How many amps does a 10 kw heater draw. Jan 9, 2023 · #6 is good for 55 amps so that would work for the 8kw unit but as stated by Larry #4 would be needed for the 10 kw unit. 5 ton heat pump with a 10kw heat strip. How to Tell How Many Amps an Appliance Uses? The available electricity is in voltage, and the power the electricity produces is in watts. Sep 10, 2025 · Enter the wattage rating and the source voltage into the calculator to determine the amperage draw of the appliance. Most usually are actually rated something like 9. 6 KW. Jun 3, 2025 · Heat pump amp draw is 8 to 37 amps based on the heat pump size and to a lesser extent its efficiency. How to find amperage or amps from watts? To convert electrical power to electrical current (Watts to Amps), we need to use the electrical power equation: Dec 9, 2023 · During startup, a diesel heater draws 8 - 12 Amps and during operation, it draws 0. Appliance Watts/Amps Calculator Electricity is measured in units of energy called watts, named after James Watt, the inventor of the steam engine. Feb 2, 2025 · Discover how much energy space heaters consume in this comprehensive guide. We’ll look into how you calculate how many baseboard heaters can be put on a 20-amp circuit and check how many amps do baseboard heaters draw. A kW to amps calculator helps you evaluate the electrical demands of lighting, sound systems, and equipment, allowing you to specify the right generators and prevent overload in the facility’s infrastructure. This calculation is based on the conversion factor of 1 kW = 3412 BTU/h. To Calculate Values Not Shown: Use Ohms law Single Phase: Watts = volts x amps Three Phase: Watts = 1. A 10 kW electric heater operating at 240 volts draws 42 amps. For example, a heater designed to output a maximum of 2,000 watts will be May 31, 2025 · 🧮 The Basic Formula To figure out how many amps your unit draws, use this simple formula: Amps = Kilowatts × 1000 ÷ Voltage So for a 3. 69 amps at 230 volts,at 240 volts the same heater will draw 9. Jul 24, 2019 · We will be replacing our complete AC / heat pump system (outdoor unit and inside air handler and I wanted to ask what is the proper size breaker size? We are going with a Goodman 2. This article breaks down the amperage for various heater types, explains essential factors affecting energy consumption, and provides a simple formula to calculate usage. Definition: This calculator determines the electrical current (in amps) required by an electric heater based on its power rating and operating voltage. 5 - 22. Jun 27, 2025 · Models with higher capacity or higher wattage elements can use more current. 33 amps when operating at 120 volts and approximately 41. So, the equation will be 15. For instance, if you have a bulb with 200 watts on a receptacle of 120 volts, the amperage will be 1. To determine the amperage draw, the number of watts is divided by the number of volts going through an outlet. 33A 2. That being said, how much power your 30 amp RV will actually use depends on the devices inside of it. Oct 2, 2021 · For example, you get a 1500-watt space heater, and it requires 120-volt to run. Sep 12, 2025 · A 3 Phase Heater Amps Calculator is a tool used to determine the current drawn by a heater in a three-phase system based on its power and voltage ratings. So, amps this space heater will draw- 1500÷120=12. 5 amps. 2 amps That’s just for the electric heat —you also have to factor in the rest of the PTAC’s draw (fan motor, compressor, control board A 1500 Watt heater will cost the same to run whether it is 120 or 240 Volt. Feb 7, 2024 · 15 kW to amps: Here's how to convert 15 kilowatts to amps, including the formula, useful information and a power to electric current converter. Using the formula mentioned earlier, we can calculate the amp requirement: Amps = 10,000 Watts / 220 Volts. The total KW of the heater is 15 KW. Equip yourself with the knowledge to heat Please fill out the following form, and we will contact you soon. 15, increase above amp values by 15%. Can often use a 60 amp and 30 amp circuit. A larger 9kw heater requires usually 3x16A, and larger heaters may need up to 60A. Oct 31, 2022 · 10kw heater at 220V draws how many amps? A 10kW heater at 220V would draw approximately 45. Make informed decisions about space heaters and create a warm Jan 27, 2025 · Discover how many amps your space heater draws and why it matters for safe, efficient heating in your home. He measured the draw at both legs of the 240 V feed at the panel. This is a "continuous load" so the wires must have an ampacity of 125% of 41. Dec 13, 2014 · I am replacing a propane furnace with a Rheem Air Handler and 15kw heater kit. com CLICK HERE NOW! Jul 29, 2025 · kW to Amps(kiloWatts→ Amperes) Automatically, easy, fast and free. Locate and record the maximum wattage rating. The exact amps an electric furnace requires is solely based on the size of the furnace and its performance capabilities; however, typically electric furnaces require a draw between 60 and 80 amps. 8333 amps are drawn to generate 100 watts. Additional specifications follow. 