De Dietrich 85000014 flat thermometer

The De Dietrich 85000014 is a flat thermometer listed under the category of thermometers and manometers. It is identified by catalogue article 336.796.002 and manufacturer code 85000014. This part belongs to the group of measuring instruments used for commissioning and service tasks rather than for the firing process itself. Thermometers of this type provide a visual indication of temperature at a specific point in the system, such as on the boiler body, return line, or flow pipe. Selection of a replacement thermometer is based on the required measuring range and the location of the working point on the scale. For accurate readings, the normal operating temperature should sit near the middle of the scale. The connection type, mounting method (e.g., immersion stem, surface mount), and the dial diameter must also match the existing installation. When replacing a flat thermometer, verify the insertion length and thread or clamping arrangement. Ensure the temperature range covers both the expected operating temperature and any possible over-temperature conditions. A mismatch in range or mounting can lead to incorrect readings or mechanical interference.