Specifications

To ensure the ENERGYSAVER operates as designed, an industry standard Btu heat loss

calculation must be performed on the area to be heated.

• This calculation considers all factors that contribute to heat loss such as:

• Area and volume of the space to be heated

• Geographical location and climate where the furnace will be located

• Structural characteristics of the building such as number of windows, exterior doors,

construction material, etc

ENERGYSAVER® Sizing

• The Air Conditioning Contractors’ Association (ACCA) has an

industry standard Btu calculation in their “Manual J” publication.

• A qualified and licensed installer should be familiar with this type

of calculation.

• Visit http://www.acca.org/ for more information.

• Rinnai also offers a basic DV sizing calculator at

http://www.rinnai.us/heat_selector_2007.swf

• NOTE: Incorrectly sized applications can lead to the ENERGYSAVER short-

cycling or failing to bring the area to the desired set point temperature.