6 kw and requires 54 amps. How Many Amps Are in a Watt? Using the formula above, you can also calculate how many amps of current are drawn for each watt of power, depending on the circuit voltage. 10,000 watts divided by 240 is 41. Well that's a factor of 2 In general, electric tankless water heaters can have a power input from 10, 000 watts (10 kW) to 40, 000 watts (40 kW). How many amps can 10-gauge wire handle at 240 volts? Wire Size Selection for Long Runs Jun 21, 2024 · The formula you are looking for is I = W/E, Amps = Watts/Volts. 2. Looks to me like I should install a smaller breaker to fit the 8 KW strip (and the #8 wire from the disconnect. Jul 9, 2012 · Already the peak is above 50 amps and you don't have 2-4 amps for a blower, which clearly kick you to a 60 amp #6. Voltage Example: A 1500 watt heater is running on a standard 120V. Kw to amps is a kilowatts to amps conversion calculator. kW to Amps Conversion Calculator, Formula, and Example – Both Kilowatts and ampere are essential as the parameters of electricity and electrical circuit. For example, a single 10 kW strip heater on a 240V circuit can pull about 42 amps alone, in addition to the amperage from the heat pump compressor and fans. Here is are 3 ways how you can figure out how many amps does your mini split use (we will use the 3rd method for Mini Split Amps Calculator and chart below): Just check the amps on the specification sheet. 7-amp load safely. Indeed, a 1500-watt space heater draws 12. Sep 5, 2015 · That said most "10 kW" units I ever run into are just called 10 kW as that i rounded off to nearest kW unit. Usually you should buy the heat strips with built-in breaker. 240 Volt heating circuits are more common because it reduces the Amp draw on your breaker/fuse panel, as the chart shows, you can place more heaters on a 20 Amp 240 Volt circuit (maximum of 3840 Watts) versus a 120 Volt circuit (maximum of 1920 Watts). 6. By multiplying the volts by amps you will receive total wattage. The phase current I in amps (A) is equal to 1000, multiplied by the power P in kilowatts (kW), divided by 3, multiplied by the power factor PF, multiplied by the line to neutral RMS voltage VL-N in volts (V). This wire is rated for 30 amps and can handle up to 7500 watts. If you want to determine what size circuit breaker you need to run this heater, just multiply 12. So, 10,000 Watts / 220 Volts = 45. 25 amps. High-recovery units may have 6000-watt elements which may need 25 amps at 240 volts, and need a 30-amp or even 40-amp circuit depending on local codes. 5 × 1000 ÷ 208 = ~16. Dec 1, 2021 · On the other hand, the whole house tankless appliance with 28,000 watts will need a wire and circuit breaker that will accommodate 120 amps at a much higher cost than an electrical system to a tank-style unit. Sep 5, 2021 · How many amps does a 200 watt heater draw? Equivalent Watts and Amps at 12V DC Power Current Voltage 170 Watts 14. 07 amps giving 2177 watts and at 220 volts the same heater will draw 8. A Guide to Full Load Current (Motor Amps), Breaker Size, NEMA Size Starter, Heater Amps, AWG Wire Size and Conduit Size for 3 Phase Electric Motors. as per the inverter amp draw calculator. Here’s the summary on what is the maximum baseboard heating load that may be connected to on a 20 amp circuit breaker: If you use 120V baseboard heaters, the 20-amp Jan 14, 2025 · Amp Ratings by Type: Different space heaters have varying amp requirements; for example, convection heaters typically draw 6-12 amps, while infrared heaters can use 10-15 amps. Check the label on the water heater and you should find the specified water heater amperage. It is important to note that this is just a general Feb 7, 2024 · 10 kW to amps: Here's how to convert 10 kilowatts to amps, including the formula, useful information and a power to electric current converter. That can be anywhere up to 8 or 10 amps depending on the size of the heater. 45 amps. Sep 4, 2025 · A 10 kW heater on a 240-volt circuit requires at least a 50-amp circuit breaker (allowing for an 80% continuous load rule). The manual says it needs a single circuit 80 amp breaker to split to 2 breakers in the unit with a jumper kit. Jun 7, 2024 · To calculate the amperage for a 10kW heater on a 3-phase 220V system, use the formula: Amps = (kW x 1000) / (√3 x Volts). However, the specific amperage can depend on different factors, such as voltage and wattage ratings. 