Significance

• Portable oil-filled radiators and heaters can move from one room to another to heat that area. Saving energy not only helps keep money in your wallet but also helps to conserve natural resources. Products that can provide safety, comfort and energy reductions are a green product. This comparison includes the portable models of each heater that are approximately the same size.
  
  

Similarities

• Both the Hydrosil and Delonghi heaters are portable. The Delonghi is oil-filled whereas the Hydrosil model is silicon oil-filled. Each is approved for use around small children and operates with a thermostat to control heat output. Both units are useful in keeping the rooms that you occupy the most at a warmer temperature while allowing other rooms in your home to be kept at a lower temperature to save on heating costs.
  
  

Differences

• The Delonghi heater has a thermostat that senses the room temperature and turns on to provide more heat as needed. Therefore, the heater is either on 100 percent or off 100 percent. It does have three separate settings for wattage and a timer so that you can use less energy when you are not home. The Hydrosil thermostat controls temperature with a one-half of a degree variance and turns on for extra heat at a fraction of full power automatically. Only the exact amount of proportional power is used on an as-needed basis to micromanage your power usage.
  
  

Benefits

• The process of operation on the Hydrosil model never allows the silicon oil to cool off because it turns on more often. It takes less electricity to use partial power of 25 to 75 percent to keep the oil warm and provide a constant temperature than for a system to cool several degrees and then reheat the oil. This proportional technology greatly increases energy savings while warming a room with lower wattage to maintain your comfortable temperature.
  
  

Considerations

• The Hydrosil heater costs about three times the amount of the Delonghi heater. The Hydrosil model comes with a lifetime guarantee and the Delonghi heaters carry a one-year warranty. A Hydrosil heater is a notable Energy Star efficient appliance but the Delonghi heater is not. Hydrosil also boasts of up to a 50 percent energy savings in heating your home while Delonghi focuses on comfort, safety and value.