Sanyo Air Conditioning Units. Sized.
When sizing a heat pump for your home we begin by determining the required cooling capacity just as we would with any air conditioning system. So pick the proper BTU based on the cooling requirements of your home. The heat capacity is normally very close to the cooling capacity in many heat pump systems.
Air Water Heat Pump Price. How The Heating Capacity is Determined?
A rating method is required because the heat pump unit is placed outside and is subject to the varying temperatures it is exposed to. As a result, colder outside air contains less and less heat, resulting in reduced heating capacity. The standard 47-degree rating method simply means that we have a way to compare system capacity from brand-to-brand.
This means that we need to supplement, or replace this reduction in capacity to keep our homes comfortable. This is accomplished with a "second stage" of heating in the form of a supplemental heating element. This element will bring the heating capacity back to the point where it can maintain an output of heat sufficient to properly warm our homes.
The basic formula to determine heating capacity relative to the outside temperature is very similar for all systems. Heat pump manufacturers' provide a psychometric chart on the heating capacity for all models they produce. The heating output capacity will be very similar to the cooling output in BTU's.
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