This heater was only used on the 1998 Hot Spot RE, RLX, SE and SLX spa models. This heater is attached to the rear of the control box and is a flow through type heater. It's secured to the rear of the control box using two bolts and attached to the spa's plumbing using compression fittings at either end.
Models | Serial # Range | Years |
RE (round) | Z-181001 to Z-489999 | 1998 only |
RLX (round) | ZQ-181001 to ZQ-489999 | 1998 only |
SE (square) | Y-181001 to Y-489999 | 1998 only |
SX (square) | YQ-181001 to YQ-489999 | 1998 only |