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DBC H & HP M2 Series Horizon
HW 60-130 Series HW-M2 Series
  • H & HP M2 Series

    Heatmaker H-Series H & HP Repair Parts
    Click on one of these pictures below to find your parts

  • Trianco Heatmaker Heating System Replacement Parts

    Trianco Heatmaker heating systems are built for performance was the first American made high efficiency Boiler. The HWM2 was an invention by the Boston Gas Company in 1982. If your Trianco Heatmaker system is operating unreliably or has stopped working completely, you can likely restore it with parts from our extensive inventory. Whether you have an Endurance HWM2 boiler, Newport oil series boiler, Horizon HC oil boiler or virtually any other Heatmaker model, you can find the Trianco boiler parts that you are looking for in stock and ready to ship.

    Our selection of Trianco Heatmaker replacement parts includes everything you need, from flow sensors and heat exchangers to tankless water coils and blower assemblies. You can search our website by part number or part name. If you have any questions about Trianco Heatmaker parts, please contact us to speak with one of our Heatmaker boiler parts experts. Unfortunately, the HWM2 bottom tank is no longer available and you will have to replace your heater.

    Let Us Help You Find the Right Part for Your Project. Contact Us Today.

    Call us at (800) 536-1582, email [email protected] or live chat with a member of our team here on our website to begin exploring options for Trianco Heatmaker heating system replacement parts.

    Our customer service team is available Monday through Friday, 8 am – 4 pm EST.



    DBC Manual


    (Acrobat Reader Required)

    Pre Mark II

    Mark II


    H-Series Manual


    (Acrobat Reader Required)
  • Horizon

    Heatmaker Horizon HC



    Horizon Manual


    (Acrobat Reader Required)
  • HW 60-130 Series

    Heatmaker HW 60-130 Repair Parts
    Click on this picture below to find your parts







    H-Series Manual 186-XXXX to 188-XXXX


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    H-Series Manual 188-XXXX and Newer


    (Acrobat Reader Required)
  • HW-M2 Series

    Heatmaker HW-M2 Repair Parts
    Click on this picture below to find your parts





    H-Series Manual


    (Acrobat Reader Required)
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    LAARS 2400-386 Pump LAARS 2400-556 Flow Sensor Teledyne Laars 2400-439 Control, Temp
    LAARS 2400-386 Pump LAARS 2400-556 Flow Sensor LAARS 2400-439
    Teledyne Laars 2400-441 Ignition Control, Endurance LAARS E2306700 Encapsulated Relay Module, 500-2000 Teledyne Laars EDP0110 EDP0175 EDP110 EDP175 EBP0110 EBP0175 EBP110 EBP175 EDN <span style='color: red; font-weight:bold'> 2400-530 </span>  <span style='color: green; font-weight:bold'> Air Vent, manual (coin vent), Rheos+, 1200, 1600, 2000, 2400 </span>
    Teledyne Laars 2400-441 Ignition Control, Endurance LAARS E2306700 Encapsulated Relay Module, 500-2000 TELEDYNE LAARS 2400-530 Air Vent, manual (coin vent), Rheos+, 1200, 1600, 2000, 2400
    Teledyne Laars EDP0110 EDP0175 EBP0175 RHCH 1200 RHCH 1600 RHCH 2000 <span style='color: red; font-weight:bold'> R2006100 </span>  <span style='color: green; font-weight:bold'> Relay, DPDT, 24V Coil, Rheos and Rheos+, 1200, 1600, 2000, 2400 </span> Image of Teledyne Laars 2400-526 Ignitor & Gasket 2400-539 Motor, Anti Condensing Valve, EBP
    TELEDYNE LAARS R2006100 Relay, DPDT, 24V Coil, Rheos and Rheos+, 1200, 1600, 2000, 2400 Ignitor with Gasket 2400-539 Motor, Anti Condensing Valve, EBP
    2400-570 Heat Exchanger, flat plate, DHW Teledyn Laars Endurance 2400-542 brass Flow Switch Teledyne Laars EBP0110 EBP0175 <span style='color: red; font-weight:bold'> 2400-153 </span>  <span style='color: green; font-weight:bold'> Field service kit, N/S Endurance </span>
    2400-570 Heat Exchanger, flat plate, DHW Laars 2400-542 Flow Switch Teledyne Laars 2400-153 Field service kit, N/S Endurance
    Teledyne Laars 2400-574 Pressure Gauge (0-75 psi) Teledyne Laars 2400-548 Gas Valve Teledyne Laars E0005502 Termination, Female
    Teledyne Laars 2400-574 Pressure Gauge (0-75 psi)
    Our Price: $162.16
    Sale Price: $107.84
    You save $54.32!
    Teledyne Laars 2400-574 Pressure Gauge (0-75 psi) Teledyne Laars 2400-548 Gas Valve
    This gas valve is for the Endurance EBP and EDP boilers, new style and old style.  A combination gas valve will work with both natural gas and liquid propane gas (LP) but both gas types must be set up by making adjustments to the air and gas mixtures utilizing a dual menometer and electronic combustion analyzer.  Parts4heating has several of these 2400-548 gas valves in stock and are ready to ship one to you today!
    Teledyne Laars E0005502 Termination, Female
    Teledyne Laars 10-548 Discharge Fitting, Enduance Teledyne Laars 2400-524 Blower Assy, Endurance Teledyne 2400-558 Control Board, Endurance EDP
    Teledyne Laars 10-548 Discharge Fitting, Enduance Teledyne Laars 2400-524 Blower Assy, Endurance Teledyne 2400-558 Control Board, Endurance EDP
    Teledyne Laars HW-M2-100N, <span style='color: red; font-weight:bold'> 2400-228 </span>  <span style='color: green; font-weight:bold'> Pressure Switch </span> Teledyne Laars EBP0110 EBP0175 EBP110 EBP175 EBP155 EBP175 <span style='color: red; font-weight:bold'> S2009300 </span>  <span style='color: green; font-weight:bold'> Gasket, Flow switch, Endurance </span> Teledyne Laars <span style='color: red; font-weight:bold'>2400-112 </span> <span style='color: green; font-weight:bold'> Relief Valve, 30psi ASME </span>
    Teledyne Laars 2400-228 Pressure Switch Teledyne Laars S2009300 Gasket, Flow switch, Endurance Teledyne Laars 2400-112 Relief Valve, 30psi ASME
    Teledyne Laars 2400-049 Control Box Cover 2400-592 Pump, Endurance Laars 2400-442 PWM Board, Endurance
    Teledyne Laars 2400-049 Control Box Cover 2400-592 Pump, Endurance Laars 2400-442 PWM Board, Endurance
    Laars 2400-448 Tranformer, Endurance Teledyne Laars  <span style='color: red; font-weight:bold'> 2400-528 </span>  <span style='color: green; font-weight:bold'> Gasket, for Ignitor </span> Laars 2400-316 Pressure Relief Valve, 50 PSI, SMB, Summit
    Teledyne Laars 2400-528 Gasket, for Ignitor
    Our Price: $21.12
    Sale Price: $13.40
    You save $7.72!
    Laars 2400-448 Tranformer, Endurance 2400-528 Gasket, for Ignitor

