Why not hot water?

Water heaters run out of hot water for a variety of reasons, but almost always at the worst of times – you’re in the middle of a shower, for example.

Let’s find ways to avoid this problem in the future. Ask these questions:

• Is your tank up to the job?

Tanks range in size from 30 gallons (1-2 people) to 80 gallons (5 or more people.) The smaller tanks provide 20 or 30 minutes of hot water. Is someone else running hot water in the kitchen while you’re bathing? Did someone else just take a shower and use most of the hot water?

• Did the electricity fail?

Even many gas-powered heaters rely on electricity for their ignition system. Is the circuit breaker tripped? Or is electricity out in your buildings and maybe the neighborhood?

• What does the heater’s thermostat say?

The heater’s thermostat may have been changed inadvertently. Maybe it needs adjustment.

More complications

Now we’re getting into areas that may require a professional.

• Is the system leaking?

If so, turn off the heater and call an experienced technician.

• Does it need to be flushed?

Sediment and scale accumulate in a tank over the years, reducing its capacity for water. Flushing will rid the system of these materials and restore it to peak efficiency.

• Where’s the safety valve?

When the temperature or pressure rises too high, this valve will open, reducing the heater’s output. It’s a sign of a malfunction.

Note: Many water heaters work well for 15 years or more, but some insurance companies are reluctant to insure properties where the water heater is more than 10 years old. Keep this in mind when trying to decide between repairing or replacing your water heater.

Want a tankless water heater? Lighthouse HVAC serves Brooklyn, Queens, Manhattan and Long Island.