Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
Source and Use side nodes are meant to represent the water heater used as a source (provides hot water to a component) or where there is heat exchange between the tank and another fluid (a use of the tank as a sink/source). In reality there is no real difference since each of these nodes adds or extracts heat to/from the tank in the same way mathematically.
