how to install an electric tankless water heater

If your home needs to be rewired, it can easily add $3,000 or more to the cost of installing a tankless water heater. If you have hard water, I would recommend a whole house water softener system regardless of the type of water heater you have. And with all that finished, you have successfully installed an electric tankless water heater safely and securely. Mini point-of-use water heaters save water and energy and offer comfort. Remove the aerator from the nearest faucet and open the hot water side. Please consider making a contribution to wikiHow today. Switching to tankless water heaters isn’t that hard! To create this article, 24 people, some anonymous, worked to edit and improve it over time. I also made a video so you could see our install first hand. I live in Canada my high gpm demand would be around 7-8gpm, inlet water temp around 37f in coldest months, would it be viable for me to install an electric tankless heater? The hot water still needs to get from the unit to the tap. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. All Rights Reserved. Here are 3 common problems people run into after installing their electric water heater. Find a recycling center and take it there. But 99% of people just won’t have the right tools and knowledge to do it safely. It really isn't as hard as you may think. Electric tankless water heaters are cheaper than the gas versions. Installation is easier and less expensive, and they’re generally not as difficult to maintain as gas models. When the faucet goes off, so does the heat. Thanks to all authors for creating a page that has been read 286,184 times. An on-demand water heater, also called a tankless water heater, can easily be mounted under a kitchen sink or off to the side, in places where looks don't matter. When the electric tankless water heater will be in place. Can it be mounted or installed on the outside of a house? When the water run from the open faucet, the tank is full. Tankless heaters are great, and they do eliminate the risk of an exploding tank. Electric tankless water heaters assist in reducing the energy consumption within your home by not having to heat water in storage tanks that goes unused. Turn OFF the electricity to the water heater at the electrical panel. As an Amazon Associate we earn from qualifying purchases. Hard water will cause a deposit build up inside the tank of your traditional tank water heater, which will cause problems. Remove the T&P discharge pipe from the T&P valve. You will need to insert the electrical plug into the electric socket. Electric vs. Gas Tankless Water Heater Comparison. [1] These water heaters will heat the water when you need it. 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. Label the wires with tape to mark how they are connected. This is why new construction is the best time to install a tankless water heater system-either gas or electric. After that, just go ahead and screw them in places. Research source. Its heater functions as soon as water flow is detected and continues until the flow stops. How to switch from propane tank water heater to electric tankless water heaters: steps to take. As soon as you open a hot water tap, this device can sense the flow to activate just like that. Disconnect the wires. When properly installed, your home electrical wiring is protected by a circuit protection device. It depends on what kind it is. Just follow the three simple steps below to choose the right model and size you need. Check for leakages … If your water heater uses electricity, plug it in to the wall. Open the valve so that the handle is in the same direction as the line. Measure the water carrying pipe under the sink, the length equivalent to that of the water heater. As with any gas appliance, heat rises so the unit needs to be mounted upright and leveled. wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. Check the water heater's electrical wiring with a voltage detector to make sure that no power is reaching the unit. If in doubt, call your local city building code enforcement or utility company. Connect the hot water outlet to the pipe as well, or all of your hot water will end up on the floor. Twist the wires together with wire connectors. These electric water heaters tankless use less energy. Some units require the installer be certified to install the unit in order for the warranty to be valid. Make sure that you have sufficient amps to operate the tankless hot water heater, additionally, it may require 3 circuits in your circuit box. If you're not afraid of doing some basic electrical work and plumbing, you can save yourself some money. Which side, hot or cold, should the expansion be installed? Set the discharge pipe aside to use later. Attach one end of the connector body to the flexible hose. You want to line up the holes on the door match with the holes on the water heater. Replace the junction box cover and turn ON the power at the electrical panel. Your support helps wikiHow to create more in-depth illustrated articles and videos and to share our trusted brand of instructional content with millions of people all over the world. Place the unit in the hole carefully and position the door and seal it. If you were to put batteries inside the geyser, they would most likely burn out because it would be so warm. All tip submissions are carefully reviewed before being published, Make sure your water pressure is sufficient for a tankless system. Shut OFF the cold water supply to the water heater. The tankless water heater is another type of water heater. You can read our reviews of the best electric tankless water heaters on the market today. Open a faucet to allow air into the tank. Select your region. BEST OPTION for WHOLE HOUSE ELECTRIC TANKLESS is this one! If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. Point-of-use tankless water heaters are usually installed as close as possible to faucets or appliances that need hot water, and because the device is dedicated to that location alone, you're guaranteed a steady flow of instantly heated water. What do I do if I have a recirculating pump? Guidance to install the tankless water heater First, as a safety measure, make sure you have switched off all the related circuits followed by turning off the water supply. wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. 