I live in the West Tokyo area, and there are many fields and vacant lots around my house. It's nice and peaceful, but it gets cold in winter anyway, so my recent concern is mostly heating appliances.


Until now, I have survived with air conditioners and hot water bottles, but there are some inconveniences. Meanwhile, I had the opportunity to try Delonghi's "third heater", the "multi-dynamic heater," so I would like to take a closer look.

◆ What is a 3rd generation heater?

The model used this time is the "MDH15-BK" released last year (for about 10 to 13 tatami mats). The size is L49.5 x W27.5 x H66.5 cm, and the weight is 12.5 kg. The compact and stylish design is easy to get used to from Japanese-style rooms to modern interiors.



It looks like an oil heater, but the mechanism is completely different. This product has a unique structure that efficiently extracts the heat of multiple heaters, and is characterized by gently warming the room with radiant heat (heat transmitted directly by the heat rays of far infrared rays) and natural convection. In addition, it is equipped with "Auto Adaptive Technology (AAT)" that measures the difference between the room temperature and the set temperature and automatically adjusts it at the ± 0.5 degree level, and it seems that it can maintain the optimum temperature for a long time with the minimum necessary power consumption. According to the company, this delicate adjustment is the reason for being the "third generation."

◆ Experience

It seems that it is faster to move it than to think in theory, so I will try to operate it. The operation is performed with the attached remote controller, and the current operating status is displayed on the main unit panel.


When the switch is turned on, soft warm air comes out from the upper vent.


What surprised me at this point was the operating noise. It's almost silent except for the beeping sound when the power is turned on (according to the company, it's lower than human breathing).

There is also a feature in how the room warms up. Typical air conditioners and heaters warm only where the wind hits them and around the appliances, and can stay cold when moved to the other side of the room. However, this heater is wrapped in the same warmth no matter where you are in the room, giving the impression that the seasons have changed.

Furthermore, once the room temperature rises, it remains constant, and the humidity in the room does not change even if it continues to operate for a long time. Even if I took a nap inadvertently, it didn't hurt my throat due to dryness.


◆ Program mode is convenient!

The heating menu includes an "AUTO" mode that warms the room rapidly, an "ECO" mode that saves 20% on electricity bills, and a mode that allows you to set the temperature and strength in detail.

The most convenient one was the "program mode", which allows you to set the heating program for one week in detail. For example, you can set up a schedule according to your own life, such as driving at a higher set temperature when you wake up on weekdays and from returning home to going to bed, and at a lower set temperature otherwise.


The author, who is not good at getting up in the morning, keeps the room warm by operating it several hours before waking up on weekdays. Since there is no sound when operating, it is possible to get out of the futon smoothly without disturbing sleep. Other than that, it is in a mode that operates when the room temperature drops below 5 degrees Celsius, so it is off unless there is a cold wave in Tokyo.

◆ The room temperature rises slowly

One thing I was interested in was the speed of warming up. The room didn't warm up as quickly as I expected, so you can use thick curtains or preset it if you want to keep it warm when you get home. By the way, safety measures such as automatic circuit shutoff in the event of a fall, an abnormal temperature overheating prevention device, and a child lock are also taken, but always check if there is anything flammable around the heater.


Also, since the plug is rated at 15A100V, it is difficult to fill it with a heater in one place if it is a general household outlet. Regarding this, the 900W model "MDH09" (about 6 to 8 tatami mats) has been released this year, and I would like to recommend this depending on the size of the room.

◆ What kind of house is it suitable for?

The biggest merit was the quietness and the difficulty of drying. It is suitable for families with children and elderly people who are liable to get sick because there is no need to worry about the warm air hitting them directly and they will not blow up dust. Also, in terms of warming the room evenly, it seems to be useful in the living room where a large number of people gather.

The suggested retail price (excluding tax) is 100,000 yen for MDH15 and 75,000 yen for MDH09. I'm too comfortable to let go, so maybe I'll talk about winter bonuses ...