75-amp load safely. Let’s calculate a bit to see how much electricity does an on-demand tankless hot water heater use: Feb 19, 2021 · a 15000 watt heater on a 240 circuit should pull around 60 amps You need to make sure your controls will lock out the heat strips when it's only a little cold, usually if it's above 40 degrees you should never need to energize the backup heaters and that will prevent the unnessesary amp draw. Jan 19, 2023 · 10 kW Heat Strip Breaker Size The breaker size for a 10kW heat strip would typically be around 60 amps. 008333 amps of current are drawn to generate 1 watt of power, and 0. Let’s say that we have a simple 1,500-watt space heater running on a standard 120V circuit. . 45 amps to operate effectively. 3 amps. Find your heat But how can such a power-hungry appliance reduce the electricity bill? It all comes down to how many amps does a tankless water heater draw (since the voltage is always the same: 220/240V). 3 amps and 27. Oct 16, 2024 · Anyone know what the power draw is on these Chinese diesel heaters? Folks in this thread from another forum mention varying results. Lets say I have a 208V 3-phase heater (delta connection), with a heating element on each leg L1, L2, L3. This chart is provided by Elliott Electrical Supply, wholesale electrical distributor supplying electrical motors, wires, cables, conduit, breakers, and more. Check the specifications for the specific heater you have from the manufacturer’s instructions. Learn crucial safety tips and wiring practices to avoid circuit overloads while maximizing comfort. If you have an amplfier using 1600W of power on a 120v circuit, you can use the equation Current (Amps) = Power (Watts) ÷ Voltage to calculate that the draw of the amplifier is 1600 / 120 = 13. The blower is on the same circuit, so my math says roughly 4KW. Tech tip: inspect wire size on 10 kW heater Oct 22, 2023 · 40 Amp A 40 amp electric water heater is a popular choice for average-sized homes with regular hot water needs. This means that the heater will require a circuit that can handle at least 31. For that just fill the kW and Voltage value in the below two boxes and by pressing the calculating button to get the answer in Amps. The average American household uses 220 volts for P = V x I. 67 amps when operating at 240 volts. For heat production, gas furnaces do use natural gas or propane. Note: If motors are started more than once per hour add 20% additional KVA. Understand typical amp usage for different models, calculate energy consumption, and explore energy-efficient options to save on electric bills. (Table by Acme Electric Corporation). For a 10 kW 240V unit heater, use #8 AWG copper wire rated for 75°C. Ensure all connections are tight and comply with NEC guidelines. Sometimes it is a lot less than that. You cannot take chances with heavy-duty items like heaters. Click to expand Feb 9, 2022 · The emergency strip when activated uses 19+ AMPS on the 240V circuit as shown in thee building monitoring system. Purpose: It helps homeowners and electricians properly size electrical circuits for safe heater operation. – Air Conditioner: If you have a 12V air conditioning unit (which is rare), it might draw 10-15 amps while running. In this calculator, equivalence, you will find the chart and formula. Divide the watt rating by the voltage of the outlet. Apr 30, 2008 · Let me presume it is 240 volts, single phase. I would recommend 30 amps breaker for your air handler. I (amps) = P (watts) / V (volts) Example: We can determine how many amps a 30 kW tankless water heater uses on a 240-volt circuit by using the electrical power equation: I (amps) = 30,000W / 240V = 125 amps A 75,000 BTU heater draws 125 amps. Factors Affecting Amperage: Key factors influencing a heater’s amp draw include wattage, temperature settings, design, and the size of the room being heated. 