Two 90's (PP-80mm) Two 1 metre extension (PP-80mm) Two 1/2 metre extension (PP-80mm) Four ABS PVC vent adapters Two end caps
$672.00 $504.00
LM-714050410 Exterior Wall Plate
$55.00 $48.13
LM-714018510 Interior Wall Plate for HT 1.45, 1.65
$13.00 $11.38
LM-714010410 Single End Cap
$26.00 $22.75
↓   Misc Parts   ↓
LM-5112530 Spring Clip
$6.60 $5.78
LM-5113650 Clip-HeatingEx.-Fixing
$5.77 $5.05
LM-5402010 O-Ring 22, 22X2, 62
$4.15 $3.63
LM-5402080 Washer - Sealing
$4.15 $3.63
LM-5402830 NTC Sensor Gasket
$4.15 $3.63
LM-5403130 O-Ring 22x3 EPDM
$4.15 $3.63
LM-5404520 Gasket, Plate Heat Exchanger
$4.15 $3.63
LM-5404650 Washer - Sealing G3/4
$4.15 $3.63
LM-5405370 O-Ring 23, 47X2, 62 E.P. -49-
$4.15 $3.63
LM-5406360 O-Ring - Air Vent
$4.15 $3.63
LM-5409110 Flame Sensing Electrode Gasket
$4.15 $3.63
LM-5409130 Fan Connection Gasket
$10.33 $9.04
LM-5652030 Draining Tap
$23.74 $20.77
LM-5652190 Heat Exchanger-DHW (22 plates) Alfa Laval
$444.13 $333.10
LM-5660100 Pump - UP 15-62 Grundfos
$449.24 $336.93
LM-5663350 Pipe Assembly - Return/Pump
$47.56 $41.62
LM-5669870 Connections, Vacuum Pack for HT 133
$605.19 $453.89
LM-5669900 Hydronic Safety Valve Assembly
$95.20 $83.30
LM-5669930 Connections, Vacuum Pack for HT 330
$356.90 $267.68
LM-5676600 Pipe - Exchanger/Heating Flow
$89.23 $78.08
LM-607290 Air Vent, Automatic
$29.47 $25.79
LM-617140 Filter Venturi and Paddle Assembly - 12L
$64.49 $56.43
LM-8380850 Clip-Fixing-Bypass
$5.10 $4.46
LM-8422830 Electrode - Ignition
$41.25 $36.09
LM-8422840 Electrode - Ionization
$25.61 $22.41
LM-8434550 Selector Switch, Gottak 4 Pos.
$16.72 $14.63
LM-8434840 NTC Sensor
$31.96 $27.97
LM-8511140 Lead-Ignition Electrode
$19.26 $16.85
LM-9951020 Gauge, Pressure
$84.87 $74.26
LM-9951070 Thermostat - Limit
$61.59 $53.89