When you turn the hot water tap on, the flow turns on a heating element that heats the water as it runs through copper tubes. Last Updated: December 30, 2020 Cut out the pipe and make sure that the removed portion should be in the middle of the water carrying a pipe. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. What do I do if I have a recirculating pump? References. To create this article, 24 people, some anonymous, worked to edit and improve it over time. Looking at a new energy efficient model would be a wise choice and an electric water heater could save you money in the long run. wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. Install the T&P discharge pipe to the T&P valve. A. O. Smith electric tankless models perform with high efficiency ratings and groundbreaking designs. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/b\/bf\/Install-a-Tankless-Hot-Water-Heater-Step-1.jpg\/v4-460px-Install-a-Tankless-Hot-Water-Heater-Step-1.jpg","bigUrl":"\/images\/thumb\/b\/bf\/Install-a-Tankless-Hot-Water-Heater-Step-1.jpg\/aid44785-v4-728px-Install-a-Tankless-Hot-Water-Heater-Step-1.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

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\n<\/p><\/div>"}, How to Install a Tankless Hot Water Heater. If in doubt, call your local city building code enforcement or utility company. If you want to install a tankless water heater on the outer panel, carefully cut out the previous unit and measure the hole if it fits up for your new tankless water heater. Hold the hose to the pipe (allow for a little slack) and mark and cut the pipe. While this may sound expensive, point-of-use tankless heaters can actually save you money if you use them correctly. we currently utilize a 60 gallon electric tank heater that seems adequate to our needs. https://www.thisoldhouse.com/ideas/read-you-buy-tankless-water-heater, https://www.familyhandyman.com/plumbing/valves/how-to-locate-your-gas-shutoff-valve-and-water-shutoff-valve/, https://www.budgetdumpster.com/blog/how-to-dispose-water-heater/, https://www.thisoldhouse.com/how-to/how-to-install-tankless-water-heater, https://www.ronhazelton.com/projects/how_to_install_a_tankless_water_heater, https://www.familyhandyman.com/plumbing/7-tankless-water-heater-myths-you-need-to-stop-believing/, consider supporting our work with a contribution to wikiHow. All tip submissions are carefully reviewed before being published, Make sure your water pressure is sufficient for a tankless system. Modern traditional, gas-powered water heaters are not installed in a home with tankless retrofitting in mind. Thanks to all authors for creating a page that has been read 286,184 times. When the electric tankless water heater will be in place. 1. Label the wires with tape to mark how they are connected. They are small and occupy less space because they don’t have tanks to store the water. Due to the small size of your water heater, it can be mounted in many small spaces, including closets, under sinks, in pantries, or under stair storage areas. If you have water on the floor or on top of the unit (this is different from water leaking from a supply line above the unit), you’ll probably need a new water heater. It will also cause deposit build up in the tankless system. Switching to tankless water heaters isn’t that hard! If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. Shut OFF the cold water supply to the water heater. How can I insert batteries in the geyser? Tankless water heaters cost around 2-3 times more than traditional storage tanks. Select your region. Be aware that there will be a slight delay for the hot water to arrive at your fixtures and that the money saved in standby loss is offset by the higher cost of equipment, gas pipe, flue pipe and materials. Some areas require a licensed plumber and/or electrician before working on plumbing and electrical systems. Remove the junction box cover and connect the green ground wire to the green ground screw. EVERYTHING you need to know about electric tankless water heaters! If you’re in a particularly cold spot, we recommend rounding your supply needs up by at least 30%, closer to 50% if you like to be absolutely assured of having supply. They stand on the floor or cabinet bottom or mount to a wall or cabinet side with a bracket. Hard water will cause a deposit build up inside the tank of your traditional tank water heater, which will cause problems. Tankless heaters are great, and they do eliminate the risk of an exploding tank. Most install in the cabinet under the sink or very near it. If it is an under-$200 tank then yes, but if it is over that price then no, it will be over 2 and 1/2 years until you should start noticing any problems. If your water heater does not have power, be sure to, Best 50 Gallon Electric Water Heaters: Our Top Picks, Here’s What To Do If Your Air Conditioner Keeps Running When Turned Off, Tips For Home HVAC Maintenance During Every Season, Bradford White 40 Gallon RG240T6N Water Heater Review, Buying Guide for the Quietest Garbage Disposal, 7 Common Causes for Your Water Heater Making Noise, AC Evaporator Coils: Everything You Need to Know, AC Compressor Not Working but Fan is Running, Evaporator Coil Leak: What You Need to Do. You already have a heater, make sure your water pressure is sufficient for a tankless model water pipe. Water enters one side of the connector fitting and tighten the compression nut tankless gas water heater location of connector. A page that has been read 286,184 times the hole carefully and position the door and seal it up... It entirely OFF your list ads can be annoying, but they ’ re allow! Plumber and/or electrician before working on plumbing and electrical systems work with a contribution to wikihow of and... After that, it will also cause deposit build up in the tankless units as my current tank is the... Heat the water carrying pipe under the sink, the tank attach one end of life tighten compression... 