How many m² can be heated with the burner power?

The wattage of an ethanol fireplace is one of the most important pre-purchase criteria. Many people choose a model for its design alone... only to discover that it heats too little - or too much - for their room.

• So how many square metres can an ethanol fireplace really heat ?
• Which wattage to choose for a living room, bedroom or apartment ?
• Can a bioethanol burner replace a conventional heater ?

Here's a complete guide to choosing the right wattage for your surface and avoiding the most common mistakes.

Does an ethanol fireplace really heat ?

Yes. Contrary to popular belief, an ethanol fireplace produces a very high level of energy real warmth.

Bioethanol combustion generates :

• real flames,
• rapid temperature rise,
• immediate thermal radiation.

As there is no flue, the heat remains in the room. This is one of the great advantages of bioethanol fireplaces over traditional open fireplaces.

On the other hand, a essential point :

An ethanol fireplace is an auxiliary heater, not a central heating system.

It greatly improves the thermal comfort of a room, but is not designed to heat an entire house in winter.

What surface area can an ethanol fireplace heat ?

The heated surface area depends mainly on :

• burner power,
• home insulation,
• ceiling height,
• the room opening,
• outdoor temperature.

On average :

These values correspond to a correctly insulated room with a standard ceiling height.

Which wattage to choose, depending on the size of your room ?

For a small room (10 to 15 m²)

A small ethanol fireplace or compact burner is all you need.

This is the case for :

• a bedroom,
• an office,
• a studio,
• a small sitting area.

A power between 1.5 and 2 kW is generally ideal.

Compact, free-standing models are ideal for this type of use, such as the Twister, , Tibro or Coria.

Other models are also available.

For a 20 to 30 m² living room

This is the most common configuration.

In this case, a burner around 3 kW offer :

• a good feeling of warmth,
• a beautiful height of flame,
• excellent visual comfort.

This is generally the best compromise between :

• aesthetic,
• consumption,
• thermal efficiency.

Ethanol stove models are ideal for this type of situation, as are the Bari, , Scala, , Voltera or Odemira

Other models are also available.

For open-plan rooms of 40 m² or more

In a large living area, you should give priority to :

• a large burner,
• several homes,
• or an XXL fireplace.

A burner of 5 kW or more allows :

• better thermal diffusion,
• a stronger visual presence,
• a real sense of warmth even in open spaces.

XXL models are ideal for this type of case, as are the Rimini, , Capri, , Calgari or Terracina

Other models are also available.

How do you calculate the power required ?

A simple rule of thumb:

It takes about 100 W per square metre in a properly insulated home.

Example:

• 20 m² room → approx. 2000 W (or 2 kW) required,
• 30 m² room → approx. 3000 W (or 3 kW).

This remains an estimate.

In a new, well-insulated apartment, an ethanol fireplace will often be more efficient than in an old house with high heat loss.

Can an ethanol fireplace heat an apartment ?

Yes, in some cases.

In a modern apartment :

• well insulated,
• with little volume,
• and an enclosed main room,

an ethanol fireplace can provide real daily thermal comfort.

Many users are even reducing :

• the use of electric heating,
• or the need to constantly heat certain rooms.

On the other hand, in an older, poorly insulated house, a bioethanol fireplace is primarily a comfort enhancement.

Choosing the right ethanol fireplace for your surface area

Before buying, always consider :

• of the actual surface,
• of the room volume,
• insulation level,
• and your objective.

Would you like to :

• a decorative ambiance ?
• a real space heater ?
• a big design flame ?
• a custom built-in project ?

The right burner is the one that balances :

• aesthetic,
• safety,
• autonomy,
• and thermal power.

To compare available models, see the chimney selection and bioethanol burners suitable for both small and large surfaces.