Update: After a lot of searching, I found that the leak from the valve on the fuel tank cap was responsible for the strong fuel smell in the room even when using the odorless Kerosun fuel (which the technician claimed was due to me not screwing the cap on properly, but after contacting the representative in Athens, he "discovered" that there was indeed an issue with the mechanism). Fortunately, the replacement was done quite quickly (in 1 week) and now the heater works normally, pleasantly warms the space, and does not smell during operation, so I made the relevant changes to the review and raised its rating to 4 stars. It loses one star due to the higher cost of purchasing the odorless fuel and the lack of access to bulk fuel for the countryside.
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I bought it about 1 month ago, using the Rainbow GF 2.3kW that I have been using for the last 3 years as a comparison.
1) Heating:
It has a fan and, compared to the Rainbow GF, it heats the 45 sq. m. space where we live better.
2) Consumption:
With the temperature set to 20-22 degrees and used for about 6 hours a day (only in the evening), it consumes 1 20L canister in 10-12 days. Its fuel costs around €48 per 20 liters, so it is very uneconomical for continuous use.
3) Dimensions and portability:
It has two handles on the right and left and is slightly larger than a small dehumidifier. When full of fuel, it becomes quite heavy for an average adult to move easily, so extra care is needed.
4) Maintenance cost:
It does not seem to require any wick replacement or anything like that, so theoretically, it won't require servicing every 1-2 years like the Rainbow GF, but it needs a cleaning of the fuel filter every 1-2 weeks. Also, it consumes electricity during startup and while operating, so it requires a continuous power supply.
5) Miscellaneous:
- It has various functions, such as a timer for turning on/off and a temperature regulator.
- It cannot operate during a power outage unless connected to a power station of 500W or more.
- It is much more sensitive to vibrations than the Rainbow GF, which means it can turn off even if you touch it awkwardly, so there's no chance of turning it on/off outside the house without some workaround.
- When I remove its tank, if it still has fuel, it starts to drip from the valve. The same happens when I refill the fuel in the tank: as soon as I turn it to grab the handle, it starts to drip fuel. This usually stops when I slightly press the metallic head of the valve with my nail.
- When we turn it on, we keep the balcony doors open for 10 minutes to let the smell out of the house.
- While using it, we make sure to leave a window open 1-2 millimeters to allow oxygen into the space and try to ventilate the house daily to let any harmful substances out.
- According to the Kerosun website, there is also an option to purchase fuel with an exchangeable 18L canister, which costs less per liter compared to the disposable one, but only for those living in Athens.

Reading the comments, I decided to buy it, even though I had an old kerosene heater, not an inverter, where I would light it on the balcony and extinguish it again on the balcony so that it wouldn't smell in its normal operation inside the house. The smell was minimal and not bothersome. Now, let's talk about this model. I have made a makeshift base with wheels where the heater is placed next to the balcony door, so I can easily light it and extinguish it on the balcony without moving it. Luckily, there is a power outlet inside the house next to the balcony door. Now, let's talk about its operation. It smells a lot to the point where you can't sit in the house, it's really dangerous. I called a technician, they checked it to see if there was any problem, but it was the same. I always use official and odorless fuel. Now it has become the most useless purchase that I could have made, and I am still using my old Omni round heater, which does warm up and has a slight smell, but I need 20 liters of fuel every week for a 37 sqm studio apartment and using it for 8 hours a day, so it burns a lot. Before buying it, it would be good to see it working in someone's house, someone you know, so that you don't waste your money. Another negative aspect is that it doesn't work without electricity, so it turns off during power outages, and if it turns off inside the house, you have to go out to the balcony to recover from the smell it leaves. The only positive thing is that it is small and doesn't take up much space

The stove is the same model as the lc 45. The only difference between them is the electronic system and, of course, the price, which is approximately 100 euros cheaper. Everything else is the same. The only thing is that the 45 is a new model. Because it is for 75 sqm, it requires a large space. To work properly, calculate a perimeter of at least 70 points with nothing in between. Also, there should be a slightly open window or balcony door in the area where it is located, about half a finger thick. It smells slightly when lit and extinguished. But with an open window for three minutes, everything is okay. It works fine with kerosene, specifically kerosun crystal. With any other fuel, it smells strongly. I prefer to buy directly from the dealership, where kerosene is also more economical. In terms of consumption, with the selected temperature at 21 degrees in the stove, it burns approximately 0.26 liters per hour. Be careful when transporting it during operation because if moved forcefully, it will extinguish. It heats up the space quickly. Contact the dealership for any questions. I hope I helped

I have been using it for 6 years now. It smells when you light it up, so you need to ventilate. Five minutes before I turn it off, I lower the desired temperature to the minimum, so it doesn't smell much and there is no need to ventilate the house. It adequately covers a 45 sq.m. basement, working all day at the regulated minimum desired temperature (6°C). I need 2 reusable 18-liter containers per month, costing 32 euros each (price in 2021) in a house with non-existent insulation, now with the cold weather. I consider it economical. It should be noted that it works all day at the minimum setting and keeps the basement at 20°C. A great advantage is that it does not create humidity during its operation like gas heaters and it is super safe from fumes. Attention!!! Buy the appropriate stove for your space. A large one that works at the minimum temperature (6°C) does not smell during use, while a small one that operates at 50% of its capacity will make the room smell no matter what type of fuel you choose. I have both and I've learned from experience.