No silencer
All-in-one Diesel Air Heater: Heater power;
 Fuel type: Diesel; 
Rated voltage: 12V. Working temperature of heater:-104℉~+122℉/-40°C~+50°C. 
Working temperature of oil pump: -104℉~+104℉/-40°C~+40°C. 
Don't let cold winters leave you frozen and stop you from traveling, or camping in all four seasons. Get ready to stay warm with our diesel air heater.
.Feel Warmer in No Time: Feel warmth with every breath! The inhaled cool air is heated and becomes hotter via the aluminum combustion chamber. The diesel heater heats fast and increases the temperature of the car within 10 minutes; it can also pre-heat the engine and clear the window's frost in no time!
.Clear LCD & Convenient Remote Control: Starting up the bunk heater is so easy. You can start up the bunk heater or adjust the temperature 64℉-104℉/18℃-40℃ by remote control or LCD panel. 98 ft/30 m long control distance and timing system allow you to preheat the engine and the cab in advance so you can enjoy the warmth of home when you open the vehicle's door in winter.
.Diesel Vehicles & Indoor Use: As a warming companion for any diesel vehicle, the bunk heater is used widely to heat the interior of cars, RVs, caravans, trucks, ships, etc. Thanks to its compact and portable design, it is also an excellent choice while at home or shopping.