The Deuce is customizable to run at either 800 or 1600watts with a flip of a switch. The addition of the toggle switch makes it the perfect heater for twin engine aircraft that require two heaters to run simultaneously. If you are buying more than one unit, the 2nd one will be sold at wholesale. You must order by phone if you need a customized unit and to get the discount for the second unit. Includes; 1- Deuce Heater, 2- High Temperature Hoses, 4- Sponges and a Duffel Bag for convenient storage Purchased by Nasa and THE WEATHER CHANNELAircraft owners have long been familiar with the AeroTherm Engine Pre-Heater, but now theres a new and improved model. Its the AeroTherm Deuce, doing double the work, it has double the airflow and heating power of the original model.The AeroTherm makes it easy to keep your airplanes engine warm in the winter. Instead of blasting extreme heat into the engine compartment like some heaters, the AeroTherm evenly and consistently heats all parts of the engine using the same principal as your home furnace.Rather than using propane (and the accompanying tanks to be hauled around and refilled), The Deuce uses two 800 watt heating elements. Its easy-to-set thermostat maintains the desired temperature automatically. The Deuce can be kept plugged in all winter, keeping the engine warm, or it can be used as a traditional preheater. The Deuce consists of very durable components; a 40, 000-hour high output CFM fan from Germany, a 100, 000-cycle thermostat and a back-up reset thermostat. All components are modular and easy to replace.When its plugged in, the AeroTherm Deuce supplies 6500 BTUs of heat at 210F to the engine compartment. It then draws the same heat out of the compartment and back through the heater, until the desired temperature is reached. It is energy-efficient and can be operated for less than a dollar a day (see FAQ for electric specs.)When used as a preheater, the engine will be warm enough to start in about 90 minutes. Or, it will heat completely (including oil) in three hours at 0F outside temperature.Weighing just 11 lbs., the AeroTherm Deuce comes with two hoses, a nylon suspension band that allows the unit to hang from the prop of your aircraft, and four sponges to seal the engine intakes. Its portable enough to take with you.According to an article in Kitplanes Magazine the best way to heat an airplane engine is in a heated hangar. With that in mind, AeroTherm works on that principle. Blasting extreme heat into your engine compartment may start your engine, but since the engine case, crank shaft and cylinders are made up of three different metals that heat up at three different rates, this may cause engine damage to occur. You will find our continuous recirculating heat covers the engine compartment evenly, including the oil. Try it! If youre not satisfied, send it back for a complete refund.Please note due to the various country-specific socket standards within the EU, the 230v ships pre-wired for 230v but does not include a plug.It is the consumers responsibility to purchase and install the appropriate plug for hisher country. Failure to do so voids the warranty affiliated with this product.Still have questions? Give us a call, we love talking to you about our products.