Maybe my own inaccuracy. The thermometer I bought can only be used as a reference, because it can't be calibrated without verification, but the thermometer of the heating company may not be verified, but the price they bought is high, and the quality will definitely be good and relatively accurate. I wonder if the temperature you measured is very different from that measured by the heating company. 1-2 degrees should be normal.

Terms:

When measuring the heating temperature, when the doors and windows are normally closed 1 hour or more, place the measuring instrument at the center of the room to be measured 1 meter from the ground, and the stable reading of the measuring instrument is the actual heating temperature.

If it is necessary to measure the room temperature, the doors and windows of the room to be measured should be closed to keep the temperature. After the room temperature is stable 10 minutes, read it once every 3 minutes for three times. Take the arithmetic average as the measurement result. If the measurement results of the first group fail to meet the standard requirements, the previous measurement steps can be repeated at intervals of 10 minutes. If the specified temperature has not yet been reached, the final measurement shall be made 2 hours after the start of measurement. The temperature measured at this time is the final result.