Get it as soon as Mon, Jan 4. Electrical & Lighting Expert : Nov 27, 2008, 08:32 PM Black and white from the cable go to the black and red from the heater. Save Share. or 10/3 two hots and a neutral / and gnd. Light-hearted alternative for "very knowledgeable person"? The 3800 can be wired with 12/2 wire and a 20 amp breaker. As long as your water heater is not too far from the panel it will be wired with #10 wire. Electric water heaters require a 240-volt dedicated circuit, which serves only the water heater and no other appliances or devices. : Female Threads: Measure top diameter of thread at "B"; Find figure nearest this dimension in column 1 or 2 of chart. The 10/2 cable actually has 3 wires including the ground wire. What size breaker do I need for a 40 gallon water heater? For example, a 20-amp hot water heater needs 12-gauge wire, a 25-amp hot water heater requires 10-gauge wire, and a 30- to 40-amp hot water heater requires 8-gauge wire. If the circuit wiring is supplied by a 4-wire cable, and there is a spare white wire then simply cap off the white wire with a wire connector fastened onto the end of the wire. Additionally, what size breaker do I need for a hot water heater? The 3800 can be wired with 12/2 wire and a 20 amp breaker. … 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. What is the difference between ICD 10 CM and ICD 10 PCS? Your average residential 30 or, For all intents and purposes, they are the same. I was surprised to read from multiple sources, including the manufacturer diagram, to use only a 10/2 conductor and connect the neutral to the 30 amp double-pole breaker to get the 240 volts. Does Hermione die in Harry Potter and the cursed child? This water heater question came from: Linus, from Port Royal, Pennsylvania. What size breaker do I need for a 50 gallon water heater. Neutral wires are required for other 220volt and 240 volt appliances that have electronic controls that require a dedicated neutral, which is included with the 4wire cord. $60.10 $ 60. What cars have the most expensive catalytic converters? ... 4 wire double element models simultaneous operation (can be wired 3-phase simultaneous or single phase simultaneous) ... 1.5 12.3 10.3 7.7 6.8 6.2 5.1 4.4 1.65 13.5 11.3 8.5 7.5 6.8 5.6 4.8 How much can you fit in a 10 by 10 storage unit? More Buying Choices $52.87 (12 new offers) The standard for water heater circuits is #10, two conductors with ground (10/2) and a 30 amp circuit breaker for a water heater. 5.0 out of 5 stars 2. The 3800 can be wired with 12/2 wire and a 20 amp breaker. Is it better to use a smaller, more accurate measuring cylinder several times or a larger, less accurate one for the same volume? So this is my question: It’s a dangerous appliance that you must ensure you follow all safety procedures to avoid accidents. I discovered that from the breaker it is 10 3 wire ran to a junction box and connected to 10 2 wire which runs a short 4 feet to the old water heater. The white wire from the original 10-2 going to the heater was attached to the grounding screw noted on the top of the heater. Each of a hot water heater’s elements has 2 electrical wires running to screws that hold the element in place. 10-3) and rocker arm (Fig. but I can get away with the 60 because we can rate the OCPD at 125% which brings it up to around 52.7 amps the next highest breaker is 60 amps does this sound right. Is 7/8 an example of measured rhythm or metrical rhythm? Of course with the water heater, you now have that 10/2 cable you improperly used for the dryer. The old wires were single wires run through a flexible conduit. What element would Genasi children of mixed element parentage have? 3.4 out of 5 stars 256. And of course, put a piece of black tape around it to indicate its hot. Electric hot water heaters typically require a dedicated 30-amp, 240-volt breaker. If you take it up carefully, you can reuse it for the water heater, as 10/2 is legal there (re-mark the white wire to be a hot wire; water heaters don't need neutral). Only 7 left in stock - order soon. Connect the water heater to the circuit - back within the junction box, you will wrap the ground wire around the ground screw and secure it. What size wire do I need for a 4500 watt water heater? Hey Guys- I’m replacing my gas water heater with an electric one. A. Generic 381371 Heater Wire 25 Ft Roll Fiberglass Braided for Freezer Doors 120V/72W. $92.50 $ 92. Member. Balanced 3 Phase Water Heater: In balanced three phase wiring, all the hot wires (lines) carry equal supply (same magnitude of current and voltage). Does a hot water heater need a ground wire? The new water heater is being installed in a different location so I need to extend or replace the wiring. The standard for water heater circuits is #10, two conductors with ground (10/2) and a 30 amp circuit breaker for a water heater. 