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. This is important for compliance with your local building codes for insurance purposes. Your plumber or contractor can usually install a natural gas spa or pool heater. When installing a spa or hot tub, insulate it well around the sides and bottom. Sizing your Pool or Spa Heater Size is the most important consideration when selecting a heater.