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.
Istanbul is divided in three by the north-south Bosphorus Strait (Istanbul Bogazi), the dividing line between Europe and Asia, the estuary of the Golden Horn (Halic) haliÃ§ bisecting the western part and The sea Of (Marmara Marmara) denizi forming a boundary to the. southstanbul is a huge city with several district articles containing sightseeing, restaurant, nightlife and accommodation listings â have a look at each of them. Istanbul (Turkish: Ä°stanbul) is Turkey 's most populous city as well as its cultural and financial hub.