How important is proper heater sizing?
Accurate sizing is critical to proper system performance. Improper sizing can cause heaters to fail prematurely either from running too frequently or not enough. If you have hot water, but find that you tend to run out during peak times when demand is high, the issue may be due to improper sizing. In restaurant applications, proper heater sizing is crucial because running out of hot water can quickly become a heath code violation. Insufficient hot water in a hotel or apartment complex can lead to unhappy guests and tenants. An accurately sized water heater will be capable of producing an ample supply of hot water (at least 120&Mac251;F) to all equipment and fixtures that demand it, at all times. The original sizing survey must take into account any and all fixtures (sinks, dishwashers, showers, etc.) that will demand hot water during peak performance times (morning showers, Friday fish fry, Sunday brunch, etc.) and how quickly the water needs to recover.