15 KW means 15,000 watts, and to calculate amps, we divide it by voltage. Sep 16, 2022 · P = I x V. 73] = 41. For AC you need to enter power factor value too. Dec 28, 2023 · How Many Amps Does a Sauna Use? A smaller 6-7 kW heater requires usually 30 amps, which typically means 3x10A fuses. Here is the most basic example: How many amps does a 1500 watt heater draw? We use a simple electric power equation and express I (current, measured in amps): P = I × V or I = P / V To get the heater amp draw, we only need to divide power input (wattage) by voltage. The wire size to run this heater would be a #10 copper conductor. Furthermore, how do I know what AMP my heater is? What size heater do I need for a 15kW air handler? Most air handlers with 15 KW of strip heat. 833 Amps 12 Volts 200 Watts 16. A standard 20,000 BTU natural gas furnace will, on average, cost $208. Watt is the parameter to calculate how much power consumed by a load and how much power delivered to a circuit. Mar 8, 2025 · The word amp is short for "ampere," the standard unit of measurement used to measure electricity. These water heaters have a slightly higher wattage and draw more electrical current compared to the 30 amp models. Jun 28, 2024 · Example of Amps Draw Calculator For a 1500 watt space heater operating on a 120 volt circuit: Current = 1500 watts / 120 volts = 12. Example: If service factor is 1. 5. This is the smallest 6,000 BTU vs the biggest 6-ton mini split. How Do I Know How Many Amps My 3 Phase Heater Is? If you want to identify the number of amps a 3-phase heater uses, look at the readout. We will also show 2 examples of perfect baseboard settings for a 20-amp circuit. Water heater amp usage is quite easy to figure out. The most common type of wire used for this purpose is 10 gauge copper wire. 25 - 2 Amps, depending on the fan and pump setting. How many amps is 15Kw at 240 volts? Nov 30, 2011 · If a 10,000 watt heater rated for 240 volts is connected to 208 volts how many amps will the heater draw? What is the proper way to do this calculation? How Many Amps Does a 10kW Heat Strip Pull? Amps = 10,000W / 120V Amps ≈ 83. 167 Amps 12 Volts 180 Watts 15 Amps 12 Volts 190 Watts 15. For more information about Heater Amperages for Sentra Series and Regal Series mold temperature control units call the Advantage Service Department at 317-887-0729. Typically, these devices use a volt rating of 120 or 240 volts, and that will ultimately determine the energy consumption. Below you will find 3 examples of a kW to Amps conversion for: 4 kW central air conditioner (220 V). So I would be inclined to use a 40 Amp Breaker in the house breaker panel. My calculation for amps in each leg is 15KW*1000/ [208V*1. Learn how to prevent circuit overloads and ensure compatibility with your electrical system, keeping your space warm without the risks. 36 kW tankless electric water heater (240 V). 8 amps On a 230V circuit → 3. Oct 4, 2021 · How many amps does a diesel heater use? The good news is that the heater uses the most amps on start-up. A tankless water heater needs around 15 - 25 amps of current and operates at 120V. Dec 9, 2023 · Discover our amp chart for household appliances so you can make sure your power sources can handle your devices. 9 amps of current at 240V. You'll need to know what an amp is when determining the power needs for a water heater. Feb 4, 2025 · Discover how to determine the right amps for your space heater to ensure safety and efficiency. Can I use 2 40 amp breakers with #6 wire instead of one 80 amp on a #4 wire. It convert units from kw to amps or vice versa with a metric conversion table. Electric furnaces, for example, use electricity to produce heat and can use anywhere from 10,000 watts to over 45,000 watts of electric power. 73 x Volts x Amps Note: Cycles do not influence this data. Apr 16, 2025 · A typical tankless water heater uses between 30 to 50 amps, depending on the model and its heating capacity, with higher-demand units requiring more electrical current for optimal performance. The current system is on a 60 amp breaker and the HVAC guy said the Mar 5, 2021 · CLICK HERE to Discover the List of Electric Appliances & Their Wattage Usage Chart on Generatorist. 7 amps. The supply breaker would be a two pole 30 amp breaker. Dec 9, 2023 · FAQ How much power does a 30 amp RV use? Since RVs typically only draw 120 volts, a 30 amp RV should never use more than 3600 watts. However, most RV air conditioners run on 120V AC and are typically powered through an inverter or a generator. Calculating this equation gives us approximately 45. Aug 21, 2022 · A 7. Use a lockable fused or non-fused disconnect switch rated for at least 40 amps, located within sight of the heater. This page on heat pump amp draw and related electrical topics begins with a heat pump amperage chart followed by a chart showing heat pump breaker size and wire size. This article provides essential guidance on selecting the appropriate amperage, understanding heater types, and calculating wattage. A traditional unit with 4500 watts needs 30 amps and #10 wire. For a 240V heat strip: Amps = 10,000W / 240V Amps ≈ 41. Feb 13, 2024 · The current drawn by a 1500-watt inverter for a 48 V battery bank is 37. For example, at 120 volts, 