Then, you should subtract the return air temperature from the supply air temperature. You will find a recommended temperature rise range typically about 35-65 degrees)on the label plate for the furnace. Compare the value you measured with the label plate. If the temperature rise you measured is below the minimum range for your furnace, the blower heating speed can normally be reduced. If the temperature rise you measured is above the high range for your furnace, the blower heating speed can be increased.
Weather Lowdown. December in Istanbul sees the start of winter, with cold temperatures and wet weather. The average temperature is just 8C, with highs of 10C and overnight lows of 6C or below.
Whatâs the weather like in Cyprus in December? With a location in the eastern Mediterranean just off the south coast of Turkey and north of Egypt, Cyprusâ location means it has warm weather in December. Itâs one of the hottest destinations in the Mediterranean, although youâll get some rain at this time of year.