ProLine 4300-OF

PRO-Line Demand Heater Module

PRO-Line Demand Heater Module

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Item # ProLine 5300-LP, PRO-Line Demand Heater Module

Industrial and commercial instantaneous demand-type water heaters are available in a wide range of capacities and configurations from Spartan Manufacturing Corporation. All heaters are custom specified to meet the requirements of each specific application and are manufactured using standard heating components from our hot pressure cleaning systems.

Instantaneous demand water heaters have no water storage capacity. Demand heaters heat the water instantaneously and continuously as the water flows through the heater coil. The demand heater is automatically turned on and off in response to water flow. Demand heaters are ideally suited for applications requiring large volumes of heated water that is impractical to store in the tank of a storage type heater or for situations requiring instant hot water on demand without the excess energy cost of maintaining preheated water in storage.

Standard Features

  • Multiple choices of energy sources – natural gas, LP gas, kerosene, heating oil, diesel fuel and electrical power.
  • Capacities from 3 GPM – 5 GPM (11.4 LPM – 18.9 LPM)
  • Temperature rises up to 250 ºF.
  • Energy rating up to 1,000,000 BTU/Hr.
  • Handle water pressures from 20 PSI to 4000 PSI (1.4 BAR – 275.7 BAR)
  • Stationary and mobile configurations.
  • Automatic controls for starting and stopping the heater.
  • Thermostat control.
  • Corrosion resistant carbon steel or stainless steel heat exchangers.
  • Special control interfacing.
  • Vertical heat exchangers.
  • Heavy-duty industrial design for long life.
  • For electric heated demand heater modules see Custom Designed Cleaning Systems

Options Available:

  • Stainless Steel Heating Coils
  • Jet Fuel Burners
  • Special Exhaust Equipment for Negative Pressure Environments
  • See Product Options for more information.


Flow Rate

15.140 LPM

Maximum Pressure

3000 PSI
206.850 BAR

Voltage / Phase

120-230 V / 1 Ph

Engine Type

Oil Fired

Cold or Hot/Steam

Hot Water/Steam

Heating Fuel or Energy Source

Kerosene/Diesel or Oil Fired

Major Options

  • Stainless Steel Coils
  • Non USA Standard Voltages/Hertz


Heater Modules Available in Optional 3 Phase Configuration - Contact SMC


Certificate of Limited Warranty