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What is bioethanol?

Bioethanol is a renewable plant-based alcohol fuel that is made by distilling plants with high sugar and fibre content. To be considered bioethanol, the product must have an alcohol percentage of 96%.

Does bioethanol smell?

The use of quality bioethanol with a 96% alcohol percentage guarantees a high degree of purity. Using fuels with a lower percentage and of lesser quality can produce a smell due to the higher amount of non-alcoholic components. If you can smell something when opening the fuel bottle, that is a clear sign that burning it will produce more smells that other higher quality fuels.

The burner and its design quality will also be a factor in this regard. The flame in these fireplaces comes from burning the vapour given off by the bioethanol. Burning bioethanol directly will produce a stronger smell.

Lacunza burners contain a pressed ceramic fibre that is soaked in the alcohol. This evaporates and is ignited once it leaves the burner. It is therefore important to fill the burner with bioethanol without the liquid evaporating. All Lacunza units come as standard with an electric pump and hose to make this process easier for the user.

Does bioethanol produce gas?

The combustion of bioethanol produces harmless steam and CO2 (the same gas we produce when breathing). They are 100% safe for your health.

Does it need a smoke outlet?

No. Bioethanol burners do not require any kind of gas/smoke outlet because they do not give off any harmful gas. Neither do they require this kind of installation to operate.

How much does a bioethanol fireplace consume?

The answer to this question will vary depending on the size of the burner. However, on average, they will use approximately 3/4 of a litre per hour.

Can I turn off the fire or should I wait for all the fuel to be consumed?

An 80 cm burner can hold 4.5 litres, which means the fire will last approximately 7 hours. The burner vent can be closed to extinguish the fire but two issues need to be considered when doing so:

  1. Keep the sliding top plate on the burner closed to prevent the bioethanol from evaporating
  2. If the burner is hot, it should not be re-lit (best wait for it to cool) or re-fuelled until the burner is cold. These operations may be hazardous to user safety.
Do bioethanol fireplaces get hot?

Of course, the fire is real so it gives off heat in the room where it is installed. They are not designed as a main source of heat but rather as a decorative item with real fire that provides warmth in a room.

Safety

Bioethanol fireplaces are exposed and have real fire. Do not get flammable material close to the flame. Do not add more bioethanol while the flame is lit or when the burner is hot. Take care not to put your hands in the fire or on parts of the fireplace when it is or has been alight because they can reach high temperatures.

We recommend reading and following the guidance provided in the Instruction Book, which can also be downloaded at www.lacunza.net/bioetanol

We’re here to help you
Do you have any doubts? Do you have a technical question or require assistance?
Glossary
A-L M-Q R-Z
A
AEFECC is the only association that brings together manufacturers, importers and suppliers of wood burning stoves, fireplaces, cook stoves, boilers and, in general, wood burning and biomass appliances in Spain.

High-pressure ventilation system with centrifugal turbines and speed regulator (control unit).

Combustion occurs within a closed chamber, acquiring the necessary oxygen from the outside without altering the oxygen in the fireplace.
Heat transferred to the atmosphere.
This is a type of fan where both the motor and the blades are mounted directly on the shaft. When the shaft and blades rotate, it produces a current parallel to the shaft.
C
Average power available from the device, certified in official laboratories.
A centrifugal tangential fan in which air is driven by a turbine or impeller, sucking it through the centre, expelling it through its blades parallel to its axis and exiting in a perpendicular direction to achieve greater pressure / speed with less sound.

Technology that ensures complete combustion of all pollutant particles in the flue gas.

Easy access to remove soot through a hatch (patented) Easy manual disassembly of the baffles, no tools required.
They are usually cast doors without glass. They are totally opaque.
Completed constructed modular wood burning cook stove ready for installation.

A value that measures emissions of carbon monoxide, an odourless, colourless, tasteless, toxic and highly flammable gas.

