Hybrid domestic fireplace

The hybrid domestic fireplace addresses inefficiencies in ethanol and traditional fireplaces by using a mixture of short-chain alcohol and long-chain hydrocarbon fuels, transforming the hydrocarbon into vapor or mist for realistic wood-burning flame simulation in apartment buildings.

EP4359704B1Active Publication Date: 2025-12-31KAL FIRE BEHEER BV
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Patent Information

Application Number
EP2022733676
Authority / Receiving Office
EP · EP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-06-25
Filing Date
2022-06-22
Publication Date
2025-12-31
Estimated Expiration
2042-06-22

AI Technical Summary

Technical Problem

Existing domestic fireplaces that mimic wood-burning flames are inefficient, as ethanol fireplaces produce vivid and transparent flames, and traditional fireplaces require flue gas discharge channels, making them unsuitable for modern apartment buildings.

Method used

A hybrid domestic fireplace that combusts a mixture of a short-chain alcohol fuel and a long-chain hydrocarbon fuel, with the latter being heated and transformed into a vapor or mist to enhance flame properties, mimicking wood-burning flames.

Benefits of technology

The hybrid fireplace produces flames that accurately mimic wood-burning flames by combining fuels to achieve the desired orange color and consistency, suitable for installations without flue gas discharge channels.

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Abstract

The present invention relates to a hybrid domestic fireplace, configured to burn a fuel mixture of a first combustible fuel and a second combustible fuel, comprising a combustible long chain hydrocarbon fuel, the fireplace comprising: a mixing device, configured to mix the first fuel and the second fuel to form the fuel mixture and, a first fuel supply, configured to supply the first fuel to the mixing device, a second fuel supply, configured to supply the second fuel to the mixing device, and a burner, configured to combust the fuel mixture, wherein the mixing device is further configured to heat the second fuel to a mixing temperature, and wherein the mixing device is configured to mix the first fuel with the heated second fuel to form the fuel mixture.
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Citation Information

Patent Citations

  • Mixing / gasifying method of liquefied natural gas and liquefied petroleum gas

    JP1986197897A