Electrical conduit may be PVC plastic, schedule 40, below grade. Must be U.L. listed conduit. Above ground, may be PVC plastic schedule 80 sunlight resistant, or rigid galvanized steel. Any fossil-fueled swimming pool heater shall have a thermal efficiency of at least 75 percent and shall be so identified on the plans and the heater. Outdoor pools equipped with a fossil-fuel or electric heater shall also be equipped with a pool cover.
Pool cover to be on pool at time of final inspection.
Heater On-Off switch mounted on the outside of the heater for easy access to allow shutting off the operation of the heater without adjusting the thermostat setting and to allow retarting without the relighting the pilot light. Time clock on recirculating pump. Directional water inlets for good mixing of pool water.