How to Prepare for the Installation of a Small Electric Tankless Water Heater

How to Prepare for the Installation of a Small Electric Tankless Water Heater

A homeowner who needs a new water heater faces several factors when choosing the right unit. These include assessing the household’s hot-water consumption and available electrical capacity. It is also advisable to consult with a professional.

A small electric tankless water heater offers several benefits, including easy installation and low energy costs. It is ideal for homes with limited space for storage-type heaters. Its self-modulating technology adjusts power consumption according to demand.


The price of tankless water heaters varies depending on the size and type. For example, whole-home units that provide hot water for a large household tend to cost more than smaller point-of-use models. The installation cost also plays a role in the price. The plumber’s rate, supplies and any required permits are important factors in determining the final price of the project.

The energy type also impacts installation costs. Electric tankless models are typically less expensive than gas-powered ones. However, a gas-powered unit requires gas lines and ventilation systems, which can increase the cost of the overall project. In addition, a condensing unit is more efficient than a non-condensing model and can lower your utility bills over time.

Another factor that impacts the price of a tankless heater is its capacity. The more gallons per minute (GPM) it can produce, the higher the price. A plumber can help you determine the perfect capacity for your household by asking questions such as how many people live in the home and what are their typical hot water usage habits.

In some cases, installing a tankless water heater requires carpentry work and drywall repairs. This adds to electric instant water heater for shower the overall cost of the project, as does removing and disposing of the old water heater. It’s always best to hire a professional, as improper installation can cause leaks or even release carbon monoxide.

Energy efficiency

While they may cost more upfront, tankless water heaters can pay for themselves with long-term energy savings. In fact, the EPA estimates that gas and electric tankless heaters can save homeowners $108 to $44 per year.

Unlike storage tanks, tankless models use less energy because they only heat water on demand. They also have a lower carbon footprint, since they don’t require fossil fuels to operate. Additionally, they’re more compact and don’t take up as much space in a home or business.

Most manufacturers offer a variety of power levels, from 6.5kW to 18kW. The higher the wattage, the quicker it can heat up and the more hot water it can supply. A licensed electrician or plumbing and heating contractor can help you determine the right wattage for your needs.

Tankless electric models are 90 percent smaller than their tank-style counterparts, which allows them to be installed at the point of use. This allows them to provide hot water within seconds. They can even be paired with a recirculation pump to further reduce waiting time.

The biggest consideration for tankless electric models is that they’ll need to be connected to a 240-volt electrical circuit. If your home’s electrical system is not able to accommodate this, you will need to upgrade it. However, it’s a small price to pay for the added efficiency and convenience.


The installation of a tankless electric water heater can be a complex project for homeowners. However, proper preparation can help the process run smoothly and save money in the long run. Before you begin, it is important to gather all the necessary tools and materials. It is also helpful to consult an expert for assistance in some cases. A professional will be able to provide guidance and support during the entire project.

Before installing your new tankless electric water heater, make sure that the circuit breaker is switched off and that the electricity cables aren’t powered on while you work. You should also disconnect any cables that connect the front cover and the unit. Then, carefully unscrew the cover and remove it. Afterwards, you can mount the unit on the wall in a convenient location and follow the directions in the instruction manual.

Once you’ve finished mounting the unit, you’ll need to connect the water supply lines. You should use a GFCI outlet to protect the circuit and prevent electrical problems. Also, you should install the flow and pressure valves according to plumbing regulations. Finally, you should position the unit in a safe and accessible place for easy access during maintenance or repairs. This will help avoid any future problems. In addition, it will ensure the safety of your family and reduce energy bills.


Getting the right size tankless water heater can save you money in the long run. This is because a bigger unit will use more energy than necessary. It will also require more maintenance and electric tankless water heater repairs than a smaller unit. This is because you will need to flush it more often to remove sediment buildup. You should also change the filter regularly to prevent it from becoming clogged.

Another important part of tankless water heater maintenance is ensuring that there is adequate ventilation. This is important because harmful gases such as carbon monoxide can build up and pose a health risk. Moreover, proper ventilation helps to dissipate heat and reduces the chance of overheating.

You should also check the electrical connections to make sure they are in good condition. If they are loose, you should tighten them. Additionally, you should test the water flow rate to ensure that it is consistent and within the recommended range. You should also verify the temperature settings to ensure that they are correct.

If you notice that your tankless water heater is not working properly, it is a good idea to flush it. This is a simple process that requires turning off the power and gas supply to the unit. Once you have done this, disconnect the hoses and connect them to a bucket. Then, pour in a gallon of vinegar and turn on the pump.

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