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Laars
OEM Replacement Parts
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Laars Mini-Therm II JVi (JVH) Boiler
Current Residential Models: 50 MBH to 225 MBH
Please call (407) 351-9121 or send a message for applicability, availability and pricing. Before contacting CSI, please write down your unit's complete model and serial number to help us identify the correct OEM replacement part(s) you require. An asterisk (*) indicates a part we normally keep on hand. Other OEM parts available by special order. Please read our Terms of Sale notice carefully before placing an order.
 
JVI Owner's Manual
Mini-Combo id Owner's Manual
 
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Please note: The Mini-Therm JVi is used in conjunction with the Mini-Combo id for a combined space and water heating system.
| Pilot System | Gas System | Electrical System | Water System | Firebox | Mini-Combo id |

Pilot System
W2001800
W2001900
Natural Gas Pilot Assembly with Leads (Hot Surface Ignition)
Propane Gas Pilot Assembly with Leads (Hot Surface Ignition)
R0037000 Aluminum Pilot Tubing*
L0056500 Main Gas Burner with Pilot Bracket
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Gas System
R0384700
R0384800
Gas Valve (Natural Gas) (Hot Surface)
Gas Valve (Propane Gas) (Hot Surface)
L0032200
L0050700
L0032900
Gas Orifice (Natural Gas) (50-125)
Gas Orifice (Natural Gas) (160-225)
Gas Orifice (Propane Gas) (50-225)
L0052601
L0052602
L0052603
L0052604
L0052605
L0052606
Gas Manifold 50 
Gas Manifold 75
Gas Manifold 100
Gas Manifold 125
Gas Manifold 160
Gas Manifold 225
L0052500 Main Gas Burner*
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Electrical System
A2000200 Induced Draft Blower & Motor Assembly
E2074501
E2074502
E2074503
Air Pressure Switch 50-100
Air Pressure Switch 125-160
Air Pressure Switch 225
R0021200
R0061300
E0121000
E2103200
R0384900
E0086100
E0098500
Lockout Relay DPNO 24V
High-Limit Switch
Blocked Vent Safety Switch
Flame Roll-Out Safety Switch
2-Amp Fuse Replacement Kit (5-Pack)
Terminal Strip
Transformer*
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Water System
20036601
20036602
20036603
20036604
20036605
20036606
Heat Exchanger for JVS/JVT-50
Heat Exchanger for JVS/JVT-75
Heat Exchanger for JVS/JVT-100
Heat Exchanger for JVS/JVT-125
Heat Exchanger for JVS/JVT-160
Heat Exchanger for JVS/JVT-225
10485301
10485302
10485303
10485304
10485305
10485306
Heat Exchanger Baffle for JVS/JVT-50
Heat Exchanger Baffle for JVS/JVT-75
Heat Exchanger Baffle for JVS/JVT-100
Heat Exchanger Baffle for JVS/JVT-125
Heat Exchanger Baffle for JVS/JVT-160
Heat Exchanger Baffle for JVS/JVT-225
A0000100
R0061400
Temperature & Pressure Gauge
Pressure Relief Valve (30PSI)
RE2058300
E0025900
Nickel-Plated Immersion Well
Non-Plated Immersion Well
R0060500 Drain Valve ½" NPT
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Firebox
20036601
20036602
20036603
20036604
20036605
20036606
Heat Exchanger 50
Heat Exchanger 75
Heat Exchanger 100
Heat Exchanger 125
Heat Exchanger 160
Heat Exchanger 225
10485301
10485302
10485303
10485304
10485305
10485306
Heat Exchanger Baffle 50
Heat Exchanger Baffle 75
Heat Exchanger Baffle 100
Heat Exchanger Baffle 125
Heat Exchanger Baffle 160
Heat Exchanger Baffle 225
R0060600
R0061400
Temperature & Pressure Gauge
Pressure Relief Valve (30PSI)
RE2058300
E0025900
Nickel-Plated Immersion Well
Non-Plated Immersion Well
R0060500 Drain Valve (½" NPT)
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Mini-Combo id Components
E2020500
E2103100
A2085900
Electronic Temperature Control
Temperature Sensor
Immersion Well ¾"
A2000400
A2000600
A2085400
Pressure & Temperature Gauge
Temperature Gauge
Pressure & Temperature Relief Valve
A0066500 Circulator Pump
A2085301
A2085300
30-Gallon Storage Tank with Double-Walled Heat Exchanger
30-Gallon Storage Tank with Single-Walled Heat Exchanger
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Please call (407) 351-9121 or send a message for applicability, availability and pricing. Before contacting CSI, please write down your unit's complete model and serial number to help us identify the correct OEM replacement part(s) you require. An asterisk (*) indicates a part we normally keep on hand. Other OEM parts available by special order. Please read our Terms of Sale notice carefully before placing an order.
 
JVI Owner's Manual
Mini-Combo id Owner's Manual
 
Return to the Parts Menu
Please note: The Mini-Therm JVi is used in conjunction with the Mini-Combo id for a combined space and water heating system.
Specifications subject to change without notice.
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