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can you wire a hot water heater backwards

Short story called "Daddy needs shorts", baby unconsciously saves his father from electrocution. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. The ungrounded side of the circuit ( hot) is connected to the heater and can only be interrupted by the circuit breaker . Is this ok? Why is my hot water baseboard heater not heating? If you are replacing an existing hot water heater, then the circuit will already be present at the site. Can the review of a tenure track application start before the reference letters arrive? A quick swap of the dip tube would solve this problem nicely. What is this symbol that looks like a shrimp tempura on a Philips HD9928 air fryer. How to do a simple calculation with the VASP code? The bonding jumper may be required to ensure a reliable bond in a metal water piping system. Cold feed through hot side of water heater? I wonder.....are there some water headers made where the cold water dip tube can be dropped into either pipe from the top of the unit? Typically, the wire conductors leading to the heater are enclosed in flexible metal conduit or are made with flexible metal cable, such as metal-clad (MC) cable. … Each pair of thermostats and heating elements has screw terminals that are connected to wire leads in the water heater. Powervent Water Heater Has Cold Air coming into Vent, New water heater sometimes cold, sometimes hot. Get daily tips and tricks for making your best home. Such swappable scheme would lend itself to some replacement installations where the Hot/Cold lines of the existing plumbing are opposite to the factory default H/C pipes of the heater. The electrical wire connections for a water heater are made at a built-in junction box on the top of the water heater tank. Some experts believe a bonding jumper helps water heaters last longer by reducing corrosion in the tank caused by electrolysis. When replacing a water heater, it's a simple matter of making sure the jumper connections are in place after you finish installing the new water heater. The white circuit wire should be wrapped with black or red electrical tape near the connection at both ends of the circuit (at the water heater and at the breaker box), to indicate that it is a "hot" wire, not a neutral wire. Although you won't need to deal with the thermostats or heating elements during a simple replacement of an electric water heater, it's helpful to know that electric water heaters also include inner wiring that runs from the wire connection box down along the side of the tank to two different heating elements, each controlled by its own thermostat. It only takes a minute to sign up. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. The cold water should be entering the bottom of the tank, the hot output at the top: I'd insist that the plumber fix this. rev 2020.11.3.37938, The best answers are voted up and rise to the top, Home Improvement Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. Not always -- some heaters have an anode in the hot port that will need to be switched around as well. Replacing an electric water heater requires a permit in most areas, whether the installation is performed by a professional or by a homeowner. Detailed explanation: what is "dayspring"? So I called the plumber and he said that everything is installed correctly. Is it a good idea to shove your arm down a werewolf's throat if you only want to incapacitate them? Often the dip tube is plastic and replaceable. How much predictive power do those tiny towns in New Hampshire who declare at midnight have for US Presidential elections? Before you examine or touch the water heater wiring or electrical connections, turn off the power to the circuit that supplies the water heater. Yes, reversing them would be a bad thing. Strange I know answering a question with another question. Yes, reversing them would be a bad thing. I sure hope that is a typo. I have had heater installations in previous homes where the water lines to the heater were fixed pipes attached to the heater without flexible couplers. Creating new Help Center documents for Review queues: Project overview. With the cover plate removed, you can test for power simply by holding a non-contact voltage tester next to the wire connections; if the circuit has been properly shut off, the tester will not light up. What does rain 雨 have to do with mold 霉 and bad luck? Is it safe to mount the same partition to multiple VMs? I just had a plumber install a new 50 gallon water heater, but the cold water pipe is installed to the hot side (the left pipe when facing the front of the heater) and the hot water pipe is installed to the cold side (the right pipe when facing the front of the heater). What is the third pipe leading to my water heater? As part of the permit process, the work will be reviewed by an inspector to ensure that both the electrical and plumbing connections are done properly and safely, and that the installation complies with the local code requirements. I get hot water, but the top of the water heater is marked "hot" and "cold" but the pipes are the opposite temperature. Could you potentially turn a draft horse into a warhorse? The circuit wiring typically includes a 30-amp double-pole breaker and 10-2 non-metallic (NM) or MC cable. Apparently yes, it does mater! The cold water should be entering the bottom of the tank, the hot output at the top: I'd insist that the plumber fix this. Is it ethical to award points for hilariously bad answers? If you're planning to replace an existing electric hot water heater, now is the time to make sure the original water heater wiring is up to snuff. It should be reasonably easy to swap sides if both top fittings are the same and made to catch the flared top on the dip tube. Timothy Thiele is an electrician who advises residential DIYers on how to make home installation projects safe and easy. How does cold water pressure get used by a hot water heater to produce hot water pressure? It's important to note that the bonding jumper is not required by the National Electrical Code nor the Uniform Plumbing Code, but it may be required by your local building authority. I thought that the cold water pipe had to go into the cold intake value and the hot water pipe would be connected to the hot value. If you're planning to replace an existing electric hot water heater, now is the time to make sure the original water heater wiring is up to snuff. Introducing "One Thing": A New Video Series, The Spruce Gardening & Plant Care Review Board, The Spruce Renovations and Repair Review Board. At the water heater, the black circuit wire connects to the black wire lead on the water heater, and the white circuit wire connects to the white wire lead on the water heater. This is enclosed by a cover plate, which you can remove to inspect the wire connections inside. Why does shutting off cold water valve to the water heater shut down cold water in entire house? This flexibility provides a little wiggle room, making it easier to replace the water heater, and it is a required feature in many earthquake areas. How to stop a toddler (seventeen months old) from hitting and pushing the TV? Could you be looking at the back of the water heater? As such, without it being a big plumbing project, it was far more convenient to redo the coupler pipes directly. And he wouldn't change the plumbing. Would a mouthpiece attachment that does the "work" invalidate the ritual use of the Shofar? Some building authorities require a bonding wire, or bonding jumper, between the hot water and cold water pipes serving the water heater. How to Wire a Line-Voltage Thermostat for a Baseboard Heater, How to Replace a Heating Element in an Electric Water Heater, How to Replace an Electric Water Heater Thermostat, The Basics of 240/250-Volt Air Conditioner Circuits, How to Install a 240-Volt Electric Baseboard Heater, How to Install a Line Voltage Thermostat for a Baseboard Heater, Understanding Electrical Grounding in Household Wiring, How to Wire an Electrical Circuit Breaker Panel, How to Wire a 4-Prong Receptacle for a Dryer, Wiring for Split-Wire or Split-Feed Outlets, How to Wire and Install Single-Pole Switches, How to Install a Single-Pole Dimmer Light Switch. Shouldn't take more than a half hour to do so. The heating elements, and the thermostats that control them, are contained inside access panels mounted on the side of the water heater tank. Links have a way of going bad over time. In any case, if you need a bonding wire, it usually consists of a 6 AWG bare copper wire connected to a ground clamp on each of the hot and cold water pipes. +1 Good Answer, it will make your heater a lot less efficient and cause you to run out of hot water a lot quicker, this is due to the mixing affect when water is entering the top of the water heater instead of the bottom and also the hottest water will obviously be at the top of the heater.

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