Is Your Water Heater Taking Too Long to Heat Up?

Is Your Water Heater Taking Too Long to Heat Up?

Published on : March 29, 2023

Imagine a scenario where you are in a hurry to reach your office on a busy Monday morning. You switch on your storage water heater to take a hot shower and need to wait. But you are still greeted by cold water when you open the bathroom tap after ten minutes. Will this not turn out to be an annoying situation for you?

Sometimes, water heaters can take quite a long time to deliver hot water. Contact a professional who will be able to provide the exact solution.

Here are a few reasons for your water heater to take a long time to heat water.

1. Check the tank for sediment build up.

Storage water heaters are equipped with a tank to store hot water. However, sometimes, mineral-based sediments can accumulate at the bottom of the tank and can impact the capacity of the water geyser to deliver hot water. It blocks not only the passage of water but also lowers the water storage capacity of the water heater.

If there is a sediment build-up in your hot water heater, you can call an expert plumber to check and clean the tank. This will boost the flow of water.

2. Check the temperature settings of your water heater.

Modern water heaters allow you to change the temperature settings as per your requirements. You can adjust a knob present on the body of the geyser to modify the temperature settings. Some water heaters also allow you to choose from various modes as per your usage, such as shower mode, bathtub mode, kitchen mode, etc.

So, if your water heater is taking too long to deliver hot water, you should check its temperature settings. Sometimes, this problem can occur for as simple a reason as the wrong temperature setting on your hot water heater.

3. Ensure the correct placement of the water heater.

Incorrect placement of a water heater can also impact its efficiency in delivering super-fast hot water. The more distance water must travel from the pipeline to the geyser tank and then back to the pipeline, the more time it takes to receive hot water. So, ideally, your hot water heater should not be installed too far from the entry points and taps.

In case you feel this is the reason why your geyser is taking too long to deliver hot water, you can call a plumber to change the placement of your water heater.

Selection of right water heater model is also key to getting continuous hot water. To arrive at the decision of buying the right water heater for your bathroom, consider the wattage as well the capacity.

I. Opt for a higher wattage.

Typically, storage water heaters have a wattage of 2kW. Selecting a 3kW water heater will speed up the heating time by 33%. A 3kW water heater will consume the same amount of energy in comparison to a 2kW water heater. Ensure that the house is equipped with right wire sizes and sanctioned electrical supply to support higher wattages.

II. Select the right capacity.

Storage water heaters are available from 6 litres up to 200 litres. Higher the capacity, higher the time it takes to heat the entire volume of water. Selecting the right capacity based on usage habits and members in the household will ensure that optimum time is consumed to heat the exact requirement of water.


Delays in getting hot water can be extremely frustrating, especially during the winter season. The simple tips mentioned above can help you fix any issues with your water heater and get it running as it should. If your hot water heater is more than 10 years old, it would be advisable to replace it with a new one.
A. O. Smith offers a range of water heaters for bathrooms, kitchens, restaurants, and other utilities. Browse through our range and select one as per your requirements.


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