How Long Will It Take to Get Hot Water Again? The average gas heater takes between thirty and forty minutes to heat a full tank of water. The exact time depends on the capacity. For comparison's sake: An electric heater takes at least an hour, usually up to 80 minutes, to warm up.
Average Water Heater Recovery Times
60-70 minutes (for a gas tank water heater). 120 minutes (for an electric tank water heater).
For example, conventional tanks that hold 80 gallons of water take roughly 60 to 70 minutes to heat up if they are gas-powered. An electric storage tank water heater takes a bit longer to recover and typically needs about two hours to replenish its supply.
Once you've reset the system, you have to wait for hot water (unless you have an on-demand water heater), but for how long? It depends on the size of the tank, but with any unit, you should be able to get in a hot shower with gas water heaters within 30-40 minutes and with electric tanks, about 60-90 minutes.
If the pilot light is functioning correctly but you still don't have any hot water, the gas supply may be obstructed. Regrettably, this could mean it's time to purchase a new, more energy-efficient water heater. Contact a skilled plumbing specialist like Service Experts Heating & Air Conditioning to be sure.
The thermocouple's job is to shut a gas safety valve if the pilot light goes out. That's important because gas is always being supplied to the pilot to keep the flame lit. But if the pilot flame goes out, then the gas would still be released. After a while, the gas could collect in your home and become a health hazard.
Check the circuit breaker.
If you have an electric water heater, the first thing to check when experiencing hot water issues is your circuit breaker. A tripped circuit means the current was disrupted. As a safety measure, the circuit breaker flips.
When you use up all of the hot water in a traditional water heater, you will often need to wait anywhere from 30 minutes to two hours or more for the water in the tank to reheat. This is why many people opt to switch to tankless water heaters.
For example, on a 50 gallon electric heater, if the maximum wattage input is 4500 watts, you would multiply 4500 by . 004; result, 18 gallons per hour recovery. Then divide 18 into the rated gallon capacity (50 gallons). Result would be 2.8 -- or approximately three hours operating recovery time.
The easiest way to tell if your water heater is working is to open a faucet and see if you have hot water. Keep in mind that if you've just installed a brand new water heater, it will take some time for the tank to fill and heat up.
Typically, heat-up times depend almost entirely on what type of hot water system technology you have installed: Electric tank system: Between 1 hour and 90 minutes. Gas tank system: Between 30 minutes and an hour. Electric continuous flow/instantaneous: 0 minutes.
Reset buttons will cut the power OFF to avoid possibly dangerous situations. A number of things could be causing the problem: The thermostat could be faulty, a heater element could be bad, or the wiring could be loose or causing a short. There could also be electrical issues outside of the heater itself.
After you've successfully relit your pilot light and have gotten the flame to hold, your work isn't done. You'll need to test the pilot light by turning on the heater at the circuit breaker and then turning the heat on at the thermostat.
The Cost of Relighting the Pilot Light
A plumber can help reignite the pilot light. They will charge you an hourly fee of $40 to $150. This is usually a fairly brief project, and may just take an hour.
Once you've reset the system, you have to wait for hot water (unless you have an on-demand water heater), but for how long? It depends on the size of the tank, but with any unit, you should be able to get in a hot shower with gas water heaters within 30-40 minutes and with electric tanks, about 60-90 minutes.
The average amount of warm water utilized to shower is 10 gallons. If a total of 5 people in your household shower in the morning, you should multiply 10 gallons by the total number of water usage sessions, which is 5. In this case, a family of 5 would use 50 gallons of water each morning from 8:00 AM to 9:00 AM.
Average water heaters typically recover about 40 gallons of hot water an hour. However, higher-end models can recover as much as 60 gallons an hour. If your household uses a lot of water, we strongly recommend a higher recovery rate heater. You should look for a recovery rate of at least 50 gallons per hour.
50-gallon gas water heater – typically takes up to 40-50 minutes to heat 40-degree water to 120 degrees. 80-gallon gas water heater – typically takes up to 60-70 minutes to heat 40-degree water to 120 degrees.
Water heating times vary — it may happen instantly, or it could take 60–80 minutes. It all depends on the type of water heater you're using. Here are some common heat up times for different water heaters, assuming the appliances are new and properly sized for the home: Electric storage tank water heater: 60–80 minutes.
Distance: The farther away your hot water heater is from the faucet or shower where you want hot water to flow, the longer it will take to get there. A low volume restrictor: You may have a low volume restrictor installed on fixtures, like your shower, which can delay the delivery of water.
According to the American Society of Plumbing Engineers (ASPE) Domestic Water Heating Design Manual, 2nd ed,1 a reasonable wait time for delivery of hot water is 0-10 seconds from when the valve is opened. A delay of 11-30 seconds is possibly acceptable, and a delay over 30 seconds is considered unacceptable.
The Pilot Light Is on But No Hot Water
Luckily, it's usually an easy fix: Just ensure the unit's gas valve is turned all the way on. (No need to touch the gas knob that controls the pilot light itself, since the pilot is working.) If this doesn't fix the issue, your unit may have a faulty thermocouple.
The most obvious reason for a lack of hot water is if your power or water supply is disconnected from your boiler. Whether you have a gas or electric boiler, it is essential that the right fuel is being supplied to the system at all times, as well as water arriving from the mains or from a separate storage tank.