A standard 1,500-watt electric heater produces 5,115 (1,500 times 3.41) Btu per hour. ft. of space. Understanding how to convert watts and British thermal units can make it easier to compare heaters and find the best electric heater for your home. BTU is the amount of energy needed to raise one pound of water one degree Farnheit (at sea level). In temperate climate where the external temperature ranges from 32ºF to 68ºF, the wattage ratio can be increased from 10 watt per square foot to 12.5 watts per square foot. Measure the length and width of your room using a tape measure. Multiply the 1,000 watts by 3.41, and you will are left with a heater that produces roughly 3,410 BTUs of heating power. Q: HOw many square feet will a 1500W heater heat? All space heaters clearly identify this number in the product description or on the packaging, so you don’t have to worry about doing any additional calculations. Multiplying this by 10 reveals that a 1,440-watt heater is required to heat the space. This is a good heater for the money. Shop DuraHeat 5000-Watt Electric Garage Heater with Thermostat in the Electric Garage Heaters department at Lowe's.com. If you have an electric heater, calculate 10 watts per square foot of floor space. However, space heaters can become an inefficient waste of energy if not used properly. A: A BTU (British Thermal Unit) is the amount of energy needed to heat 1 pound of water 1 degree Fahrenheit. Besides the room size, other room conditions such as room insulation and outdoor temperature also needs to be considered. The math may be slightly bothersome to calculate so do feel free to use our sizing calculator to your convenience! The power P in BTUs per hour (BTU/hr) is equal to 3.412141633 times the power P in watts (W): P(BTU/hr) = 3.412141633 × P(W) Keep in … All space heaters clearly identify this number in the product description or on the packaging, so you don’t have to worry about doing any additional calculations. ft. comfortably. © Copyright 2020 Hearst Communications, Inc. The Family Handyman suggests a 1,000-watt/3,410-Btu heater for rooms under 100 square feet, a 1,500-watt/5,115-Btu heater for rooms measuring 100 to 150 square feet, and a 2,500-watt/8,525-Btu heater for rooms between 150 and 250 square feet. We often refer to the British Thermal Unit as a BTU, but the rating is actually the BTUs per hour, or BTU/h. Also great for winter power outages and emergency situations as it provides both heat and light. We know how important it is to make your home comfortable, but also know how difficult the process can be. A electric water heater needs 4,500 watts to start the appliance and 3,500 watts to continue powering the heater. Therefore, we advise that homeowners apply some safety precautions if intending to leave it turned on overnight. Create a comfortable environment with this comfort zone industrial heater in your workspace or garage. Your email address will not be published. This information can be helpful when comparing electric and nonelectric heaters, which are typically rated in Btu. That's equivalent to a 10-by-15 foot room, an 11-by-14 or one sized to 12-by-12 1/2 feet with a standard 8-foot ceiling. Inspect the label or metal plaque on your electric heater to find the wattage. Q: How many square feet will 5000 BTU heat? swap units … That is a huge sum of money that you can save on if you are able to use your energy wisely and efficiently to heat up your house. A: Assuming a ceiling height of 8 ft. and the room is properly insulated in a climate above 68ºF, a 1500W heater will heat a room of 150 sq. A 1500W heater will heat a 150 sq. First, you’ll need to determine the size of the room where the space heater will … Thermostat will control from 40 to 85°. According to the maximum power consumption of the heater, we will be able to simply determine how much BTUs of heat it will produce. A standard electric room heater may have a rating of 1,500 watts. Bracket can be wall or ceiling mounted at a … This means if you have a 500-foot garage, you’ll need a 5000-watt electric heater. Best Wearable Air Purifier – Protect Yourself Today! Let it also be where the body desires to be! Determine whether you have a 120 or 240 watt circuit for your heater (this will be labeled in the electrical panel) to get the correct heater for your power availability. Did you know that heating accounts for 42% of your home utility bill on average? How Do You Determine the Size of the Rinnai Heater You Need? This is because there are still a few factors to consider that might throw us off. It is most often used as a measure unit in steam generation, heating and air conditioning industries. 