Average Water Heater Installation Timeline
The installation duration will depend on the model of water heater you select. Understanding this timeline will help you schedule your day appropriately.
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Standard Tank Water Heater Installation
When replacing a water heater with the same height and model, the average time is 2-4 hours for a standard tank water heater. Time is short, since the plumber is using all the existing connections. They are simply removing the old unit, replacing it with the new unit, and testing it.
The removal process itself takes about 45-60 minutes. This includes draining the existing hot tank, disconnecting the water lines, and carefully removing the unit. Placing the new water heater takes 30 minutes. The remaining hour will include connecting the lines, tightening and checking the fittings, and the final test.
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Tankless Water Heater Installation
How long does it take to install tankless water heater units? Installing them typically takes longer than installing electric resistance or traditional tank heaters. Tankless installations usually require 4-10 hours, depending on complexity. Some complex installations can take up to 15 hours. The additional time is primarily due to the need for new venting, modifications to existing gas lines, and possible electrical upgrades.
You should expect 4-6 hours of plumbing time to switch from a traditional tank heater to a tankless system. It will require new power lines, new hot and cold-water connections, and proper venting. Also, the unit will be wall-mounted at a specific location. It requires careful calibration of the tankless unit. Proper configuration will ensure the systems are energy-efficient.
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Heat Pump Water Heater Installation
Heat pump water heaters are gaining popularity because they are generally more energy efficient. They typically take 4-8 hours to install. Their installation is similar to that of electric resistance water heaters. Most installations can be done in one day.
Heat pump systems require ample outside space to extract heat from the air. Its need for space affects placement and installation. Your plumber will take this into account during the initial visit.
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Installation for a First Time and System Change
For a first-time water heater installation, it will take approximately 6 to 10 hours to complete. During this period, all installations (plumbing and electrical) will be completed. A first-time installation includes fitting new connections from scratch. The plumber will need to run new plumbing lines and ensure that the venting meets safety standards.
Suppose you are changing your appliance from one type to another (e.g., tank to tankless). In that case, the job will take a bit longer. Switching to a hybrid, solar, or tankless system will also increase the time required for replacement. Each system type has specific requirements that must be accounted for.
What Affects the Installation Time of a Water Heater?
A few factors affect the time it takes to install water heater systems. Understanding these factors will help you prepare for the installation.
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Water Heater Type
A traditional tank-style water heater will take less time to install than a tankless unit. The latter requires additional venting and gas lines for gas-fired systems. That added complexity could add a few hours. Another factor that increases time is switching from a gas water heater to an electric one, or vice versa.
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Location/ Accessibility
The location of the heater matters a lot. Access to a better location is obviously advantageous. Limited access results in more work and wasted time, as well. If your current water heater is in a difficult-to-reach location, that could add time to the removal process.
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Current Plumbing Conditions
The existing plumbing in your house can also affect how long it takes to install a new heater. If it requires any updates or repairs to make it ideal, that wouldn’t work within the scope of the job and would add time.
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Permits/ Inspections
In some areas, you must arrange for the permits before installation can begin. This adds more time to the overall installation work that starts before the plumber arrives. Keep local building codes in mind. Your plumber will handle the requirements, but that will affect timing.
Step-by-Step Breakdown of the Installation Process
Knowing the process provides clarity on how long it takes to install a water heater. Below is the typical process, with a breakdown of each stage.
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Initial Assessment and Preparation
A technician visits your home to examine the circumstances. This typically takes about 30 to 60 minutes of their time. They will look at your current water heater and discuss options with you. You will receive a thorough price proposal and timeline.
When examining a water heater, a plumber considers several crucial factors. First, the plumber measures the available space and reviews access routes. The technician will also inspect your connections. Water lines, gas lines, electrical supply, and so on. They will also review and present local building codes.
They will also assess whether you need any upgrades. Standard upgrades include an expansion tank, earthquake straps, proper venting systems, and a new electrical panel. Lastly, they will also verify whether your home’s water pressure and supply lines can accommodate the new unit.
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Shutting Down the Old System
Before removing the old system, the technician takes the time to safely shut down and drain your old water heater and electric systems. For electric units, they will shut off the circuit breaker or pull the fuses. For gas units, the gas supply valve will be in the off position.
The cold-water supply valve is shut to stop water flow and prevent flooding during the removal process. The plumber opens a hot water tap (faucet) nearby to relieve pressure in the system. This step is essential for safely draining the unit.
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Removal of Old Unit
First, it’s necessary to drain off the old heater. The plumber will attach a garden hose to the drain valve on the bottom of the tank. The other end is directed to a floor drain or outside. They open the drain valve carefully to prevent splashing.
Depending on the size, draining a full tank takes between 20 and 45 minutes. A standard 40-gallon tank weighs considerably when full. Once drained, they will disconnect all connections, including water/gas lines/, and electrical lines and wiring.
The technician will then disconnect the pressure relief valve from the unit and, if present, the discharge pipe. They will also remove any mounting brackets or straps securing the unit. The technician can then safely physically remove the unit from its location. Depending on accessibility, this step typically takes between 30 and 60 minutes.
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Installation of New Water Heater
Position the new water heater tactfully. For tank models, install a metal drain pan. It should be at least 2 inches wider than the unit. This acts as a catch for any leaks and protects your floor. The plumber uses a spirit level to confirm that the new water heater is level. A fully levelled unit will allow for the most efficient operation of the water heater. Moreover, it will prevent premature wear.
