The energy fireplace has many advantages, relating to the efficiency that it provides (65-85%) as well as the consumption that is required for its operation (3-6 kgr/h dry firewood).

Steel fireplaces are firm constructions, with cast-iron panels or vermiculite bolted or wearable panels inside the combustion chamber, which offer very good draught and eliminate the possibility of cracks or fractures of the firebox and fumes in the area of the liner. On the contrary, if such a malfunction is presented in cast-iron fireplaces, the entire liner or part of it must be broken so that the fractured part can be replaced.
Due to their one-piece construction, steel fireplaces are more difficult to move during transportation, in comparison to cast-iron fireplaces.  In addition, their purchase cost is greater but the cost benefit and the purchase reward are greater as well.

1) Intake of primary fresh air into the combustion chamber through an adjustable damper. This

 way the intensity of the combustion can be controlled by providing oxygen whenever is required.

2) Secondary combustion over the primary one with preheated fresh air, which enters from the back side of the combustion chamber at an angle of 65°, initiating an impressive second combustion over the firewood, reducing the CO content of exhaust gases to the minimum and achieving maximum performance.

3) Tertiary air curtain with preheated fresh air which circulates between the glass and the flame, preventing combustion's smoke from dirtying the glass. When the temperature inside the combustion chamber exceeds 500 °C, this tertiary combustion is initiated on the glass of the heat-resistant (up to 750 °C) ceran door.

4) Three air chambers with the second one located close to the combustion chamber, increasing the room's temperature to the maximum by taking in external humid fresh air. Therefore, the room's humidity remains at normal levels without the need to recycle the air.