If you are thinking of purchasing a DeLonghi oil-filled heater so that you can use your gas burning furnace a little bit less than you are not going to be disappointed. We have heard from consumers who purchased one of these portable radiators and said that it performs so admirably that they barely use their furnace at all any more and their home is more comfy than it used to be.
One very great advantage of the DeLonghi is that it uses natural convection and radiant heating to warm both the air and the contents of the room it's in. The furnace depends on blowing hot, dry air throughout the house, but the contents -- furniture, walls, etc. -- suck up a lot of that heat, so the furnace has to run quite a while at first. The DeLonghi heats the air that flows past it, which in turn circulates itself, but rather as if you were holding your hand in the sunshine you can feel the warmth from the DeLonghi radiating through the room, heating up the walls and furniture directly.
Besides the more comfortable heat, the DeLonghi is much cheaper to run simply because of the fact that it does not raise up the temperature of the entire house like the furnace does. You can simply move the DeLonghi if you need to heat another area in the house.
One family who purchased the unit said that it usually it sits in the space between their 14x20 living room and 12x24 dining room and kitchen area, which keeps virtually the whole main floor of our house comfortable.
They did not notice any objectionable odors whatsoever from the DeLonghi, and the click of the thermostat was quiet. But another consumer said the opposite. She reported that their new heater was so loud that it woke up the whole family who were sleeping in another room with its noisy clicking. She said that she could not get back to sleep until she got up and turned the heater off, it was that noisy with its thermostat clicking.
Perhaps there are differences between individual units, but most buyers of this DeLonghi portable radiator say they would recommend it to anyone who wants to reduce their heating costs while improving their comfort.