The time it takes for water to heat up in a shower can vary depending on several factors, including the type of water heater, the distance between the water heater and the shower, and the initial temperature of the water. Here's a general guideline:
Tankless Water Heater: Tankless water heaters provide hot water on demand, so there is typically no need to wait for the water to heat up. Once you turn on the shower, the water should be hot almost immediately.
Storage Tank Water Heater: With a storage tank water heater, you need to wait for the water in the tank to heat up to the desired temperature. This process can take some time, especially if the tank is located far away from the shower. On average, it may take around 10 to 15 minutes for the water to reach the desired temperature, but it can vary depending on the size of the tank and the heating capacity of the water heater.
Recirculating Systems: Some households have recirculating systems installed that continuously circulate hot water, reducing the wait time. These systems can provide hot water almost instantly, eliminating the need to wait for the water to heat up.
It's important to note that if the hot water supply is limited, such as in households with small water heaters, multiple people using hot water simultaneously can deplete the available hot water, resulting in a temporary decrease in water temperature during the shower.
The specific time it takes for water to heat up in your shower will depend on your individual setup. If you're unsure about the waiting time, it's best to consult the manufacturer's instructions for your water heater or seek guidance from a professional plumber familiar with your system.