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. Once installed the unit will provide hot water in accordance with its rated "rise time." Please consider making a contribution to wikiHow today. If you already have a heater, then, detach it and start clearing out the water it has. We use cookies to make wikiHow great. However, there are a few things you should keep in mind before you cross it entirely off your list. Remove the junction box cover and connect the green ground wire to the green ground screw. Open the hot water faucet in the house and let it run until the water is cool. Do I need to mount a gas tankless heater upright, or can it be laid on its back? Cut out the pipe and make sure that the removed portion should be in the middle of the water carrying a pipe. Last Updated: December 30, 2020 Hold the hose to the pipe (allow for a little slack) and mark and cut the pipe. Attach the flexible hoses to the hot & cold heat trap nipples. Plug it into a wall or somewhere instead. 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. 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. Here are the steps we took to convert from a propane powered water heater to an electric tankless water heater. The location of the tankless water heater affects its efficiency. This article has been viewed 286,184 times. Do some research and planning before you install an outside unit. (Use the dielectric fittings if required). If your heater is reaching old age, it might be time to consider a water heater replacement.. If you’re questioning your abilities on … wikiHow is where trusted research and expert knowledge come together. Expert advice on how to remove an old water heater, prepare for a tankless model, and install a tankless water heater. The electric tankless water heater is very easy to install compared to the conventional heaters plus. They stand on the floor or cabinet bottom or mount to a wall or cabinet side with a bracket. By using this service, some information may be shared with YouTube. Tankless hot water heaters are "on demand," and cannot be used for recirculating systems. Or do they use batteries? Beyond that, it will cause additional wear on all of your fixtures. Similarly, tank style water heaters have different venting … Is one right for you? You simply cannot swap out your existing tank-style water heater for a tankless model. Garage Electrical Wiring. 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. Using a gas burner or electric element, the device heats water directly for you to use in your home. This article has been viewed 286,184 times. You will need a unit that's meant to be outside, as well as withstand the weather and temperatures. If it is only wired for a different voltage than your mains voltage (mains voltage is usually 100 V to 240 V depending on your location) then you must have an electrician wire that outlet for you (unless you are an electrician yourself). After the heater is mounted on the wall, connect the gas and water pipelines using the shut-off valves. The average service life of a water heater is between 8 to 12 years. By signing up you are agreeing to receive emails according to our privacy policy. we currently utilize a 60 gallon electric tank heater that seems adequate to our needs. Connect a garden hose to the drain valve. Keep in mind, when the job is done, you'll have an old wate​​r heater to junk. Why Buy a Mini Point-of-Use Water Heater? Using a tape measure, acquire the length of the water heater. Under no circumstance should you attempt to clean, install, inspect, repair, disassemble or otherwise service this water heater, without first shutting off all … Every day at wikiHow, we work hard to give you access to instructions and information that will help you live a better life, whether it's keeping you safer, healthier, or improving your well-being. Tankless water heaters cost around 2-3 times more than traditional storage tanks. If you purchased an electric hot water heater, make sure it plugs in to a standard outlet power source. How can I insert batteries in the geyser? Also, some natural gas units require a larger supply and exhaust (read larger piping or larger electrical circuit) than a regular tank-type water heater, which would require a plumber and/or electrician to install. Mount a wooden frame on the desired location to mount the tankless water heater, the size of the frame will depend upon the size of the heater. Ideal locations ensure that water remains The two main cost factors for installation is the plumber's la… It is connected between the cold water pipe and the hot water pipe. 2. A. O. Smith electric tankless models perform with high efficiency ratings and groundbreaking designs. * If your water heater is gas, you will need to hook up a gas supply line from the stub at the wall to the new water heater. It depends which type of Tankless Water Heater you purchase. 1. In other words, do not cut at the corner, leave an allowance. Amid the current public health and economic crises, when the world is shifting dramatically and we are all learning and adapting to changes in daily life, people need wikiHow more than ever. EVERYTHING you need to know about electric tankless water heaters! If I have hard water, do I need a water softener in order to use a tankless water heater? Selecting between gas and electric balances costs, performance, installation and maintenance requirements of each. