Are you fed up with using water as you wait for it to be hot? Don’t waste any more water by installing an under-sink tank-style or tankless water heater.

However, if your home already has a central heater, then isn’t an under-sink water heater unnecessary? Perhaps, if the distance from the water heater to the sink is less. If it’s not an issue, the water heater in the sink could be an asset that saves water.

Take this into consideration for a moment: In the event that the water flow of your faucet is 2 gallons every minute (which is typical) and you need to wait 30 seconds to get hot water, you’ll waste one gallon of water each time. If you drink the hot tap three times per day, it could mean you are flushing 600 gallons of water into the drain each month. A water heater under the sink can stop that.

What Is an Under-Sink Water Heater?

A water heater under the sink or a point-of-use water heater is a smaller version of a full-house water heater, which provides instant hot water right at the sink.

Since they’re designed for cramped living spaces, tanks-style under-sink water heaters are limited in storage capacity, ranging between two and a quarter to four gallons. The flow rate is contingent on the main plumbing; however, most are able to manage up to three gallons per minute.

Under-sink water heaters are connected to the main cold or hot water supply. If the water heater is the only source of hot water, it is hooked upwards to the cold water supply. If it is able to make hot water more readily available, it’s normally hooked up to the hot source.

Types of Under-Sink Water Heaters

Under-sink water heaters are electric, but they differ in a variety of ways:

• Tank or tankless: Tanks hold an unending quantity of hot water; however, they may need periodic cycles so that it stays warm. Tankless models on demand come off only when there's a demand for water. It typically uses more power than tank-style models.

• Voltage: They are available both in 120- and 240-volt versions. Because they require faster power, some require 240 volts. Meanwhile, tank-style models usually require 120 volts. Models operating at the lower voltage generally include plugs, whereas those with higher voltages are wired with a hardwire.

• Standing in contrast to hanging: Tank-style water heaters usually sit on the lower part of the cabinet, whereas on-demand models hang from the sides.

How Much Will an Under-Sink Water Heater Cost?

The prices range between $50 and $300, without including the installation cost, which is $100-$200 based on the hourly rate of the plumber. There are also a few additional items, including supply lines (inexpensive) as well as a new electric circuit for the sink if there’s no one in the area (costly).

Installation by yourself is an option. Check out the following:

Advantages and disadvantages of Having an Under Sink Water Heater

Instant hot water offers additional advantages:

• Reduced water waste
• It is convenient for cooking or cleaning.
• It’s not that expensive and is easy to set up.
• Maintenance-free and low-to-no-maintenance.

A few of the disadvantages that you should take into consideration:

• A higher electric bill
• Storage space is reduced under the sink
• Temperatures fluctuate in the water, especially in models that are on-demand
• There is a limited availability of hot water specifically for models that are tank-style. You may run out.