Any boiler or pressure vessel separated from the potable water system by an approved backflow prevention device shall have an installation permit and inspection and be provided with a permit to operate by the Boiler Section of the Building Codes Division. Such installations in single-family dwellings shall be exempt from subsequent inspection required by ORS 480.560(1)(a) to (d). Reference: ORS 480.525(2)(c).
Utility water heaters that heat potable water for domestic and space heating use, which are equipped with approved safety devices and operate at or below all of the following:
- Volumes of 120 gallons (454 L), or
- Water temperature of 210°F (99°C), or
- 150 pounds (68 kg) operating pressure, or
- 200,000 Btu (211 000 kJ) input are regulated by the plumbing and mechanical parts of this code.