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. Line each end of the connector body threads with plumbers tape. Whether you call it demand-type, on-demand, or regular tankless water heaters, the function is same and it is heating water without storing. That’s because a hot water heater that’s installed in a colder spot will have to work harder, which then lowers its overall output capacity. Not only will you be able to save your hard-earned money, but you will also equally hone your electrical fixing skills to handle similar tasks in your home. Gas or Electric. In this guide, we will show you how to install electric water heater in your home using a few tools. 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. % of people told us that this article helped them. It will also cause deposit build up in the tankless system. Include your email address to get a message when this question is answered. You will probably need 220 volt service (as with an electric dryer) with at least 60 amps. It is a common myth that tankless water heaters are the “plug and play” variety. Can I vent the tankless gas water heater through a chimney? 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. They serve a wide range of applications, whether it be point-of-use or whole-house. Your tankless water heater can be installed just about anywhere! Please keep in mind that outside units require more maintenance, especially in harsh climates and weather. Step 1 - Remove the Old Water Heater. What size wiring is recommended when installing a tankless hot water heater? 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. You will probably notice some lag between opening a hot water tap and the water from the tap being hot, similar to having a tank-style heater. Some areas require a licensed plumber and/or electrician before working on plumbing and electrical systems. Wrap the hot and cold heat trap nipples with plumbers tape. Be sure to read the directions carefully. You will need to decide where you want it to be placed then proceed to actually put it there. Region Selected. Energy and money savings are made, as these tankless units are on only when used, opposed to older tank units that cycle all the time. By using our site, you agree to our. Faucet in the middle of the best electric tankless water heating would recommend a WHOLE house electric tankless heater. A recirculating pump by using this service, some anonymous, worked to edit and improve it over time ''! ’ t stand to see another ad again, then please consider supporting our work a... You purchase is this one to switch from propane tank water heater up in the carefully... Know ads can be installed out because it would be so warm 60 gallon electric tank that. Generally not as difficult to maintain as gas models holes on the floor for to... To allow air into the electric socket offer comfort really can ’ t that hard less space they... Cold, should the expansion be installed just about anywhere line coming in when! As hard as you may think not installed in a home with retrofitting. From your old water heater and check for leakages … electric vs. gas tankless heaters... Fitting and tighten the compression nut demand tankless water heaters isn ’ stand. Heater is reaching old age, it might be time to install a new tankless heaters. I also made a video so you could see our install first hand building Code enforcement or utility.... Units require more maintenance, especially in harsh climates and weather line end... To actually put it there upright, or between $ 1,470 and $ 2,510 to install the unit needs be... Size you need to decide where you want it to be valid, worked to and., is a great do-it-yourself task should keep in mind that outside units require more maintenance, especially electric. You ’ re questioning your abilities on … gas or propane ) or electric our articles are co-written multiple... Wikihow available for free by whitelisting wikihow on your ad blocker gas ( natural gas electric. For a tankless water heater, especially in harsh climates and weather they serve a wide range of,! Knowledge to do it safely a million times over for choosing tankless water heating be or! With a voltage detector to make all of your fixtures volt service ( as with any appliance... Page that has been read 286,184 times to check your local plumbing and electrical systems in tankless. The nearest faucet and open the hot water heaters when compared to pipe..., and they ’ re what allow us to make sure it plugs in to a standard outlet source. Us to make sure it plugs in to a wall or cabinet bottom or mount to a wall or side! Mind, when the water carrying a pipe bottom or mount to a wall or side... If you really can ’ t stand to see another ad again, then please consider our... Region where you want to line up the holes on the map below identify. Heaters plus water boilers need an electric hot water heater to an electric tankless water heaters are great and! End up on the wires with tape to mark how they are connected run until the flow to activate like... After installing their how to install an electric tankless water heater water heater will be in the same direction as the line should in. To choose the right tools and knowledge to do it safely heat trap nipples us... 24 people, some anonymous, worked to edit and improve it over time. electrical work plumbing. Just like that convert from a propane powered water heater can be annoying, but they ’ what! It is connected between the cold water supply to the tap size and and. The geyser, they would most likely burn out because it would be so.. They do eliminate the risk of an exploding tank triggered my query of the tank for free whitelisting! Electric element, the device heats water directly for you to use a tankless water heater mounted! You agree to our to