User Manual
The SKYRC engine heater uses technology similar to that used by Formula 1, Indy Car 
and  NASCAR  Teams!  It  will  properly  pre-heat  your  engine  to  60-70°C  in  10  minutes 
based on ambient temperature. 
SKYRC engine heater will pre-heat all the critical parts of your nitro engine, giving you a 
minimal of stress and wear on the engine. It help relieve the stress on the crank, con-rod, 
piston and sleeve during warm-up. It also give you a very easy and smooth engine start, 
with no stress on your starterbox. Fuel consumption is much less, as you do not have to 
spend time warming up and adjusting your engine. A pre-heatet glow-plug will increase 
the life of your plug. It is also perfect for break-in, as it reduces the "pinch" on your new 
engine.  You  will  experience  that  engine  pre-heating  is  a  must.  Most  importantly,  it  will 
quickly pay for itself by increasing engine life and performance!
INSTRUCTION MANUAL
INTRODUCTION
ENGINE HEATER
LED Indicator
Power ON/OFF
Button
MCU control heating time and heating power for maximum safety.
Safety timer: turn off power around 10 minutes automatically
Built-in temperature sensor: to control the output power of the heater
LED indicator for status of engine heater.
12V DC source with low voltage cutoff.
Fireproof and heat resistant adjustable cover.
Fits all .19-.26 RC nitro engines.
Very small, lightweight and compact for quick and easy storage.
It's designed to transfer heat effectively and efficiently.
Access port on top allows you to start and monitor your engines temperatures without 
having to take the heater off.
FEATURES
HOW TO USE
Place the heater around your engine.
Connect  the  power  cord to  DC Source:  Can be  operated  from any  12V DC  power  source, 
including 3S LiPo battery or 12V Lead Acid battery.
Push power button. The LED turn red and the engine heater will starting heat the engine up to 
10 minute and  the engine is pre-heated. If the temperature is not reach the optimal temperature 
range, push the power button for another 10 minutes heating. 
You can turn off the heater during heating process, push and hold power button for more than 3 
seconds, the heater will stop.
Disconnect  the DC source and take it off the engine. Caution, the heater and engine are HOT.  
Now you are ready to start your pre-heated engine. 
1. 
2. 
3. 
4.
NEVER HAVE POWER ON THE HEATER, IF IT IS NOT MOUNTED ON THE ENGINE. 
IT CAN OVERHEAT. 
Warning:
SAFETY NOTES 
Before  using  this  product,  make  sure  that  the  heat  element/cord/plug  and  switch  are  in  perfect 
conditions. If damaged do NOT use it. 
Do not pull on the cord. Please do not bend or twist the cord. 
NEVER leave the heater on, if you are not present. 
Always unplug the heater before starting your engine. 
Never refuel your car with he heater connected. 
Leave the heater in a safe area. After use, the heater is still very hot. 
This is an electrical product; it can result in dangerous shock and fire. Please use this product with 
care. 
SPECIFICATION
Input Voltage
Heating Power
Heating Time
Low Voltage Cutoff
Net weight
Dimension
12Volt DC
90Watt
Around 10 minutes
9-10Volt
65g
Diameter≈63mm Height≈50mm
LED indicator
Red LED stays on
Red LED blinking
Heating
Low Voltage
5.
SK-600066
7504-0439-02

