Natural gas fireplace BTU output rating The loss is due to several factors, including having the heat escape before it is transferred to … Learn more about how Advantage Engineering, Inc. uses cookies by contacting the site ), 1 Kilowatt (kW)   =       3412 BTU Per Hour, 1 Kilowatt (kW)   =       1000 Watts Per Hour, 1 Kilowatt Hour (kWH) will evaporate 3.5 pounds of water from and at 212ºF, Amperage – Single Phase (1 Ø)      =       KW x 1000                   or      WATTAGE Convert 5000W to BTUs per hour:                                                                       VOLTAGE x 1.732                  VOLTAGE x 1.732, BTU OUTPUT        =       GPM x Temperature Rise x 8.33 Lbs/Gallon x 60 Minutes, BTU INPUT           =       (GPM x Temperature Rise x 8.33 Lbs/Gallon x 60 Minutes), % EFFICIENCY    =       (GPH x Temperature Rise x 8.33 Lbs/Gallon) The first hour rating is the number of gallons of hot water the heater can supply per hour (starting with a tank full of hot water). Please refer to the Advantage Engineering Privacy Policy. A BTU describes the energy content or heat value of fuels. It’s 2012 already and in this issue we will try to give you plenty of information and useful charts related to water heating. ENERGY SOURCE                        BTU PER HOUR, 1 Pound                                         =       10,000 – 15,000, 1 Ton                                              =       25 Million (app. Boiling time of water can be calculated with the volume, energy, efficiency, start and end temperature. By definition, a British Thermal Unit is the amount of heat needed to raise one pound of water, 1° Fahrenheit. It has a ‘Convert' button which performs the conversion from BTU/hr. - One cubic foot of LP gas - 2516 BTU This chart refers to low pressure LP, after regulation, Standard nominal pressure at the burner for Liquid Propane Gas is 11” of water column. P (W) = P (BTU/hr) × 0.29307107 = P (BTU/hr) / 3.412141633. They are true time savers. With a 3 hour design reheat time, this means about 9,000 BTU per hour. Example. HOW MANY BTUS DO I NEED FOR MY ROOM OR HOUSE? It is a conversion calculator that is used to convert the power in BTU per hour (BTU/hr.) The best part is that you won’t have to read too much from me as these charts and formulas speak for themselves! Each individual room should be calculated for required amount of BTU’s to satisfy demand and then this number added together. Looking in the Runtal type “R” radiator Heating Capacity chart, we see that an R-4 radiator gives us the required 445 BTUH/FT at 160°F AWT. Heating BTU Calculator When shopping for heaters, many people make the mistake of choosing the wrong size for their actual needs. A British Thermal Unit, or BTU, is an international energy measurement. required to raise 1 pound of water 1 degree Fahrenheit at sea level. One BTU is the amount of heat energy required to raise one pound of water by 1ºF. Water weighs 8.33 pounds per gallon so we can calculate that one gallon of water requires 8.33 BTU to raise the temperature 1ºF. Privacy Statement: we will not sell, rent or release any personal information you share with us to third party vendors. BTU stands for British Thermal Units and is a unit of measurement for energy. This site uses cookies to offer you a better browsing experience. 1W = 3.412141633 BTU/hr . per linear ft. with 65˚F entering air † Millinches per foot. A BTU or British thermal unit is a unit of energy. Furnace size for a 3,000 square foot home range from 105,000 BTU to 180,000 BTU, depending on the climate zone you’re in. 1 BTU is the energy needed to heat 1 pound of water by 1° Fahrenheit. A British Thermal Unit, or BTU is a unit of measurement of energy. administrator at admin@advantageengineering.com By closing this banner, scrolling this page, clicking a link or continuing to browse otherwise, you agree to the use of cookies. Thanks and we’ll see you in the next article! HOT WATER RATINGS BTU/HR. 1 BTU/hr = 0.29307107 W. So the power P in watts (W) is equal to the power P in BTUs per hour (BTU/hr) times 0.29307107 and is equal to the power P in BTUs per hour (BTU/hr) divided by 3.412141633:. You will see BTU used when referring to the amount of heat output a radiator emits to increase the heat in a room. Advantage Engineering, Inc. 525 East Stop 18 Road Greenwood, IN 46143 317-887-0729. https://www.ascovalve.com/Applications/ProductSearch/ProductSearch.aspx?ascowiz=yes. The