Modern electric fireplaces are designed to fit against a flat wall if needed with no recess whatsoever. This means you don't need a chimney to install an electric fireplace, as there is no exterior venting required whatsoever.

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One of the main differences between electric fireplaces and Gas Fireplaces?

1. Electric fireplaces plug into a standard 13 amp socket and do not require a flue or chimney (unlike conventional Gas Fireplaces) 2. Electric fireplaces can be installed by the home owner as there are no professional bodies needed (provided you have socket nearby) 3. Electric fireplaces can be fitted against a flat wall with no recess. In order to do so you will need to increase the fireplace rebate (internal void within the fire surround to recess a fire) in order to accommodate the full inset depth of the electric fire. 4. Both electric and Gas Fires can be purchased as inserts additions to an existing fireplace, however gas fireplaces require a gas safe registered installer to install. 5. Electric fireplaces have an option to have the flame effect flickering without having the heat element on. This is not possible Gas Fires 6. Gas fireplaces have much higher heat output than electric fireplaces which are restricted to a maximum heat output of 2 kW. It is possible to get high-efficiency gas fires With heat outputs of up to 4.5 kW 7. Electric fireplaces do not require specialist surrounds to be made out of non combustible material (hence it is possible to fit and electric fire in MDF surround), whereas gas fireplaces require non-combustible materials to be used in the construction of a fire surround. Material such as marble, stone, limestone and granite are all non-combustible materials, and are suitable for use with gas fireplaces non-combustible