0. Air conditioning and heat pump loads on a generator. Alternatively, read the printed data sheet accompanying the heater. So, Amps = (10 x 1000) / (√3 x 220) = 26. At the very least isn't the continuous load on a 10kw system over 80% of 50 amps (42 amps) and thus by NEC you have to go up to 60 amp? Jan 12, 2021 · How many amps does a 10 kw heater use? The Trane salesperson said according to Trane specs 10 kw is really 9. Feb 4, 2024 · How many amps does a heat pump use? The amp usage of a heat pump can vary depending on the specific model and size, but generally, they can range from 10 to 40 amps. Watts is generally defined as the Jul 25, 2006 · The booklet says max overlaod protection @240v is 45 amps or @208 is 40 amps. How big of breaker do I need for 3 electric heaters? These 3 heaters would require 12/2 wire and a 20 Amp 2-Pole breaker if they were to all be placed on the same circuit. Most outlets have 120 volts and some 220 volts. 67A Therefore, a 10kW heat strip would pull approximately 83. The main running cost associated with gas furnaces is the price of this fuel. For example, a 4500-watt electric water heater typically requires a 10-gauge wire to handle the 18. How many amops does it draw? Exactly 12. Therefore, a 10kw electric heater needs around 45. On average, an electric water heater draws 14. 5 amps, vital for assessing if your circuit can handle this load without issues. Dec 9, 2020 · What size breaker do I need for a 7. 5 × 1000 ÷ 230 = ~15. The 30 amp has the blower and 1-5KW heater, the 60 amp has the other 10 KW of strip heat. In most cases you have 240 volts, so 15,000 / 240 = 62. You can also use ohm’s resistance law to Nov 12, 2013 · I am programming an app for ordering 3 phase heaters, and I have an argument to resolve with a coworker. Amps = 5000/230 =21. 6 kW @ 240 volts - which will give you 40 amps just like this one has listed - my guess is the manufacturer did a poor job of labeling this unit. 5 kilowatt (kW) heater will draw about 31. Three Phase Motor Full Load Amps Table (1) When motor service factor is greater than 1, increase full load amps proportionally. 25. What will a 10kW heater wired to 480 volts draw? Dec 20, 2024 · – Furnace: A propane furnace (which uses 12V power to operate its fan) can pull 3-7 amps while in use. 5 amps This calculation indicates that the heater draws 12. Tankless Electric Water Heaters The electric tankless water heater requires a lot of amperage compared to the tank type. 6 amps, which is 52 amps. 18 amps per phase. Start-Up (Surge) Amperage Compressors and fan motors often draw a higher amp surge briefly during start-up —known as Locked Rotor Amps (LRA). Aug 21, 2022 · What kind of wire do I need for a 7500 watt heater? If you are looking to wire a 7500 watt heater, you will need to use a wire that can handle at least 30 amps. 667 Amps 12 Volts. This can be calculated using the formula: Amps = Watts / Volts. How many amps does a 2KW heater draw? A 2Kw 230 volt rated heater will draw 8. It assists in proper electrical sizing and helps prevent system overloads. This comprehensive guide covers different heater types—like electric radiant and ceramic—along with tips to calculate amp draw. I (amps) = 30,000W / 240V = 125 amps Such a heater draws 125 amps (you need several 20-amp or 30-amp breakers for installation). Jan 2, 2025 · Discover how many amps electric space heaters use and learn to optimize your home heating efficiently. Goodman 5k usually comes with 30 amps breaker. we paid for 10K strips, which actuyally ar 9. Jun 3, 2025 · Wire Size, Amps and Breaker Size too: The electric furnace size calculator goes beyond a kW – kilowatt – recommendation and provides electrical specifications for wire size and breaker amps. Choose the Ideal Residential Water Heater Understanding the calculation of how many amps a water heater uses can be helpful knowledge. It used to be a 10 kw could be used with #6 but for some reason the manufacturers started to use larger fans or something because the amps varied somewhere between 56 to 59 amps. 1 kW washing machine (220 V). Heat Pump Amps How many amps does a heat pump use is answered in this chart. 5 kW heater: On a 208V circuit → 3. Convert the power in kilowatts to current in amps or find the power given the amperage rating of a generator or other electrical equipment. 