Fired water heaters used exclusively for heating water for swimming pools or spas are considered pool boilers and are exempt from the requirements of ORS 480.510 to 480.665 if:
- (1) Units are equipped with a flow switch or pressure switch set at a minimum of 1-1/2 psig;
- (2) No intervening stop valves are installed on the discharge side of the unit;
- (3) Discharge piping is not reduced from the engineered sizing of the fired heater;
- (4) All units are equipped with an ASME-approved pressure relieving device set at 50 psig or lower;
- (5) The unit has a maximum of ten gallons capacity contained within the unit; and
- (6) The burner is wired in series with the circulating pump.
Statutory/Other Authority
ORS 480.560
Statutes/Other Implemented
ORS 480.560
History
BCA 36-1993, f. 12-30-93, cert. ef. 1-1-94, Renumbered from 918-225-0065
DC 3-1987, f. & cert. ef. 2-18-87, Renumbered from 814-025-0038
DC 7-1986, f. & cert. ef. 5-5-86