Building Heating Load vs Room Heating Load

Good evening everyone!

In order to design an efficient and cost effective radiant hydronic heating system, it is important to understand heating loads.

A heating load, in a few words, is an estimate (based on calculators) of the rate of heat loss of a room or a building. Thus, there is a room heating load and a building heating load. 

In order to correctly design a hydronic heating system, it is important to calculate the heating load of each room, which can then be added to produce the building heating load.

Now, calculating the heating load perfectly is not possible as many factors can influence heat loss, including defective installation of insulation, traffic in and out of building, the quality of insulation materials and construction materials overall.

It is also important to calculate and pay attention to the room heating loads individually so that one room receives the correct rate of heat. 

Now, the design heating load takes into consideration the rate of heat loss during the near minimum outdoor temperature, called the 97.5% design dry bulb temperature.

Arch Plumbing is here to help you with all your radiant hydronic heating. 

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