Although you rely on your water heater throughout the year, probably every day, it does more work for you during the winters. On a chilly morning, a hot shower feels better than ever—and it can also be a wonderful relief to soak in a hot bath at the end of the day.
So what do you do if the water heater isn’t as warm as it should be? The simple answer would seem to be an adjustment to the thermostat for the water heater (which is called an aquastat). The default temperature for most water heaters is 140°F, although homeowners often lower it to 125°F or 120°F to help conserve energy. If you’ve lowered the temperature during the rest of the year and wouldn’t mind having it back up to the default, then it’s fine to put it back to 140°F.