What Is an On-demand Hot Water Heater?

An on-demand hot water heater is an appliance for heating water only when hot water is needed. It is also referred to as a tankless water heater. This appliance does not require a storage tank or a standby need usually associated with always keeping a tank full of hot water.

It brings about a lot of convenience, cuts down on energy consumption, and removes the risk of tank leaks or water damage. Most on-demand hot water heaters are designed to last for about 20 years, which is longer than the traditional tank-type water heaters.

How Does An On-demand Hot Water Heater Work?

The advantage of an on-demand hot water heater is the elimination of a storage tank. As a result, there is a need for a system whereby hot water is produced on-the-go. The design of a tankless hot water heater features a process whereby when the hot water faucet is opened, cold water passes from a pipe into the unit and heated by electric heating device or a gas burner.

The hot cannot be exhausted its pressure may be regulated or limited. An on-demand hot water heater delivers between two and five gallons of hot water per minute. The gas-powered model usually has higher flow rates than the electric models.

What Are The Types of On-demand Hot Water Heater?

On-demand hot water heaters are categorized into two:

  1. Small unit on-demand hot water heaters
  2. Large group on-demand hot water heaters.

Small unit on-demand hot water heaters is installed precisely at or near the point of use while large on-demand hot water heaters can serve an entire building.

Due to its size, the small units prevent heat losses via the pipes because of its proximity to the point of use, but several units will be required to serve an entire building. Meanwhile, small unit on-demand hot water heaters can be used to complement the conventional water heaters for the bathroom or another point of use located farther from the main water heater.

Apart from eradicating loss of heat through long runs of piping, small on-demand hot water heaters save time and water characteristically wasted while waiting to water to get hot in the conventional tank hot water tanks. Large, “whole house” on-demand hot water heaters can supply hot water for a large number of points of use in a building. They eradicate heat losses from a storage tank, but some heat losses will occur through the hot water piping except it is insulated.

What Are The Benefits Of An On-demand Hot Water Heater?

On-demand water heaters, unarguably, have several benefits, and have become famous among homeowners, contractors, and plumbers over the years. Many homeowners have declared their support and preference for on-demand water heaters than the traditional tank units for reasons including but not limited to the following:

1. No More Cold Showers

On-demand water heaters deliver hot water to everyone in a home without running out of the supply. In a house containing 4 or more family members and a hot water tank installed, there will always be a competition for hot water, and at least someone will, unavoidably, have a cold shower because the tank will have run out of hot water.

An on-demand water heater eradicates such an unpleasant situation because it does not rely on a reserve of hot water in a tank; instead, the unit heats water on-the-go, instantly as water passes through the unit. Consequently, hot water is always available.

2. Constant Supply

Since on-demand water heaters produce hot water on-the-go, several tasks needing hot water can be performed in a house without running out of hot water supply. A washing machine, dishwasher, and about three more showers can be run concurrently, and the system will produce hot water continuously without running out. Tankless or on-demand water heaters are designed to handle the supply of high volume of distribution.

3. Longer Warranty

The traditional tank water heaters usually have a warranty of up to 10 years while on-demand water heaters have from 15 years to 20 years warranty. On-demand water heaters are an investment with a higher ROI because they add to the resale value of a home.

4. Saves Space

On-demand water heaters are about 20% the size of aIl tank unit. They can be installed on the wall and connected to the water mains. And because they are safer than tank heaters, they can be placed in areas where the tank units are recommended to be kept away from.

5. Water Conservation

An average conventional tank heater needs about 3 minutes to heat up water and 230 minutes to refill the reserve. However, on-demand water heaters do not need time to heat up or fill up, they provide hot water instantly. As a result, water that usually goes down the drain can be conserved since there is no waiting time to get the needed hot water.

6. Savings

On-demand, water heaters have a higher efficiency than tank water heaters and also use less energy and water. Besides, heat loss on the pipes is also prevented. Hence, you can save some cash every month, which will be a substantial amount, up to 30% or more annually.

7. Purer Water

Over time, the tank units become older and corrode and contaminate the water. However, this kind of problem does not arise with an on-demand water heater, which guarantees that you have cleaner water you can drink or bathe with.

With the benefits explained above, installing on-demand water heaters offer several benefits than using the tank units of hot water heaters. Experience the convenience, efficiency, and economic benefits offered by on-demand water heaters. Tankless hot water heaters guarantee everybody’s satisfaction, irrespective of the number of persons or tasks requiring hot water in a building.

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