1 watt is approximately 3.412 BTU per hour. Estimate BTUs (For Gas) : If you’re using a gas heater, calculate the approximate BTUs by multiplying the wattage by 3.412 because 1 watt is approximately 3.412 BTU per hour. Multiples of watt hours, often kilowatt hours, are used more frequently than Btu / h, even in the United States. Measure the Room. A: 5000 divided by 3.41 = 1467. Example. 1 BTU is the equivalent of 1,055 joules or .293 watts. For temperatures above 68ºF, there is no need to tweak the ratio. ft. As a general rule of thumb, the ratio to consider is 10 watts to 1 sq. The unit symbol of British thermal unit per hour is Btu/h, or sometimes BTU/h. Air Conditioner Amperage Chart (From 5,000 BTU To 18,000 BTU) On the amperage chart above we have charted the maximum estimated amps, an AC unit of 5,000 – 18,000 BTU is estimated to draw. A 1500-watt (about 5,115 BTU) heater, therefore, would be ideal for a 1500/10 = 150 square-foot-room. One (1) watt is equivalent to 3.41 BTU. When sizing a heater, the rule of thumb is to allocate 10 watts of heat to every square foot. So, we will do this by multiplying the maximum number of watts by 3.41 and the result will be the number of BTUs your heater can deliver. However, we know that totally defeats the purpose of the heater then! For example, a 10 x 12 room with 10-foot ceilings would require a 1500 watt space heater. If your room is poorly insulated or has a faulty window that lets in cold air, you will also need to factor in for greater wattage. 1200 watt = 4094.4 BTUS you will need to remove about 4100 BTU/hr Multiply the wattage of your unit by 3.41 per watt to calculate Btu. The British Thermal Unit, or BTU, is an energy unit. One watt is equal to about 3.41 BTUs per hour. (For example: 30 minutes per day is 0.5) Power Use (Watts): Enter the average power consumption of the device in watts. Tip. ft. x 10x 1.25 = 1500 watts. Designed for use in harsh environments and using fan-forced air, this 5000-watt, 17,065 BTU ceiling-mount heater distributes heat across a wide area to keep your space comfortable. A: 5000 divided by 3.41 = 1467. With a portable heater (which is what you're talking about if it's 5,000 BTU), you can estimate heating ability with the 10 - 15 watt per square foot rule of thumb. In particularly cold regions (below 32ºF), homes will experience way more heat loss than a house in a warm region. This means getting the correct wattage that corresponds to the size of the room. What is a BTU? Save my name, email, and website in this browser for the next time I comment. We use cookies on this site to optimize site functionality and give you the best possible experience. We created Home Living Lab because we want to share what we have learnt about creating that ideal home climate. It generates 1,500 watts of electricity per hour and produce 5,100 BTUs of heat. Conversely, if your room is heavily insulated, then you can reduce the wattage by 20%. The Family Handyman suggests a 1,000-watt/3,410-Btu heater for rooms under 100 square feet, a 1,500-watt/5,115-Btu heater for rooms measuring 100 to 150 square feet, and a 2,500-watt/8,525-B… This BTU Calculator will determine what hearth product size is required with only a few steps and information such as square footage (sq ft). With the 5000 watt resistance element it adds another 5000W x 3.412 BTU/watt-hr = 17,060 BTU/hr, raising the total to (17,060 + 4200 =) 21,260 BTU/hr in full hybrid mode for fast recovery. Learn More. 5kw heat strips for a 1200 sq ft house. The ratio of 10 watts to 1 sq. How to Lower Your Electric Bill With Window Air Units, How to Calculate the Kilowatt Hours for a Small Heater, Ways to Calculate Electricity Consumption for One Room, The Family Handyman: Installing Electric Heaters, How to Estimate the Right Size of Gas Boilers for the Square Feet of the House, How to Tell the Wattage of Electric Baseboard Heaters. Emily Beach works in the commercial construction industry in Maryland. Required fields are marked *. The perfect garage or shop heater for occasional, temporary comfort heating. Typically, an increase of 20% wattage would be a good place to start depending on how poor the insulation is. To find watts when you know Btu, divide Btu by 3.41. Generally speaking, you should increase the wattage of your space heater an extra 25 percent for every 2 feet of extra space. Home is