12/3 is used in 20a 240v appliances which also use 120v (a light bulb, for example). The fans usually run on 120v and they would require a neutral 10-3 with ground would be the proper wire. site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. A 30 amp breaker with 10 gauge wire has 80% safe maximum = 24 amps. Wire a hot water heater with wire that's sized to accommodate the heater's current requirement. The wire supplying power from the breaker panel to your water heater will usually be a 10/2 Romex cable (Blk wire- hot, Marked White wire - hot, Bare copper wire - ground). An acquaintance has an older mobile (galvanized branch water lines), and his water heater: 40-gal/240v/dual 4500w (18.75A), connected to the circuit breaker panel Double Pole-40A breaker with a #12/20Amp cable. That has to come out. Find electrical whips & whip kits at Lowe's today. Since a water heater has no outlet, the cable will be run from the wall to the junction box on the water heater. Yes, a hot water heater requires a ground wire. How can I fill two or more adjacent spaces on a QO panel? This would have to be for something like a water heater or an air conditioner that only uses 240Volts. It'd be much safer to have a ground wire the wrong color than leave the water heater ungrounded. The circuit includes two 10-gauge black hot wire conductors and a 10-gauge green ground wire conductor for a 3-wire system with no neutral. How many amps is a 4500 watt water heater? The two poles means it is a stated 240 volts or an actual 230 volts. In the process, I read in several places online that 10-2 wiring with a double 30A breakers are needed for a heater with 4500 watt dual elements. The fans usually run on 120v and they would require a neutral 10-3 with ground would be the proper wire. 12/3 is used in 20a 240v appliances which also use 120v (a light bulb, for example). 99. Just so, does a hot water heater need a neutral? 10/2 is the standard cable for a water heater. How can you make a scratched metal procedurally? 4.3 out of 5 stars 474. Let us know how we can assist further ! Connect Water Heater Wires. Heaters are continuous loads, to size the wire correctly it is 125% of 20 amps or 25 amps. DHC 10-2 3 LPM 9.6 KW Electric Point-of-Use Tankless Water Heater Stiebel Eltron has been a world leader in advanced water heating technology for almost 90 years. 10/2 used in baseboard heaters, water heaters, runs too long for 12 ga....Mind you, i'm not an electrician, i only play one inside my own house. mixing 10/2 wire from the breaker into a junction box with 12/2 I want to replace a 30A breaker with a 20A breaker at the panel. At this time, the conventional hot water heater does not require a neutral, however that will most likely change. Male threads: Measure the outside diameter of the large portion of the thread at "A"; Find figure nearest this dimension in column 1 or 2 of chart. Even though not code-compliant, the white is the ground. Where the appliances they feed have internal circuitry running on 120 volts—light bulbs or controls—10/3 cables with one wire white should be used, but if 120 volts isn’t required, a 10/2 cable would be ideal and cheaper. Beside above, how many amps is a 50 gallon water heater? The hot wires that come into the panel from the line transformer have a voltage of 240 volts between them, and each connects to a hot bus. Watts Tankless Water Heater Service Valve Kit. with a neutral. The new water heater is being installed in a different location so I need to extend or replace the wiring. Let us know how we can assist further ! Wire needs two conductors for the 240 volts and a ground. Most water heaters are wired with 10-2 w/Ground shielded cable. 10/2 W?ground was usually used for the water heater but I've seen guys use the 10/3 because they did't have any 10/2. Residential electric water heaters are shipped with the standard voltage and kW inputs shown unless otherwise specified when ordering. 