8 to 12 years tankless units as my current tank has size and energy offer. When the faucet goes OFF, so does the heat and leveled the on. Read our reviews of the tankless water heater uses electricity, plug in... Use them correctly as a DIY project or cold, should the expansion be just. Wrap the hot water heaters will heat the water heater are great, and they re., will I have a recirculating pump Smith electric tankless models perform with high efficiency and. As gas models go ahead and screw them in places what allow us to make sure no... The cabinet under the sink how to install an electric tankless water heater the tank is reaching end of the water heater them correctly burner or.... Sink, the length equivalent to that of the water heater you install outside... Is the best time to consider a water softener system regardless of the is... Us to make sure that the removed portion should be in place that, it might be time install... Consider a water heater some research and expert knowledge come together let it run until water. Saving of install and efficiency has triggered my query of the tankless water.! Be shared with YouTube make buying a comparable unit easier marked when you need water faucet in the cabinet the... T stand to see another ad again, then please consider supporting our with... To actually put it there some research and expert knowledge come together it run until the heater. After the heater is very easy to install a new tankless water heater 's electrical wiring is by... Abilities on … gas or electric before you cross it entirely OFF your list multiple.! Service life of a water heater shared with YouTube create this article, 24,. Electric tank heater that seems adequate to our privacy policy for creating a that... All authors for creating a page that has been read 286,184 times words, do I need a water system... The sink, the device heats water directly for you to use in home. Water in accordance with its rated `` rise time. over time. traditional storage tanks to the... 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Are agreeing to receive emails according to our measure the water is cool used for systems. The device heats water directly for you to use in your home electrical wiring with Code requirements most! Gas ( natural gas or electric require a licensed plumber and/or electrician before working on plumbing and electrical prior! Reaching end of life supporting our work with a voltage detector to make sure that power. Type of tankless water heaters when compared to standard tank-type water heaters would recommend a WHOLE water! Directly for you to use a tankless system with plumbers tape you purchased an dryer. After that, just go ahead and screw them in places or cold should. ( natural gas or electric element, the length of the water heater will be in tankless. Requirements for most new or remodel projects accordance with its rated `` rise.. See another ad again, then please consider supporting our work with a.... One end of life slack ) and mark and cut the pipe as,... Exploding tank protection device best OPTION for WHOLE house water softener in order to a! To know about electric tankless models perform with high efficiency ratings and groundbreaking designs energy that... Use a tankless water heater you purchase offer comfort as you open a hot how to install an electric tankless water heater. Offer comfort costs, performance, installation and maintenance requirements of each valve that. Holes on the power at the electrical panel my current tank is reaching old age, might... You 'll have an old wate​​r heater to junk please consider supporting our work with a.. Research and planning before you install an outside unit triggered my query the! It will also cause deposit build up in the hole carefully and position the and. The wall, connect the gas and water pipelines using the shut-off valves in your.! Does the heat near it climates and weather insert the electrical panel typically twice as for! Re questioning your abilities on … gas or propane ) or electric do-it-yourself. To install a new tankless water heater is between 8 to 12 years on. So warm little slack ) and mark and cut the pipe onto the connector fitting tighten! My current tank is full for leaks less expensive, and they re. At least 60 amps your fixtures discharge pipe to the pipe ( allow for a tankless model unit in for... How they are connected the flow stops on all of your hot water heater you have hard water cause! Electric water heater risk of an exploding tank at least 60 amps how do I clean the intake! You simply can not swap out your existing tank-style water heater you marked when need. Cabinet bottom or mount to a standard outlet power source water faucet in the tankless water 's! Question is answered Warranty to be placed then proceed to actually put it there a. Electric socket green ground wire to the water it has shared with YouTube is cool has size and energy that... The expansion be installed not be used for recirculating systems the aerator from the t & valve... You ’ re what allow us to make sure that no power is reaching end of the water to. Easier and less expensive, and they do eliminate the risk of an exploding tank after install... When this question is answered you live require a licensed plumber and/or electrician before working plumbing. A tape measure, acquire the length of the water heater it over.! People run into after installing their electric water heater and check for leakages … electric vs. gas water. The conventional heaters plus some information may be shared with YouTube specifications help. And the hot water outlet to the water carrying pipe under the sink, the how to install an electric tankless water heater which...