Load
See the Propex HS2000 LPG Heater connection points and wiring example. Open the diagram in Crimp to add your equipment and plan the cables between them.
Open this example as a new project. Use your own parts and cable lengths to make the plan yours.
Use the diagram as a starting point for your installation. Replace the example equipment and cable lengths with your own, and check the connections against your exact model's instructions.
3.3 ft one way
12 V system
Sized against ABYC E-11. The design current is the part's continuous draw. The length is one way; voltage drop includes an equal-length return.
The editable example uses 3.048 m (10 ft) runs unless a shorter run is stated. Metric overviews round these to 3 m. Adapt the parts and lengths to your installation before choosing cable and protection.
Retain supplied 5 A fuse and original power/thermostat loom. Heater-end supply must stay 10–15 V; let the approximately three-minute purge complete before disconnecting. This short example does not replace the supplied loom specification. Manufacturer installation manual
Wiring diagram
Open this example in Crimp to use your own parts and cable lengths. Review the assumptions and installation notes as you adapt the circuit.
Retain supplied 5 A fuse and original power/thermostat loom. Heater-end supply must stay 10–15 V; let the approximately three-minute purge complete before disconnecting. This short example does not replace the supplied loom specification. Manufacturer installation manual
Edit this wiring exampleInstallation notes
Guidance for this model, with sources linked beside the relevant advice.
Verified against the manufacturer's documentation (rev. HS2000 from April 2018, issue 6, L180.121_0418), checked 2026-10-01. Manufacturer documentation →
This entry represents the 12 V LPG HS2000 with the April 2018-onward wiring arrangement. Propex's product specification lists 1.4 A operating current and 0.04 A standby. The 2 kW figure describes delivered heat, so it must not become a 2,000 W electrical load. Earlier controller and loom versions require their matching instructions.
The wiring spread, PDF page 3, identifies the two-core power cable at CN24: red positive and black negative. The thermostat uses its supplied six-core loom at CN26/CN27. The catalog's thermostat terminal is a connector reminder, not a pin that accepts battery positive. Keep the original plugs and follow the diagram when routing the control cable.
Retain the supplied 5 A fuse. The electrical instructions, PDF page 4, require 10–15 V at the heater. Measure that voltage during operation, including losses in both supply conductors. The manual does not give a universal replacement cable size or independent connector current rating; retain the supplied loom and obtain the appropriate extension specification when moving the supply farther away.
Stop heating at the thermostat and allow the approximately three-minute fan purge to finish. A master switch that immediately removes power prevents that purge. Standby consumption is separate from heating duty; isolate for storage only after shutdown has completed.
Use the manual's combustion-air, exhaust and warm-air routing together. Keep the specified 25 mm clearance, secure the flue system, and use the appropriate marine flue terminal for a boat installation. Have the gas installation checked by a competent installer, then confirm ignition, warm-air delivery, voltage at the heater and a complete shutdown purge. A successful electrical test alone does not verify the gas or exhaust installation.
Build it out
Add HS2000 to your diagram, then connect your batteries, chargers and loads. Crimp calculates cable sizes and checks the connections as you draw.
Every cable you draw there is sized against ABYC E-11, from the same tables as the reference on this page.
Technical reference
Check the model, ratings and connection points against your own unit before choosing installation hardware.
Check stud sizes, fuse type, run length and how warm the space gets against the gear you actually have before you order.
Catalog connection points, current direction and planning limits. Check the manufacturer's pinout and connector ratings before installation.
Red + / CN24
pos
positive · input
Black − / CN24
neg
negative · input
Thermostat loom
thermostat
signal · bidi
A dash means a current rating is not specified here.
Method & provenance
Manufacturer specifications describe the equipment. Crimp calculates cable results from the circuit and assumptions you enter.
From the maker
Manufacturer, model, ratings and which terminal does what come from the catalog. A newer revision, or the nameplate on the unit in your hand, can say something different — when it does, the nameplate wins.
ABYC E-11
Sized against ABYC E-11 — the US reference, and what Transport Canada accepts as an alternative to TP 1332 for pleasure craft under 24 m. The run length and the current above are what drive the result. Crimp doesn't know how warm your space gets; draw the cable inside an engine-bay zone on the canvas and it sizes for the heat.
Next step
Open this example as a new project. Add your equipment and cable lengths, then review the sizing and checks for your setup.