Black glass fascia, Minimum room size 23 metres cubed, Requires a minimum ventilation area of 100cm squared, 90% Energy Efficient, Heat Output: min 1.3k W, max 2k W, Heat Input: 2.3k W, Gas fires should be fitted by a Gas Safe registered installer, All fires must be installed in accordance with the manufacturers installation instructions & current building regulations, To calculate running costs, multiply the heat input of the fire by your gas/electricity tariff (heat input x pence per k W/hr = running cost), Please note that our fires are designed to supplement central heating & should only be used as a secondary source of heat