Environ by Burley

Efficiency

Most of the heat from an open flued gas fire or solid fuel fire goes straight up the chimney. By comparison 100% of the heat generated by a flueless gas fire goes to heating the room. Tests commissioned by Burley compared a 2.5kW flueless gas fire (Burley Environ), a typical 6kW inset flued gas fire (quoted efficiency 59%), a decorative flued gas fire and a 2kW electric fire. These tests showed that the flueless gas fire produced over 3 times more heat per kilowatt than the flued gas fire and over 12 times more heat than the decorative gas fire. In other words the flued gas fire lost over 70% of the heat up the chimney and the decorative fire lost over 90%. If the 15 million flued gas fires in Britain were replaced by flueless fires, the country would save around 23,500,000,000 kilowatts of gas every year (costing £1,600,000,000) which in turn would reduce carbon dioxide emissions by over 4,200,000 tonnes every year.

As Burley’s flueless gas fires do not rely on a chimney, they provide an unsurpassed level of safety to which flued fires can only aspire. Flues and chimneys can become blocked or adversely affected by down-draughts. Burley flueless gas fires are designed to burn the gas extremely cleanly without a flue. The burnt gases are then passed through a catalytic converter. Every Burley flueless gas fire has an oxygen depletion sensor which constantly monitors the air quality in the room. If the level of oxygen drops by just 1.5%, the fire automatically shuts down. Burley’s production method is unique. Every flueless gas fire we have ever made has been bench run for 30 minutes, during which time we monitor numerous combustion and safety criteria. Burley’s rigid test criteria for combustion are four times stricter than the European standards.