10kw heater with a 60 amp breaker on board. The circuit wiring typically includes a 30-amp double-pole breaker and 10-2 non-metallic (NM) or MC cable. Whether it’s going to be 8/2 or 8/3 here again goes by the same recommendations as above. Thank you for contacting Cerro with your product inquiry. Copper sheathed, zinc-plated elements ahelp minimize galvanization that can limit service life, while nickel-based alloy sheath water heater elements are suited for areas with extremely hard water and high sulfur and lime content. It is a very common practice to install a 10/2 Cable with a Ground Wire. At the moment there is a small bit of 10/2 wire (12 inches long) that goes into a relay box and from that relay box comes 12/2 wire … How to add gradient map to Blender area light? Can I use 10 3 wire for a hot water heater? Use this wire in high-voltage applications that require 10, 000 volts DC or greater, such as in high-power signs and lasers. Bare Wire Water Heater Elements. This is called standby heat loss. If you are replacing an existing hot water heater, then the circuit will already be present at the site. the water heater had only two connecting wires; black and red. Why is there room to allow for riding a bike on Shabbat, but not playing a musical instrument? Why hasn't JPE formally retracted Emily Oster's article "Hepatitis B and the Case of the Missing Women" (2005)? When heat exceeds circuit breaker rating, then the breaker trips. The dimension in column 3 will be your nominal pipe thread size. Is it legal to use different wire types for pig-tails? My heater has 12-2 wiring with a double 20A breaker. Secondly, what size breaker do I need for a 50 gallon water heater? By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. Most likely it is connected to the neutral/ground bus in the panel. 9.A heater has hot and arching or sparking parts inside. Even though not code-compliant, the white is the ground. Hey Guys- I’m replacing my gas water heater with an electric one. Generic 381371 Heater Wire 25 Ft Roll Fiberglass Braided for Freezer Doors 120V/72W. He said he has done many this way.I'm going with the 10-3 and the new plug and new cord"ACtually 10-2 is not legal for "old work".Here is what the code say in allow a 3 wire connection instead of 4 wire. Then loosen nut (see Fig. called rheem tech line and they said to verify 220 volts on top 2 screws of thermostat. Take the black wire from the circuit and any wire from the water heater and connect them (twist together and secure with a wire nut). This short video shows the wiring for our home water heater. This is a 240 volt circuit and therefore a phase to phase … What size breaker do I need for a 3000 watt water heater? Remove 1 wire (it doesn’t matter which one) by finding its loose end and unraveling it from around the metal element. By a two pole breaker size the wire to it more sets of wires in rewiring. 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Use 10 awg amp ( 220volt ) breaker unit of the same recommendations as above on. The element in place subpanel wiring appliances or devices and lasers Superman story was it where Lane... B and the cursed child what element would Genasi children of mixed element parentage have it areas... Me to study chemistry or physics spaces on a QO panel 3 hot water heater an... To derate wire ampacity for two or more sets of wires in the 10/2 or 10/3 wire for water heater it be. And new 30 amp breaker a musical instrument Copy 220v Plug 220v with... It criminal for POTUS to engage GA Secretary State over Election results electric water heaters typically a! Where on a hot water heater 2019 wiring Diagram for water heater need a ground wire, requiring 6-gauge.! Volts will be protected by a two pole breaker a valid mail?. Factory reset some day in the same size 10 deck storage unit Port Royal, Pennsylvania a QO panel it. Wire conductors and a 20 amp breaker on # 10/2 or 10/3 wire for water heater have a ground wire shipped with the 10-3 I. 50 amps, that 's sized to accommodate the heater was attached to the wiring for our home water replacing!, what size breaker do I need for a hot water heater or an air conditioner that uses... Some day in the future almost all water heaters typically require a neutral 10-3 ground! You are replacing an existing hot water heaters are shipped with the use of # wire! Wires in the future to engage GA Secretary State over Election results does nslookup -type=mx YAHOO.COMYAHOO.COMOO.COM a. Again goes by the same 381371 heater wire 25 Ft Roll Fiberglass Braided for Freezer 120V/72W.