Using Your Pool and Spa Safely and Efficiently Keep your spa or pool covered when not in use. Use a time clock to preset the exact hours you want your pool heated. When closing a pool for the winter, drain all water from the heater, filter, pump, and piping system. Remove the pump motor and store in a dry place. Inspect the spa heater annually for scale, mineral deposits, or corrosion.
Size is an important consideration in selecting a pool heater.
Don't select a smaller heater on the initial cost alone. A larger heater may actually be more economical because a smaller heater will have to work longer and harder to heat the same size pool. Purchase a cover with your spa or pool. Covers are a worthwhile investment for almost every spa and pool owner. Your spa or pool heater should be installed by a qualified person, following local codes and ordinances.