6 amps. One person with a Webasto measures a startup ampherage of 17/18 amps, whereas someone with a Chinese unit measures 10 amps startup. Jan 24, 2025 · Learn how to convert 10 Kw to Amps accurately and efficiently using a simple calculation to help you optimize your power usage. This is because the maximum fuse breaker for this type of device is typically 60 amps. How Many Amps Does a 5000-Watt Heater Draw? A 5000-watt space heater draws between 20 to 42 amps of electrical currents for each hour it is plugged in. . All mini split specs sheets listed rated May 12, 2012 · Examine the back and base of the baseboard heater and locate the manufacturer's data plate. This is expressed as a number followed by the letters "kW," the abbreviation for kilowatts, or thousands of watts. 25 amps when it is operating at full capacity. Apr 12, 2022 · To convert kW to Amps, we can use the equation for electrical power: Power (kW) = I (A) * V (V) You can use this kilowatt to amperes converter. The wire from the breaker to the disconnect is AWG #6. It could help you choose the type of water heater wisely and get the best option for your home. Jan 9, 2025 · Now, you’re wondering, how many amps does a tankless water heater use? Generally, tankless water heaters draw about 42 to 167 amps. In order to reduce the amp draw, almost all the electric tankless water heaters operate on a 240-volt circuit. What size amp breaker do you need for a 1,500-watt space heater? First, you need to calculate how many amps does this heater draw like this: Current (Amps) = Power (Watts) / Voltage (Volt) In our situation this is: Current = 1,500W / 120V = 12. 5 kw heater? So 7. If they malfunction, or if you attach a powerful heater to a weak circuit, you may burn your house to the ground. If you had a heater that was only drawing 30 amps, (30 x 240 = 7,200 watts), much smaller heater strip. 5kW at 240V is 31 Amps. 5 Amps In general, we can say that mini splits draw anywhere between 2. For DIY installation, you’ll need many 20-amp and 30-amp breakers. Sep 5, 2025 · Find out how many amps an electric water heater uses based on its tank size. We have calculated amp draws for tankless water heaters ranging from 10 kW to 40 kW and summarized them in the table here: How Many Amps Do 10-40 kW Electric Tankless Water Heaters Draw? May 5, 2023 · How Many Amps Do Electric Tankless Water Heaters That Range From 10-40 kW Draw? For the sake of all of these calculations, we will assume that the heater is connected to a circuit that operates at 240 volts. Explore the factors affecting amp usage and learn to save on electricity costs. In the case of a 1500W 120V heater, the calculation looks like this: How many amps does a water heater use? You will need to know the current draw if you want to adequately size a breaker, a wire, or if you want to run a water heater with a generator. Your V is 240v, so your amp draw for heat strip will be around 20 amps. An amp is a single unit of an electrical current. Here, you’ll learn how to determine the right amperage for a tankless water heater. Kilowatts to amps Calculator (kW to A): Using our kW to Amp calculator, you can convert DC, Single phase and three phase kilo Watts to Ampere Online. Oct 18, 2024 · When you say the old type, no mater how old it is, a 15 KW would require the same power. 5 by 1. 31 giving 1820 watts,as you can see the Amps and Watts vary with the voltage. May 14, 2025 · When these kick in, the amp draw can surge. Learn about amperage ratings, the relationship between watts, volts, and amps, and how to select the right heater for your needs. Install a double-pole 40-amp circuit breaker to handle the 41. Running time is a lot lower with the heater barely drawing over 2 amps. Now, you may be wondering how many amps does a gas tankless water heater use. Chart showing how many kw and amp an air conditioner & heat pump uses. This is based on the heating capacity of 30,001 BTU/H to 35,000 BTU/H and the voltage of 208V/230V. Jan 11, 2025 · If you want to know the exact answer to “What size breaker for 8kW heat strip", read this brief, info-packed post. Jun 8, 2024 · A 10kw heating element operating on rated 240v will have a Btu h output of? A 10kW heating element operating at 240V will have a BTU/h output of approximately 34,120 BTU/h. Nov 13, 2022 · My question: how many amps would something like this likely draw? If I put in a 50A breaker, how likely is it that the heat strip will trip the breaker? I know that it won't regularly pull all 60 of those amps, but do you think I can get by with the 50A breaker? Thanks in advance. For a 208-volt circuit, a similar breaker size or slightly larger may be needed, depending on local electrical codes. The old Goodman had 60 amp breakers but perhaps it had a 10 KW strip. Stay informed for a Dec 19, 2011 · Breaker Size Based on Wattage The size of a breaker is determined by the amp draw. 80 per month to run. tivoavf ucqldb dlpcuarq paij hopk 8q uthddf gmimg ugi 5pghkgi