How Long Does It Take To Install a Water Heater? (Complete Guide)

Written by Tim Rhodes Last Updated: Dec 4, 2024

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Installing a water heater is a fairly simple and straightforward process that most people can do without too much trouble. There are a few things to keep in mind to make sure the job is done properly and safely. Here is a complete guide on how long it takes to install a water heater.

How Long Does It Take To Install a Water Heater?

It usually takes around two hours to install a water heater. This includes the time it takes to disconnect the old unit, install the new unit, and connect all the necessary plumbing and electrical connections. Of course, this can vary, depending on the model of the water heater.

Some installations may take longer depending on the specific model of the water heater and the difficulty of the installation.

If you are installing a gas water heater, you will also need to vent the unit properly. This may add an additional hour or two to the installation time.

Tools and Materials Needed To Install a Water Heater

Before you begin the installation process, it is important to gather all of the necessary tools and materials. Here is a list of what you will need:

• A water heater installation kit (available at most hardware stores)
• A hacksaw or other cutting tool
• A socket wrench set
• An adjustable wrench
• Teflon tape
• Plumber’s putty or silicon caulk
• A hammer or rubber mallet
• A level

If you are installing a gas water heater, you will also need:

• A venting kit (available at most hardware stores)
• A drill
• 1/2″ and 3/4″ drill bits

Once you have gathered all of the necessary tools and materials, you are ready to begin the installation process.

The Installation Process

This guide will walk you through the installation process of a water heater step by step.

Preparation

Before you begin, there are a few things you’ll need to take into account.

First, check the local building code to see if there are any requirements or restrictions on installing water heaters.

Next, decide what type of water heater is best for your home. Each type has its own set of pros and cons that you’ll need to weigh before making a decision.

Finally, make sure you have all the necessary tools and materials before beginning the installation process.

Installation

When you’ve taken care of the preliminary steps, you’re ready to start installing your new water heater. The first thing you’ll need to do is shut off the power to the area where you’ll be working.

Then, disconnect the cold and hot water lines from the old water heater.

Next, remove the old water heater from its location and dispose of it properly.

Now it’s time to install the new water heater. Begin by connecting the cold and hot water lines to the inlet and outlet connections on the new unit.

Then, secure the new water heater in place using straps or brackets according to the manufacturer’s instructions.

Finally, turn on the power and turn on the water supply to test your work.

If you followed these instructions carefully, your new water heater should be up and running in no time!

Safety Precautions for Installing a New Water Heater

Here are a few safety precautions to keep in mind while installing your new water heater:

• Shut off the power to the water heater before beginning any work
• Wear protective gear, such as gloves and goggles, while working
• Be sure to follow the manufacturer’s instructions carefully
• Do not over-tighten any connections
• Do not use any electrical appliances near the heater while it is turned on
• Make sure the area around the water heater is clear
• Test the water heater for leaks after installation is complete.
• Check the temperature setting to make sure it is not set too high
• Regularly inspect the water heater for signs of corrosion or leaks.
• Have it serviced by a professional every few years to extend its lifespan

Following these safety precautions will help ensure a safe and successful installation.

Is installing a water heater difficult?

Installing a water heater is not particularly difficult. Still, there are a few things to keep in mind to make sure the job is done properly and safely.

First, it is important to read the instructions that come with the water heater carefully. This will give you a good understanding of how the unit should be installed and what needs to be done.

Second, if you are installing a gas water heater, you will need to make sure the unit is properly vented. This is important for safety reasons and should not be overlooked.

Finally, when connecting the plumbing and electrical connections, it is important to make sure they are tight and secure. Loose connections can cause problems down the road.

Overall, installing a water heater is not a difficult task. However, it is important to take your time and make sure the job is done right.

If you have any questions or concerns, be sure to consult with a professional before beginning the installation.

How long do water heaters last?

The average lifespan of a residential water heater is about 10 years. But there are a number of factors that can impact the lifespan of your water heater and cause it to fail prematurely.

For instance, if your water heater is not properly maintained, it could rust or corrode, which would shorten its lifespan.

Additionally, if your home has hard water, the mineral deposits could also damage your water heater.

By taking good care of your water heater and performing regular maintenance, you can help extend its lifespan. You can also consider installing a whole-house water filtration system to protect your water heater from hard water damage.

How do I know if I need a new water heater?

You should keep an eye out for a few things that could indicate it is time for a new water heater.

If you start to notice any leaks coming from the unit, this is a big sign that it needs to be replaced.

If the water heater is over ten years old, even if there are no leaks, it might be time for an upgrade as well.

Another indication that it might be time for a replacement is if the water from your taps isn’t as hot as it used to be, or doesn’t last as long.

Lastly, if you can hear strange noises coming from the unit, such as banging or hissing, this means it isn’t functioning properly and will likely need to be replaced soon.

If you have any concerns that your water heater isn’t working properly, it is always best to call in a professional to take a look. They will be able to tell you definitively whether you need a new unit or not.

How much does it cost to install a water heater?

Installing a new water heater can be a big investment, but it will pay off in the long run by saving you money on your energy bills.

Electric water heaters are the most common type of heaters, and they’re also the most affordable. Gas water heaters are more expensive to install, however they’re less expensive to operate in the long run.

Tankless water heaters are the most expensive option, but they’re also the most efficient. They don’t store hot water like electric and gas water heaters, so they don’t waste energy heating unused water.

The cost of installing a new water heater will vary depending on the type of heater you choose and the size of your home. Electric water heaters typically cost between $600 and $1,200 to install, while gas water heaters cost between $1,000 and $2,000.

Tankless water heaters are the most expensive option, costing between $2,000 and $3,000 to install. However, they’re also the most efficient option, so you’ll save money on your energy bills in the long run.

No matter which type of water heater you choose, be sure to get quotes from multiple contractors so that you can compare costs.

The removal of your old water heater

Remove your old water heater according to the following instructions.

First, turn off the power to the water heater by flipping the switch on the circuit breaker.

Next, shut off the cold water supply valve and open up the hot water faucet to release any pressure in the tank.

Once the pressure is released, you can disconnect the water and gas lines. Be sure to label the lines so you can easily reconnect them to the new water heater.

Finally, use a strap or dolly to lift the old water heater out of its location and dispose of it properly.

Frequently Asked Questions (FAQs)

Here are answers to some commonly asked questions about water heater installation.

Can I install a new water heater myself?

Water heater installation is a complex process that requires knowledge of plumbing and electrical systems. If you’re not familiar with these systems, it’s best to leave the installation to a professional. Attempting to install a water heater yourself could result in serious damage to your home or even injury.

Are there any rebates or tax credits available for water heater installation?

Yes, there are rebates and tax credits available for water heater installation. The amount you’ll receive depends on the type of water heater you install and your location. For example, gas-fired tankless water heaters are eligible for a $300 federal tax credit, while electric heat pump water heaters are eligible for a $300 rebate from Southern California Edison.

How long does it take to install a 40-gallon water heater?

Installing a 40-gallon water heater usually takes two to three hours. This time frame can vary depending on the type of water heater you’re installing and the complexity of your home’s plumbing and electrical systems.

How long does it take to install a gas water heater?

It typically takes about three to four hours to install a gas water heater.

How long does it take to install a tankless water heater?

You will need about four to five hours to install a tankless water heater.

Final Thoughts

Installing a new water heater is a big investment, that will save you money in the long run.

Always get quotes from multiple contractors so that you can compare costs.

Be sure to follow the instructions carefully when removing your old water heater and installing the new one.

Also, don’t forget to ask about any rebates or tax credits that may be available in your area.

With a little bit of planning, you can have your new water heater installed in no time!