Sizing a central heating pump will help you determine the right sized pump that will fit your home’s requirements. A correctly sized heat pump will efficiently heat and cool your home. A too-large pump can cause increased condensation when running the air conditioning, while a too-small unit can not produce enough heat. The longevity of the unit can also be affected if it is the wrong size or if it is installed improperly.
Heat Pump Facts
A central heating pump is an appliance that circulates the air while heating and cooling the atmosphere in a home. It also acts as a dehumidifier and filtering system to remove air impurities.
The heat pump typically is comprised to two units – an outdoor unit and an indoor unit. They are also called split systems due to this reason. The heat pump can be operated via a remote or through an indoor mounted console.
Heating and Cooling Method
Heat pumps use a method that pulls heat from the air or the ground to heat or cool a home. This transfers the heat into the desired action without burning fuel to create. This method works best in climates that have moderate yearly temperatures.
Different heat pump sizes are determined by the number of BTUs of the unit. This number is used as a guide to show the amount of heating or cooling power they will provide.
Selecting the Right Size
As every home is different, sizing of the central heating pump is as individual as each home. The key to finding the right size is having an accurate estimate of the heat needed in your home in the winter and transferred from your home in the summer to cool the home.
The amount of heat needed to warm a home is dependent upon the rate of heat loss through windows, walls and roofs. A well insulated home will not require as much power to counteract heat loss and a smaller sized, lower BTU heat pump will be sufficient. A larger unit is recommended for larger homes or those that experience significant heat loss.
This also applies to keeping heat out in the summer. If the home is well insulated, a smaller pump will be able to handle the air conditioning needs. A benefit of using a smaller size for heating and cooling is that it is less expensive to install and run.
Other Sizing Considerations
Consider the direction that the rooms in the home are facing. For example, a home with predominately north facing rooms will need less heating and require a smaller sized heat pump as they will retain more heat from the sun than south facing rooms.
Checking reviews of individual brands of heat pumps can also help you select the right size and energy efficiency of a unit.