The Thatch Alert Chimney Monitor System has been specifically designed to monitor the temperature of the chimney brickwork at the point where it meets the thatch.
The Thatch Alert Chimney Monitor System was designed to monitor the temperature of the chimney brickwork at the point where it meets the thatch.
The system acts as an early warning device to inform the home owner of potential high temperatures.
For many years it was widely thought that the high temperatures generated from wood burners and multi-fuel stoves which transferred through the brickwork of the chimney to the thatch – known as Heat Transfer – was the major cause of thatch fires.
However, the comprehensive testing carried out by the Fire Protection Association (findings published in their Fires in Thatched Properties with Wood Burning Stoves report and available in Resources - Downloads) dismissed this theory.
The conclusion was that hot gasses are more likely to escape via the chimney pot rather than through the brickwork. Although heat transfer was dismissed as the major cause, if certain factors came into play, missing bricks, blocked or partially blocked flues, then gasses could pass through to the thatch but this is unlikely.
The installation of a flue liner, preferably a rigid insulated liner type will dramatically reduce the risk of heat transfer occurring in the first place.
The Thatch Alert alarm system is made up of two thermocouple probes, a transmitter and a receiver. The two probes are securely attached to the chimney stack and plugged into the transmitter. The transmitter will then send a signal to the receiver which will display the temperature of both probes.
As with all homeowners that contact us, we first ask if they have a liner fitted and if so what type. If the answer is no or they are not sure, we suggest they speak with their chimney sweep and/or HETAS.
The Thatch Alert system is not a replacement or compromise for a poorly performing or faulty flue/chimney. The system is totally optional for any homeowner that is looking for extra piece of mind over and above a correctly lined chimney.
The Thatch Alert Chimney Heat Monitor System works very differently to other early warning devices, as it continues to monitor the temperature after the alarm has been triggered allowing the homeowner to carry on monitoring the temperature.
Once installed, in the event of high temperatures being recorded, the system will trigger an audible alarm, allowing the owner to take action.