PHP Coolant Heater Vehicle Kit PH51W – 5kW 12V Diesel

Coolant Heater Kit, Model PH51, 5 kW 12V, Diesel, comes with 7 day PROGRAMABLE timer (Internal water pump)


Original price was: CA$1,095.00.Current price is: CA$879.20.

2 Year Warranty on all heaters

Availability: Ships within 24 hours from Ontario, Canada 🇨🇦  and Texas, United States 🇺🇸

Looking for Wholesale Pricing? Please Call 877-508-3900 or Register to become a dealer!

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The PH51W water heaters are designed to be used as auxiliary engine heaters for trucks, RVs, boats, construction and farm equipment. In extreme cold temperatures, the heaters will keep the engine warm and also eliminate cold engine starting problems without the necessity of engines idling or frequent startups.In addition, the heater will provide heat to keep the operator cabin or sleeper berth warm and comfortable for a fraction of the cost in comparison to engine idling.

Compact design, low volume, easy maintenance, safety protection, auto self diagnosis, 7-day timer, low exhaust emission and low operating cost make this heater ideal to use in trucks, boats, farm and construction equipment.

Coolant Heater Kit, Model PH51, 5kW, 12V, Diesel, 7 Day Programmable Timer

Kit Includes: 

P51W Coolant Heater Performance Specifications:

Heating Medium Water / Ethylene Glycol  Mixture
Fuel Diesel
Heating output High – 5.0 KW (17,060 BTU)

Low – 2.2 KW (7,500 BTU)

Fuel Consumption High – 0.61 L/hr  (0.16 US Gal/hr)

Low – 0.25 L/hr   (0.07 US Gal/hr)

Rated Voltage 12 VDC or 24 VDC
Power Consumption


High – 53W

Low – 27 W

Startup – 120 W

Operating Voltage Range Minimum Voltage: 10.2 V or 21V

Under-voltage protection will shutdown the units when the voltage drops to this value

Maximum Voltage: 16 V or 32V

Over-voltage protection will shutdown the units when the voltage reaches this value

Allowable Operating Pressure 1 bar (15 PSI)
Water Capacity (Heater) 0.175 L (0.046 US Gal)
Water Through Capacity 850-1000 L/h (225-265 US Gal/h)

At 10 Kpa Operational Pressure

Minimum Water Through-put 240 L/h (63.50 US Gal/h)
Allowable Ambient Temperature -40°C to 80°C

-40°F to 176°F

Dry Weight 3.1 kg (6.8 lbs)

Above Specifications (± 10%)



Additional information

Weight 10 kg
Dimensions 60 × 38 × 20 cm


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