An Italian regulation that encourages interventions to increase energy efficiency and thermal energy production from renewable sources for small installations.
It is called convection when heat is transmitted and creates natural air circulation in any room.
D
Rotating cover that allows the passage of air/smoke through a pipe to be opened/closed
A device used to divert the direction of the smoke flow before leaving the duct
Technology whereby the gas from the firewood’s initial combustion is burned again. It provides greater efficiency and life for your firewood with lower consumption.
These are fireplaces or wood burning stoves that have glass on the front and back of the fireplace in order to see the fire and get heat from both sides.
Channelling of air through ducts
E
Fire control system that can regulate the optimal combustion and cleaning of the firewood appliance with one simple remote control device.
Surface treatment of the wood burning cook stoves with a high-quality enamel. Makes cleaning easy with as little as a damp cloth.
A European regulation (compliance with which is mandatory starting in 2022) that will require greater energy efficiency in all products and lower emissions of CO, OGC, NOx and other types of hitherto uncontrolled pollutant gases.

A European certification related to energy consumption. It grades the product based on strict sustainable criteria defined at European level and ensures that the purchased product meets the maximum sustainability requirements

This consists in the efficient use of energy. We refer to an efficient wood burning appliance when it consumes less energy than the average energy required to make it work.
High pressure ventilation system with centrifugal turbines and speed regulator (switchboard) to allow different rooms of the home to be heated through ducts.
Connectible system that takes air from outside the house for combustion. Suitable for low consumption housing.
Novel air intake system on the glass to keep it clean for longer.
F

An instrument or apparatus with rotating blades that drives or removes air.

Flamme Verte is a quality label for wood burning appliances in France. To obtain the Flamme Verte label, the energy and environmental performance of each device is controlled in laboratories, accredited against ISO / IEC 17025 and notified by the European Commission, whose tests give access to the CE certification.
Hot air bypass system with selectable outlet. It allows for longer ducts and makes it possible to close the air outlet. Includes a turbine control unit.
G
A sliding door opening that pulls up and can stay hidden
H
Entrance that provides access to clean the cook stove, wood burning stove or fireplace.
Wood burning appliances with heat ducting are those that heat the room in which they are installed and also the adjoining rooms through a duct system that distributes the heat to different spaces.

The square metres heated by the wood burning stove, cook stove or fireplace.

The cubic metres heated by the wood burning stove, cook stove or fireplace.

Cook stoves, wood burning stoves or fireplaces that heat water in a circuit to heat the entire house in a more even and balanced way
I
Also known as cassette fireplaces, they are an evolution of the classic open fireplace. Specially designed to be inserted into existing holes
Set of iron pieces used to decorate or reinforce the structure of a door or another object.
M
An appliance, in this case for firewood, that is embedded in the wall in a single piece.
N
Tubular opening where the air used for combustion in the wood-burning appliance enters in or travels out through ducts to other rooms
P
Optimum burning technology allowing high combustion efficiency values to be achieved. Consumes less and makes loads of firewood last longer.
Device with which the wood burning appliance’s power can be controlled.

Minimum and maximum power of the wood burning appliance or the variance in power obtained from conditions of slow and maximum combustion.

Directed turbulence combustion to reduce particulate pollutants.

R

This refers to some materials’ property of being resistant to high temperatures without decomposing or storing heat.

Door opening system that slides completely flush with the wall, making the doors disappear.
S
A hollow, spirally wound tube used to cool the heating device’s tun (tank) in case of overheating.
This refers to glass with the imprint of something written or drawn on it.
A system allowing turbines to be shut off to enjoy complete silence.

It is the part of a wood burning appliance through which the fumes are expelled.

T
All fans in which air flow leaves its axis in a tangential direction.
A valve that prevents overheating in wood-burning appliances by letting cold water pass through it toward the safety coil

A material with a high capacity for storage and thermal transmission, besides its insulating properties. It is resistant to high temperatures and is an excellent heat accumulator. Great white finish.

Useful heat released by the device. It is the sum of the heat released to water and the atmosphere.
A tank containing the water to be heated by fire in boilers
V

A novel material with excellent insulation, high strength, aesthetics and lightness. In addition, LACUNZA vermiculite uses the appropriate density, thickness and dimension for each device. This customised design for each project allows for longer lasting fires, avoiding any type of problem. It is essentially a material composed of aluminium magnesium and iron silicate.

W

Average power released by a heating appliance (for water) to a heating system.

Wood burning cook stove requiring on site assembly with heat-resistant materials such as refractory bricks.
Y

Relationship between the power generated in the combustion chamber relative to the heat felt in the household.