fireplace control eu 391 zpid Throttle:150 mm such as the double thermal

such as the double thermal relief valve

exhaust gases

Heat pump application

hot-water-resistant elastomer (EPDM)

Before installation

fireplace control eu 391 zpid Throttle:150 mm such as the double thermalTECH EU 391 zPID Chimney Controller with Throttle Valve & Touchscreen Product description The TECH temperature controller EU 391 zPID is a Fireplace control unit for water bearing fireplaces heating stoves. On the zPID algorithm Does the device automatically regulate the Combustion via a throttle valve and controls simultaneously ZH pump, Additional pump (hot water or underfloor heating), Buffer pump as well as a potential free output for controlling