where the heart is. From. Convert 20000 BTU/hr to watts: P (W) = 20000 BTU/hr / 3.412141633 = 5861.42W Calculate Btu by multiplying the number of watts by 3.41. The directional air flow louver What is 5,000 watts in btus per hour? Multiply the square footage of the room by the estimated 10 watts of electric heat required to heat each square foot. Take the Btu figure you calculated in Step 2 when purchasing or comparing heating systems. A 1500 Watt heater will cost the same to run whether it is 120 or 240 Volt. The rate at which heat is lost from your room depends on the external environment as much as the construction scheme of the house. Measure the length and breadth of your room (in ft) and multiply these two figures together to find out the area of the room in sq. For example, a 10 ft. x 12 ft. room, for example, requires a 1200 watt space heater (120 sq. ft.. For example, if the length of the room is 10 ft. and the breadth of the room is 8 ft., then the room area is 10 ft. x 8 ft. = 80 sq. NewAir Portable Garage Heater, Electric Infared Fast Heat for up to 800 sq ft, 240V 30 amp 5600 Watt, G56, Black, Hardwired 4.1 out of 5 stars 236 $151.90 $ 151 . Therefore, it roughly translate to a 1500W heater. Calculate how many BTUs you need to heat a room or even a house with a wood-burning, pellet or gas fireplace, insert or stove. 5000 BTU AC unit spends 417 - 625 W, depending on the energy-efficiency. How to Find How Many BTUs Your Furnace Should Be More importantly, 0.29 BTUs per Watt. 90 $199.99 $199.99 An undersized unit leaves an unwanted chill in the air, while a heater that's too big for your space wastes energy and can leave you uncomfortably hot. With the 2250 watt heating element the resistance heater adds 2250 x 3.412= 8530 BTU/hr to the 4200 BTU/hr for a total of 12,730 BTU/hr. 5kw Heat Strips. Determining BTU Power For Your Outdoor Living Space. A 5,000 watt generator generator is capable of running a electric water heater, but caution should be taken not to exceed the generator's total 5,000 wattage rating. It is approximately the energy needed to heat one pound of water by 1 degree Fahrenheit. BTU Pre Hour : The British thermal unit per hour is a measure unit of power, which is a traditional unit. Also to know, how many square feet will a 5kw heater heat? How to convert BTU/hr to watts. Size represents a primary concern when shopping for an electric heater. An easy way to save on heating costs is to use space heaters instead of the central heating system when you just intend to heat up part of the house. If you think that the insulation is moderate and decent, you can skip this step. For example, a 12- by 12-foot room measures 144 square feet. Visit our guide here to find out more! To convert watt to BTU, it can be obtained by multiplying the wattage by 3.41. Our guide will tell you exactly how to size your space heater in 5 easy steps so that you do not waste energy and money getting a large space heater that is too powerful or one that is too weak for your room. ft. x 10 = 1200 watts). Check how many watts do 6,000, 8,000, 10,000, 12,000, 15,000 and 18,000 BTU units use. Therefore if you happen to be living in these extreme cold situations, you will need to increase the wattage ratio from 10 watts per square foot to 15 watts per square foot when you’re estimating space heater size. Easy to install, simple circuitry, heating elements vs. spiral wire, SState thermostat, etc. The average life span of an electric heater averages about 5,000 hours. To convert from watts to BTU, multiply watts by 3.4. To convert a watt to BTUs, the factor is 1 kilowatt of power = 3412.1416 BTU/hr 3.412 BTUs equal a watt. 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Will 5000 BTU heat energy needed to raise one pound of water by 1° Fahrenheit (... Degree Fahrenheit find the wattage it also be where the body desires to!. Ft. x 12 ft/ = 120 sq helpful when comparing electric and nonelectric heaters, which typically... Insulation with easy DIY methods like weatherstripping and caulking a 10 ft. x 12 ft. room, an or. To about 3.41 BTUs per hour then you can reduce the wattage of your space (! Created home Living Lab because we want to share what we have learnt about creating that ideal home.... Will experience way more heat loss than a house in a warm region energy released by burning one.! Generates 1,500 watts of heat in a warm region however, we advise that homeowners apply some safety precautions intending.

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