For wall-mounted water heaters, such as tankless heaters, mounting brackets are secured to wall studs. They lift the water heater and align it level with those brackets. The plumber will then secure heat trap fittings to the cold and hot water connections. Heat traps prevent heat from escaping through the pipes.
Teflon tape will wrap all threaded connections to prevent leaking. Also, a variety of adapters will secure the cold-water inlet and hot-water outlet pipes, as necessary.
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Connecting Utilities and Safety Devices
The pressure relief valve will fit in its designated socket to prevent a dangerous pressure buildup. Also, a 3/4-inch discharge pipe will be installed to relieve pressure. The discharge piping will slope down and end 1 to 6 inches from a floor drain. The code requires the discharge to be located in the appliance area for inspection.
For gas water heaters, the technician will connect the gas supply line. Installation kits include flexible gas connectors, which make this easier. Every gas connection must be tight and leak-free. The plumber applies dish soap or a bubble solution to detect a gas leak. If bubbles are present, there is a leak —calling for immediate connection repair.
Bring in dedicated electrical wiring for electric models. The heater will need a dedicated power supply for proper grounding if no power is available. All wiring is secured and insulated in accordance with electrical codes. They will use a circuit tester to guide the electrician and ensure the connection is correct.
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Filling and Testing the System
Once everything is hooked up to power, open the cold-water supply valve to fill the tank. The plumber will remove the aerator from the nearest hot water faucet. After that, they will turn the hot tap to full blast and let it run for 3 minutes. This is purging all the air out of the tank and lines.
While the water is flowing, the technician will inspect all of the connections for leaks. Starting at the water connection to the heater, all the way to the faucet, the joint where all pipes connect, the valve connections, and the pressure relief valve are checked.
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Final Inspection and Quality Checks
The technician performs a thorough final inspection. They check that all connections are tight and there are no leaks. They recheck gas connections using a soap solution. They test the pressure relief valve. They inspect venting systems to ensure proper venting.
The technician will demonstrate how to operate your new water heater. They will explain the controls, temperature settings, and safety information. You will also receive maintenance recommendations and warranty information.
Tips To Follow After Your Hot Water Heater Installation
How soon after installing a water heater should you check it and keep an eye on it? Here are some helpful tips to follow after your heater installation is complete. These will ensure it operates well and lasts for many years.
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Keep An Eye On It At First
In the first couple of weeks after your install, watch your water heater closely. Look for unusual sounds, leaks, or discoloured water. Popping sounds can be due to sediment buildup, while hissing signals that you may have pressure issues. Call your plumber at the first sign of trouble. Don’t take leaks lightly. Even the tiniest leak can cause massive water damage over time.
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Schedule Regular Maintenance
Annual maintenance of your water heater by a skilled professional helps it operate well and possibly for the entire life. With adequate upkeep, water heaters can last 8 to 12 years. Make sure to check the anode rod, flush the tank, and inspect the pressure relief valve. Visually check your water heater once a month for rust, leaks, or corrosion.
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Flush Your Tank Regularly
With hard water, you should flush the system every 4 to 6 months. Sediment buildup in your tank reduces efficiency and can damage the system. To flush the tank, attach a hose to the drain valve and let the water run until it runs clear.
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Inspect and Replace the Anode Rod
The anode rod extends the tank’s life by preventing rust by corroding itself first. Thus, an annual assessment is necessary. If the anode rod is heavily corroded or less than half an inch thick, replace it. The majority of anode rods need to be replaced every 3 to 5 years. If you are using hard water, replace the anode rod every year.
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Know Your Warranty
Read the warranty terms and conditions and be sure to register your unit with the manufacturer. For your warranty to be valid, ensure a professional supervises the installation. Be sure to keep all receipts and documentation for maintenance and repair.
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Make Temperature Adjustments
Be sure that your water heater is set to 120 degrees Fahrenheit. Setting the temperature at this level will help reduce scalding, lower energy costs, and prevent bacterial growth. If you have an electric water heater, adjust the thermostat dial after the power is off. If you have a gas water heater, adjust the thermostat on the gas valve.
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Insulate Pipes and Tank
Wrap any exposed pipes with foam sleeves to help reduce heat loss. It will help keep the water hot for a more extended period and improve delivery speed. Consider using an insulation blanket for your tank, especially if you live in a cooler climate.
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Examine the Pressure Relief Valve
You should test this safety device twice annually. If you lift the lever slightly, you should hear water gurgling through the discharge pipe. If not, call a plumber for service.
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Keep the Area Clean and Free of Obstructions
You should also keep a clear area around your water heater. Do not store flammable objects or materials in this space. In addition, you should inspect the area for dust, debris, or spider webs that could obstruct venting.
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Track Your Energy Bills
After installation, continue to monitor your energy bills. If they keep rising, this could indicate excessive sediment buildup, a failed anode rod, or an electrical problem with the thermostat. Call your plumber if you notice a sudden difference in your bills.
Your Trusted Partner for No-Hassle Junk Removal
How long does it take to install a water heater? The answer depends on your water heater type and whether it is a replacement or a first-time installation. Also, it could take longer or shorter, depending on the heater type and your provisioning.
Always opt for a professional installation instead of trying to do it yourself. Licensed plumbers have the tools, experience, and know-how to do the job safely. In addition, they ensure the work is done correctly and in compliance with building codes, so your warranty remains valid. No matter how you have your unit installed, you can expect it to take a few hours to complete. However, you will have hot water for years.
After your new water heater is installed, you will still have to deal with your old unit. Those heavy, bulky tanks are a pain to deal with, and they can’t sit outside at the curb. Let Desert Dogs handle debris removal for you —let the professionals handle it.
