How often shall water tank heating systems be tested?

• A. Monthly
• B. Quarterly
• C. Prior to the heating season
• D. Immediately after the heating season

Answer: (C)

Seasonal readiness is what this item tests. You want the water tank heating system to be proven and ready before cold weather arrives, so a pre-season check ensures it will operate when demand spikes. During the check you verify that the thermostat and controls function, safety devices operate, the energy supply or fuel lines are in order, and circulating pumps or burners start and run as designed. This approach reduces the risk of a heating failure during the heating season and avoids unnecessary monthly checks for equipment that operates primarily on a seasonal basis. Testing immediately after the heating season doesn’t protect against failures in the upcoming season, whereas a pre-season test directly confirms readiness for the period of greatest need.