Emilie Meyer
Water heaters sometimes leak, and a drip pan can help prevent water damage in the event of a slow leak. Installing a drip pan for a water heater is a simple task that can be completed in under an hour. It involves cutting the electric or gas supply to the heater, shutting off the water supply, and detaching the pipes. The heater should then be lifted or tilted to drain the water, and the drip pan slid underneath. The heater is then lowered back into position on top of the pan, and the pipes reattached. PVC fittings can be used to attach pipes that will dispose of the water collected in the pan. Finally, the heater can be turned on to test if the pan has been installed correctly.
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What You'll Learn
Prepare the water heater and drain pan
Before installing a drip pan for a water heater, there are several preparatory steps that you must take to ensure both your safety and the successful installation of the drip pan.
Firstly, you must cut the electric supply to the water heater. If your water heater works on gas, be sure to turn off the gas supply as well. This is an important safety step as it will prevent any accidents or injuries during the installation process.
Next, you will need to shut off the water supply to the water heater. Locate the water pipe and turn it off. This step is crucial as it will prevent any water from flowing into the heater while you are working on it. Detach all pipes and earthquake straps connected to the heater. This will make it easier to lift the heater and access the area where the drip pan needs to be installed.
Now, carefully drain the water from the water heater. This step is important to lighten the load when lifting the heater and to prevent water spillage during the installation process. Remember that the water may be hot, so exercise caution when draining it.
Once the water is drained, you can begin to lift the water heater cautiously. Depending on the size and weight of the heater, you may need additional help from one or more people to safely lift and secure the heater. Place the drip pan under the heater, ensuring that the pan's drain opening is oriented correctly. You may need to rotate the heater and the pan to achieve the correct alignment.
Finally, before securing the heater and pan in place, you can choose to waterproof the drywall behind the water heater. Although this step is not mandatory, it provides an additional layer of protection in case of any future leaks.
By following these steps, you will effectively prepare your water heater and drain pan for installation, ensuring a safe and successful process.
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Cut the water heater's power supply
Before installing a drip pan for a water heater, it is important to cut the water heater's power supply for safety reasons. This is the first step in the installation process.
If your water heater has a power switch, simply turn it off. Next, locate the circuit breaker and turn it off. Many water heaters have two circuit breakers, and some use a 240-volt supply, so both breakers must be shut off. If your water heater is a hybrid model with a power cord, disconnect the cord from the 120-volt outlet.
It is also important to locate and close the cold water supply line valve, which is usually situated close to the heater. If you need to drain the water heater, ensure you disconnect the heater from the power supply before opening the drain valve.
As a safety precaution, you should also inform everyone in your household that you are working on the electric system and ask them not to touch the service panel. You can use tape and markers to indicate that the power should not be turned back on. Additionally, use a voltage tester to ensure that no power is flowing before you begin working.
Cooling down the water inside the tank is also necessary before you shut off the water supply to the hot water tank. To do this, turn on a hot faucet and let the water run until it feels lukewarm.
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Drain the water heater
Before installing a drip pan for a water heater, you must first drain the water heater. This process can be done in a few steps.
Firstly, turn off the water heater and shut off the gas or electricity supply, depending on your water heater's power source. If your water heater runs on gas, shut off the gas valve before the water heater. If your water heater is electric, unplug it. Next, shut off the cold water inlet valve to the water heater. This will prevent any more hot water from being produced.
Now, you must wait for the water in the heater to cool down. This can take 20-30 minutes, depending on the heat of the water and the material of your garden hose. Once the water has cooled, attach a garden hose to the spigot of your water heater. You can then direct the other end of the hose outside or towards a drain.
The next step is to open the water valve with a screwdriver to start draining the water. If the water flow is very slow, open the Water Heater Pressure Relief Valve (PRV) to let air into the tank and speed up the drainage. You can also open all the hot water taps in your house to help drain the water faster.
Note that the water at the bottom of the water heater will be dirty with sediment, so it is important to ensure that this is drained out first and that the water heater has been regularly cleaned.
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Position the drain pan
Positioning the drip pan under your water heater requires careful planning and execution. Here is a step-by-step guide to help you with this process:
Firstly, ensure the water heater is elevated securely. You can use a jack to lift the heater, and it is recommended to have helpers, as the water heater tank can be heavy and awkward to handle. Once the heater is lifted, you can slide the drip pan underneath. If your drip pan has a detachable front, this step will be easier, as you can slide the pan under the heater and then rotate it so that the detachable side faces the front.
Next, you will need to position the pan so that the drain opening is oriented correctly. Reference the water heater, not the floor, to ensure the alignment is correct. You may need to gently rock or jiggle the heater to get the pan's drain centred and aligned. If you need to rotate the water heater, the pan will likely rotate with it, so keep this in mind when positioning the drain opening.
After you are satisfied with the positioning, you can gently lower the water heater back into place, ensuring it is secure and stable. Now, you can proceed to attach the necessary pipes and fittings to the drip pan to facilitate the disposal of collected water. Remember to follow local plumbing codes and regulations when installing these pipes.
It is important to note that this process is more accessible when installing a new water heater. If you are adding a drip pan to an existing water heater, it may be challenging to physically position the pan, and you may need to take extra steps, such as draining the water heater completely before attempting to lift it.
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Re-attach the water heater and pipes
Once the drip pan is in place, you can begin to re-attach the water heater and pipes. First, you will need to reconnect the water pipes. Ensure that the water supply to the heater is turned off before doing so. If your heater is gas-powered, make sure the gas supply is also shut off.
Next, you will need to reconnect the hot and cold supply lines. These should be detached before removing the old drip pan or water heater. It is recommended to replace these lines if they are old or leaking. You should also reconnect the earthquake straps that were previously connected to the heater.
If you have a TPR copper discharge pipe, this will need to be soldered before reattaching. You will also need to reconnect the venting and hood, which is necessary when replacing the water heater.
Finally, you can reconnect the power supply to the water heater. For an electric heater, this means reconnecting it to the electricity supply. If your heater is gas-powered, ensure that the gas supply is turned back on.
Always exercise caution when working with electrical or gas appliances. If you are unsure about any part of the process, it is best to consult a qualified professional.
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Frequently asked questions
Before installing a drip pan, you must cut the electric supply to the water heater and shut off the water supply. If your heater works on gas, ensure that the gas supply is turned off. Detach the pipes attached to the heater and drain the water.
A drip pan with a detachable front can be slid under the water heater without having to lift it completely. After sliding the pan under the heater, rotate it so that the detachable side is at the front.
Once the drip pan is under the water heater, position the pan so that the drain opening is oriented correctly. You can then gently rock or jiggle the heater to get the pan and its drain centred and aligned.
After placing the drip pan, gently put the elevated heater back in position on the pan. Locate the PVC fittings on the side of the pan and use PVC cement to glue the fixtures like elbows and couplings. Attach a PVC strap to hold the pipe in place. Finally, re-attach the pipes to the water heater.
