During winter, your entire plumbing system, including your water heater, is affected by the colder weather. When exposed to lower temperatures, water heaters endure a lot of strain as they work longer and harder to provide an adequate supply of hot water.
Just so, does main water line go to water heater?
Next, in the house, the main water connects to the water heater. At the water heater, the water line splits in two. One branches off for cold water, while the other stays connected for hot water. The cold water line splits from the water heater, and directly has connections to each water appliance.
Beside this, why is my water heater not getting hot enough?
Sediment build up in the tank
Over time, sediment can build up in the bottom of the tank, where the burner usually is. This can lead to slower heating or poor efficiency in your water heater, meaning lukewarm water rather than hot water. The solution for this is to drain the tank and to use a water softener.