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Laars Mini Therm Boilers


Category I natural draft boiler
Natural Gas or Liquid Propane

FREE SHIPPING LOWER 48 to nearest commercial dock
*on boilers only, not accessories

The MiniTherm residential boilers are Category I (non-positive vent pressure, non-condensing), natural draft appliances. The heat exchanger combines the heat transfer efficiency of integral copper finned tubes with the mass of two cast-iron wet walls surrounding the combustion chamber. The units are available in a range of sizes to suit almost every residential and light commercial heating load while providing operational efficiencies of up to 84.5% AFUE.


When commissioning a boiler you will need an electrician and gas technician with combustion analyzer and/or manometer to properly set up your new appliance.

Documentation: Laars_Mini-Therm Manual.pdf


Part No. Qty Unit Price
Spark Ignition ↓
JVS050NDI 50 MBTU/H Natural Gas Spark Ignition w/out pump
FREE SHIPPING (*Continental US)
$1587.56
JVS050PDI 50 MBTU/H Propane Spark Ignition w/out pump
FREE SHIPPING (*Continental US)
$1587.56
JVS075NDI 75 MBTU/H Natural Gas Spark Ignition w/out pump
FREE SHIPPING (*Continental US)
$1674.75
JVS075PDI 75 MBTU/H Propane Spark Ignition w/out pump
FREE SHIPPING (*Continental US)
$1674.75
JVS100NDI 100 MBTU/H Natural Gas Spark Ignition w/out pump
FREE SHIPPING (*Continental US)
$1814.25
JVS100PDI 100 MBTU/H Propane Spark Ignition w/out pump
FREE SHIPPING (*Continental US)
$1814.25
JVS125NDI 125 MBTU/H Natural Gas Spark Ignition w/out pump
FREE SHIPPING (*Continental US)
$1871.06
JVS125PDI 125 MBTU/H Propane Spark Ignition w/out pump
FREE SHIPPING (*Continental US)
$1871.06
JVS160NDI 160 MBTU/H Natural Gas Spark Ignition w/out pump
FREE SHIPPING (*Continental US)
$1972.88
JVS160PDI 160 MBTU/H Propane Spark Ignition w/out pump
FREE SHIPPING (*Continental US)
$1972.88
JVS225NDI 225 MBTU/H Natural Gas Spark Ignition w/out pump
FREE SHIPPING (*Continental US)
$2323.88
JVS225PDI 225 MBTU/H Propane Spark Ignition w/out pump
FREE SHIPPING (*Continental US)
$2323.88
Spark Ignition with Pump ↓
JVS050NDJ 50 MBTU/H Natural Gas Spark Ignition with pump
FREE SHIPPING (*Continental US)
$1716.94
JVS050PDJ 50 MBTU/H Propane Spark Ignition with pump
FREE SHIPPING (*Continental US)
$1716.94
JVS075NDJ 75 MBTU/H Natural Gas Spark Ignition with pump
FREE SHIPPING (*Continental US)
$1804.13
JVS075PDJ 75 MBTU/H Propane Spark Ignition with pump
FREE SHIPPING (*Continental US)
$1804.13
JVS100NDJ 100 MBTU/H Natural Gas Spark Ignition with pump
FREE SHIPPING (*Continental US)
$1943.63
JVS100PDJ 100 MBTU/H Propane Spark Ignition with pump
FREE SHIPPING (*Continental US)
$1943.63
JVS125NDJ 125 MBTU/H Natural Gas Spark Ignition with pump
FREE SHIPPING (*Continental US)
$2000.44
JVS125PDJ 125 MBTU/H Propane Spark Ignition with pump
FREE SHIPPING (*Continental US)
$2000.44
Hot Surface Pilot with Fan ↓
JVH050NCS 50 MBTU/H Natural Gas Fan-Assisted Hot Surface Ignition
FREE SHIPPING (*Continental US)
$1730.44
JVH050PCS 50 MBTU/H Propane Fan-Assisted Hot Surface Ignition
FREE SHIPPING (*Continental US)
$1730.44
JVH075NCS 75 MBTU/H Natural Gas Fan-Assisted Hot Surface Ignition
FREE SHIPPING (*Continental US)
$1822.13
JVH075PCS 75 MBTU/H Propane Fan-Assisted Hot Surface Ignition
FREE SHIPPING (*Continental US)
$1822.13
JVH100NCS 100 MBTU/H Natural Gas Fan-Assisted Hot Surface Ignition
FREE SHIPPING (*Continental US)
$1948.13
JVH100PCS 100 MBTU/H Propane Fan-Assisted Hot Surface Ignition
FREE SHIPPING (*Continental US)
$1948.13
JVH125NCS 125 MBTU/H Natural Gas Fan-Assisted Hot Surface Ignition
FREE SHIPPING (*Continental US)
$2049.38
JVH125PCS 125 MBTU/H Propane Fan-Assisted Hot Surface Ignition
FREE SHIPPING (*Continental US)
$2049.38
JVH160NCS 160 MBTU/H Natural Gas Fan-Assisted Hot Surface Ignition
FREE SHIPPING (*Continental US)
$2217.56
JVH160PCS 160 MBTU/H Propane Fan-Assisted Hot Surface Ignition
FREE SHIPPING (*Continental US)
$2217.56
JVH225NCS 225 MBTU/H Natural Gas Fan-Assisted Hot Surface Ignition
FREE SHIPPING (*Continental US)
$2589.38
JVH225PCS 225 MBTU/H Propane Fan-Assisted Hot Surface Ignition
FREE SHIPPING (*Continental US)
$2589.38
Miscellaneous Parts ↓
20020500 Power Venter for up to 100' vent run (boiler size 50-100)
FREE SHIPPING (*Continental US)
$895.34
20020601 Power Venter for up to 100' vent run (boiler size 125-160)
FREE SHIPPING (*Continental US)
$969.00
20404606 Orifice Plate, Natural Gas $2.83
20411205 Burner cover weldment w/louvers & air diverter for JVH 160 $35.00
E2074505 Switch, Air Pressure 5001-10,000' for JVH 125-160 $35.00
F0024300 Hex head screw $0.48
L0050300 Gas Orifice, Natural, 8,000-10,000' JVH 50-125, 5,001-8,000' JVH 160-225 $2.03
L0055900 Air Shutter $2.88
R0060600 Gauge, Temp/Pres 70-250F, 0-90 PSI $48.98
R0384800 Gas Valve Combo HSI On/Off 1/2 x 3/4, LP $224.38
R0402011 Heat Exchanger for JVH160 $1041.68
R2000201 JVT50 LP to Natural Gas Conversion Kit (Altitude 0-2000') $70.32
R2000213 JVT125 LP to Natural Gas Conversion Kit (Altitude 0-2000') $73.19
R2000413 JVS125 LP to Natural Gas Conversion Kit (Altitude 0-2000') $45.59
R2000510 JVH125 Natural Gas to LP Conversion Kit (Altitude 0-5000') $66.27
R2000215 JVT125 LP to Natural Gas Conversion Kit (Altitude 5,000--8,000') $93.80

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