    The igniter is a “glow bar” type silicon carbide unit. It is
    energized whenever there is a call for heat and the red
    "IGNITER" light on the boiler control is lit. After the igniter is
    switched off and the boiler continues to run, the igniter functions
    as a flame sensor for the boiler control.
    If the ignitor fails and must be replaced, always install a new
    igniter gasket with the replacement igniter.
    CAUTION: Ignitor gets hot.
    Laars 2400-316 Pressure Relief Valve, 50 PSI, SMB, Summit
    Teledyne Laars 2400-586 Tank Assembly Laars R2028200 Sika Flow Switch Replacement Kit, new style Teledyne Laars EDP110 EDP175 EBP0110 <span style='color: red; font-weight:bold'> 2400-562 </span>  <span style='color: green; font-weight:bold'> Transformer </span>
    Teledyne Laars EDP110 EDP175 EBP0110 2400-562 Transformer
    Our Price: $299.80
    Sale Price: $133.45
    You save $166.35!
    Teledyne Laars 2400-586 Tank Assembly Laars R2028200 Sika Flow Switch Replacement Kit, new style Laars 2400-562 Transformer
    Laars 2400-446 Sensor Return, Endurance, New Style Laars 2400-142 Air Inlet Kit, Endurance Laars 2400-445 Sensor, Tank Supply Endurance, New Style
    Laars 2400-446 Sensor Return, Endurance, New Style Laars 2400-142 Air Inlet Kit, Endurance Laars 2400-445 Sensor, Tank Supply Endurance, New Style
    Laars 2400-538 Valve, Anti Condensing, EBP, o/s Laars R0560701 Rectifier Plug, Gas Valve, Serial Number after 5/25/07 Teledyne Laars 2400-443 Wiring Harness, EBP
    Teledyne Laars EBP0110 EBP0175 2400-443 Wiring Harness, EBP
    Our Price: $276.92
    Sale Price: $184.04
    You save $92.88!
    Laars 2400-538 Valve, Anti Condensing, EBP, o/s Laars R0560701 Rectifier Plug, Gas Valve, Serial Number after 5/25/07 Teledyne Laars 2400-443 Wiring Harness, EBP
    Laars 2400-550 Safety Limit Endurance 230 F Laars 2400-512 Combustion Chamber, Endurance EBP/EDP 175 Laars 2400-540 Gasket, Blower
    Laars 2400-512 Combustion Chamber, Endurance EBP/EDP175
    Our Price: $4,784.92
    Sale Price: $3,038.04
    You save $1,746.88!
    Laars 2400-550 Safety Limit Endurance 230 F Laars 2400-512 Combustion Chamber, Endurance EBP/EDP 175 Laars 2400-540 Gasket, Blower
    2400-029 Thermostat & O-ring for Union, EDP 2400-149 Field Service Kit, EDP/ EDN Laars 40-310 Wire Harness, EDP Endurance
    2400-029 Thermostat & O-ring for Union, EDP 2400-149 Field Service Kit, EDP/ EDN Laars 40-310 Wire Harness, EDP Endurance
    Teledyne Laars, 2400-516, Burner 110, EBP,EDP,EDN, gaskets included Laars R70-216 Float Vent, 3/4" NPT Laars 2400-030 Thermostatic Union Assembly
    Teledyne Laars, 2400-516, Burner 110, EBP,EDP,EDN, gaskets included Laars R70-216 Float Vent, 3/4" NPT

    Neotherm Rev. 1
    Laars 2400-030 Thermostatic Union Assembly