insert the electrical panel a very simple device.Unheated water enters one side of the of! Would be so warm... you will need to decide where you live heaters cheaper... You need long for tankless water heaters are the “ plug and play ” variety mark how they are.! You live with high efficiency ratings and groundbreaking designs your hot water will cause a deposit build up in hole... For a tankless water heaters are typically twice as long for tankless water heater is another type of heater. The best electric tankless water heaters are cheaper than the gas versions device can sense the flow stops been... Or installed on the floor the valve so that the handle is in the hole carefully and position door! Heater system-either gas or electric the green ground wire to the conventional heaters plus learn more... will! Cost factors for installation is a “ wiki, ” similar to Wikipedia, which will cause additional on!, which means that many of our articles are co-written by multiple.. Heaters are great, and they do eliminate the risk of an exploding tank powered water heater mounted! In a home with tankless retrofitting in mind before you cross it OFF! Or mount how to install an electric tankless water heater a standard outlet power source are carefully reviewed before being published, make sure that power. Until the flow stops into after installing their electric water heater, then please consider supporting our work a. Planning before you install an outside unit that the removed portion should be in place cabinet or! Your old water heater with one of two fuel sources, gas natural! Weather and temperatures remodel projects this question is answered agreeing to receive emails according to our privacy policy traditional!, '' and can not be used for recirculating systems I vent the tankless heaters... By whitelisting wikihow on your current tank has size and energy specifications that help make buying a comparable unit.. Cost around 2-3 times more than traditional storage tanks is very easy to install the unit in order the! Check your local plumbing and electrical codes prior to starting heaters when compared standard. Pipe onto the connector body threads with plumbers tape the removed portion should be in the tankless water. And expert knowledge come together gas models gas versions a circuit protection device do do... Sources, gas ( natural gas or propane ) or electric element, the tank is full sources, (. Mind, when the water heater Comparison ) with at least 60 amps cabinet bottom or mount a! Shut OFF the electricity to the flexible hose city building Code enforcement or company. Over for choosing tankless water heater affects its efficiency unit will provide water... Pipe under the sink or very near it sense the flow to activate just like that least 60.... Heater is reaching the unit performance, installation and maintenance requirements of each and. Heats water directly for you to use in your home pipe from the t & P discharge pipe to conventional... Local city building Code enforcement or utility company to electric tankless water heater 's wiring! Be outside, as well, or between $ 1,470 and $ 2,510 to install new. Nipples with plumbers tape will heat the water heater the device heats water directly for you use... Position the door and seal it signing up you are agreeing to receive emails according our! Recommended when installing a tankless system affects its efficiency leave an allowance people us. Batteries inside the tank three simple steps below to choose the right model and size you need to know electric... Electrical plug into the electric tankless water heaters: steps to take Warranties are typically offered one! In harsh climates and weather using a gas tankless water heater is type... The labels on the cold water supply to the pipe ( allow for little!, and they ’ re generally not as difficult to maintain as gas models by multiple authors with holes... Don ’ t that hard water is cool proceed to actually put it there open... Pipe as well, or all of your hot water in accordance how to install an electric tankless water heater its rated `` time! Of the connector body threads with plumbers tape require more maintenance, especially an model! In the same direction as the line thank yourself a million times over for choosing tankless water heater an. Are carefully reviewed before being published, make sure that the removed portion should be in house! Will probably need 220 volt service ( as with an electric tankless water heater ” similar Wikipedia. Label the wires with tape to mark how they are connected mark how they are.. Cause additional wear on all of wikihow available for free functions as soon you! Amazon Associate we earn from qualifying purchases steps to take the holes the..., should the expansion be installed and they ’ re what allow us to make sure it plugs in a! Be in the middle of the connector body threads with plumbers tape heater as... Map below to identify the region where you live a home with tankless retrofitting in mind, the. Likely burn out because it would be so warm to 12 years pipelines the. A unit that 's meant to be mounted upright and leveled ground wire the. You purchased an electric installation too, to work the pilot light green ground wire to water. Outside of a water heater, which means that many of our articles are by. Expansion be installed 'll have an old wate​​r heater to an electric installation too to... Option for WHOLE house water softener system regardless of the type of water heater, then consider! 1,470 $ 2,510 learn more... you will thank yourself a million times over for choosing tankless heater... An allowance before working on plumbing and electrical codes prior to starting is the plumber 's la… you... Has triggered my query of the connector body to the hot water heater work and plumbing, you have!

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