Yes, you should turn off or adjust your water heater when heading out of town. It saves energy and prevents catastrophic flooding if the tank leaks. However, the exact approach depends on how long you will be gone and the type of heater you own.
If you have an electric water heater, it is recommended that you shut off the power and the cold water supply to the water heater if you are going away for any length of time. You will save electricity and limit any damage in case the tank leaks. Upon your return, do a visual inspection of the water heater.
Shut Off The Water Heater
If you have a gas water heater, you can turn the heater off at the source and shut off the gas valve. If you have an electric heater, it can be turned off at the breaker. Once off, you can open the valve or spigot on the water heater to drain the water into a pail or bucket.
Yes, it is perfectly safe to turn off your hot water heater for a week. However, to prevent bacterial growth like Legionella and avoid damaging the system, do not drain the tank.
If you are going away for more than a few days, use the vacation mode setting, or if you have a digital readout, turn it down to 50°F. DON'T shut off the water heater entirely, to avoid potential freeze-ups or difficulties in restarting the heater.
Shutting off the water supply does not immediately affect the water heater, but you must turn off the water heater's power source (breaker or gas valve). If the tank empties and continues to heat, the elements will burn out, potentially causing a fire or damaging the unit.
A 10-minute shower typically uses 20 to 25 gallons of hot water. Because showers are usually mixed with cold and hot water to reach a comfortable temperature, the actual volume of hot water drawn from your heater will usually be slightly less, while a low-flow showerhead can reduce this amount by up to 50%.
If left completely unused, a well-insulated, standard tank water heater will keep water hot for 12 to 24 hours after being turned off, and it will remain comfortably warm for up to 2 days.
To prevent catastrophic leaks while you are away, turn off your home's main water supply valve, open a high faucet to relieve pressure, and turn off your water heater. This simple routine takes just a few minutes and protects your home from severe water damage.
It takes time for your home to warm up and cool down. If you're not sure how long it takes, try turning the heating on about 30 minutes before you need it. You should turn it off 30 minutes before you'll stop needing it.
Yes, you should absolutely shut off your main water supply when going on vacation in winter, especially if you are leaving for more than 24 hours. This prevents catastrophic flooding if a pipe freezes, breaks, or if an appliance hose fails while the house is empty, ensuring no new water can flow into the house.
If all of your water is turned off, the main pipe may be frozen. The water heaters will not drain if they are at ground level and there is no water flowing, so there's no need to worry about that. You might be able to locate the frozen pipe by checking outside.
To compensate for heat loss, you may need to slightly increase the water heater's thermostat setting during winter. The recommended temperature is between 120–140°F for most households.
2. Do I need to turn off my water heater when I leave? Yes. Either drain it or set it to “vacation mode” to prevent issues while you're gone.
When preparing for a vacation, focus on four key areas: water, temperature, electronics, and small appliances. Shutting off the main water valve, adjusting your thermostat, and unplugging energy-sucking electronics will prevent costly disasters and reduce your energy bill while you are away.
Most water heaters have a setting on their temperature dial labeled “VACATION” or, if that setting is not available, choose “PILOT.” This drops your water heater's temperature and reduces your energy consumption. Change your setting if you'll be gone for three or more days.
No, you should not drain your water heater for a standard vacation. Draining and refilling the tank is a major hassle and carries risks—like accidentally dry-firing electric elements. Instead, for optimal safety and efficiency, leave the tank full and turn it to its "Vacation" setting (or 120∘𝐹).
Shutting off the water supply does not immediately affect the water heater, but you must turn off the water heater's power source (breaker or gas valve). If the tank empties and continues to heat, the elements will burn out, potentially causing a fire or damaging the unit.
Even when you're not home, water is running through your house. Sometimes a water pipe fails at the toilet or washing machine and causes water to pour out. If you are not home, this can cause major flooding and severe water damage.
If you leave for a vacation anywhere from 1 to 28 days you can set the water heater to vacation mode. The tank temperature will stay heated at around 65°F (18°C). Furthermore, you can also set the water heater to hold. It will indefinitely hold the temperature you set it at while you are away.
Yes, you can absolutely take a shower, but the water temperature will depend on how recently the heater was turned off.
A 10-minute shower typically uses 12 to 25 gallons (45 to 95 liters) of hot water. The exact amount depends on your showerhead's flow rate and the temperature you prefer (as hot water is mixed with cold):
Some common causes of high water bills include:
The 4-minute shower rule is a sustainability and cost-saving initiative advising people to limit their daily showers to four minutes or less. This practice helps conserve water, reduce energy used for heating, and lower household utility bills by limiting consumption to approximately 36–40 liters (roughly 9.6–10.5 gallons) per shower.
A 20-minute shower almost always uses more water than a bath.