Choosing the right water heater size is very important, as this can affect the purpose of using a water heater and the monthly electricity bill.
There is no direct way to tell what water heater size is perfect for your family, as multiple factors are involved.
This Water Heater Size Chart is our attempt to provide an easy-to-use tool to determine the right water heater size based on different common factors.
Why Do We Need A Water Heater Size Chart?
Buying a water heater that supplies less water than required will spoil the purpose of using a water heater.
On the other hand, if you buy a water heater that supplies more water than required, you will end up wasting more electricity and an inflated monthly electricity bill.
That is why you must understand the requirements, choose how many members will use the water heater, and decide what purpose you need a water heater for.
Factors That Affect The Water Heater Size Decision
There are multiple factors that you need to consider before you decide on a water heater. Our chart also finds most of the points mentioned below.
Space
If you have less space, there are no options except choosing an instant water heater with a 3-5 liter capacity.
Storage water heaters generally range in capacity from 10 to 30 liters and occupy more space. So if space is essential for you, stick to 3-5 liters of instant geysers.
Family Size
For a small family size of 3-4 members, instant water heaters with up to 5 liters of capacity are more than sufficient, considering you will not use a shower, as a shower consumes a lot of water, and a 5-liter water heater can not serve hot water to all 3-4 members.
For showers, you need to use storage water heaters of at least 10 liters capacity.
Time Consumption
If you need instant hot water, 3-5 liter capacity instant water heaters are the best. The benefit of instant water heaters is that you do not have to wait; they have neon indicators that let you know when your hot water is ready.
For storage water heaters, you must wait at least 10 minutes to get hot water.
Intended Use
Water heaters can be used to take a bath, shower, or even wash utensils. You need to decide what is the purpose of using a water heater.
For baths using buckets, a small capacity water heater is sufficient. But if you plan to shower, you need a higher-capacity geyser. So compile your requirements first and then decide on the water heater size.
Water Heater Size Chart
Here is a simple chart showing different water heater sizes based on various use cases.
Advantages Of Using This Water Heater Size Chart
- You will never run short of hot water, as you have chosen the correct size water heater.
- You will get a predicted electricity bill without any surprise
- You will waste less power
- Improves the longevity of the water heater
FAQ | Water Heater Size Calculator
What Water Heater Size Do I Need For A Family Of 4?
Water Heater Size depends on many factors. So it is difficult to conclude the size without knowing your requirements.
If we consider a prevalent case scenario of a 4-member family, an instant water heater with 5 5-liter capacity is enough, thinking you are taking a bath using a bucket.
Shower wastes a lot of water. So if you plan to take a shower, then you need a storage water heater of at least 10 liters capacity.
