A frequent mode of operation for solid fuel boilers is bivalent operation with a condensing boiler. Here, an exhaust gas temperature monitor must ensure that only one system is used for energy generation at a time.
The JUMO heatTHERM-AT thermostat is used as an exhaust gas temperature monitor (ATW) for accurate measurement of the exhaust gas temperature and reliable switch-off. It is optimally designed for the new boiler types. If an exhaust gas temperature of 80 °C is reached in bivalent operation of a solid fuel boiler and a condensing boiler, the condensing boiler is locked through the ATW.