Excerpt from ASHI
The inspector shall:
- the installed heating equipment.
- the vent systems, flues, and chimneys.
- the energy source.
- the heating method by its distinguishing characteristics.
The inspector is NOT required to:
- the interiors of flues or chimneys which are not readily accessible.
- the heat exchanger.
- the humidifier or dehumidifier.
- the electronic air filter.
- the solar space heating system.
- determine heat supply adequacy or distribution balance.