amount of energy that is needed to either cool or heat one pound of liquid water one degree Fahrenheit at a constant pressure of one atmosphere. To properly size a storage water heater for your home -- including a heat pump water heater with a tank -- use the water heater's first hour rating. Hi John, it takes the same amount of energy to heat water from 48 degrees to 52 degrees as it takes to heat water from 58 degrees to 62. When calculating mass and volume flow in a water heating systems at higher temperature - the specific heat should be corrected according the figures and tables below.. Usage: When BTU requirement is known (most applications): - enter the BTU requirement - Temp In, Temp Out, and GPM are shaded for Hot and Cold - enter two of the three shaded portions for Hot - enter two of the three shaded portions for Cold Download the free Formula Cards (at right) for more information. The appliance's heating power is measured in BTUs per hour, per foot of heater width. 1 Btu = amount of heat required to raise (or lower temperature of one pound of water 1oF 1 ton refrigeration = 12,000 Btu/h = 200 Btu/min 1 watt = 3.412 Btu/h 1 horsepower = 2545 Btu/h 1 lb = 7000 grains 1 ft (head) = 0.433 psi 1 square foot EDR (equivalent direct A BTU is an abbreviation for British Thermal Unit, which is the amount of energy Firewood BTU Chart. -2°C to + 2°C) or from fluid to gas (e.g. They are proven mathematical formulas of algebra and geometry. P (BTU/hr) = 3.412141633 × P (W). A BTU is a relatively small amount of energy... about equivalent to the heat generated by striking 1 stick match. (GPM x Temperature Rise x 8.33 Lbs/Gallon x 60 Minutes), (GPH x Temperature Rise x 8.33 Lbs/Gallon), Maintaining Drain, Waste, And Vent Systems in Buildings, Hub Spotlight: Everett Knudsen, 907 Plumber—Into the Wild, and into the Trades, Flexibility of PEX and Press Fittings the Right Solution at North Salt Lake City Apartment Complex, The MODA Supply Box is a Win for this Ohio Builder, Hub Spotlight: Danny Gronendyke — How It Be with DannyG, Hunter Botto: New PHCC President Navigating Through Turbulent Times, Maintenance Meets Sustainability at Chicago Office Building. We are open and ready to support your business. A BTU is measured by the amount of energy required to raise 1 Lb of water to 1° Fahrenheit. BTU/Hr INPUT, Time in Hours      =       (GPH x Temperature Rise x 8.33 Lbs/Gallon) A hydronic baseboard heater is a water or steam-based radiator for keeping your home at a comfortable temperature, located unobtrusively at the foot of your wall. 98°C to 102°C) this does not hold true any more. A BTU is an abbreviation for B ritish T hermal U nit, which is the amount of energy required to raise 1 pound of water 1 degree Fahrenheit at sea level. RINNAI strongly suggests that you only purchase our products from RINNAI Independent Dealers and that you have the products installed only by licensed professionals who have attended a RINNAI installation training class.licensed professionals who have attended a RINNAI installation training class. The heat output or 'BTU' (British Thermal Unit) calculator is a great way to work out how much radiator power you need. BTU is often used as a point of reference for comparing different fuels. Water Heating Time Calculator. All features, specifications and pricing are subject to change without notice or liability. The weight of water is 8.33 lbs. BTU Calculator. 1 watt is approximately 3.412 BTU per hour. *Ratings at 140˚F and lower temperatures determined by multiplying 150˚F rating by the applicable factor specified in Testing and Rating Standard for Baseboard radiation. The heat energy used during the transition to water vapor is lost from the body of water reducing the overall temperature. BTU/hr to watts conversion calculator How to convert watts to BTU/hr. per linear ft. with 65˚F entering air † Millinches per foot. Product innovation and improvement is our constant goal. Evaporative losses can account for 50% of swimming pool heat loss. A water heater is ranked by BTU input, but really means BTUs/hr; thus a 33,000 BTU heater can heat 33,000 pounds of water by one degree in an hour; or, 330 pounds by 100 degrees. 1 BTU = 1,055 joules, 252 calories, 0.293 watt-hour or the energy released by burning one match. *Formula changes with fluids others than straight water. We will have to do a separate article on Steam in a future issue. A British Thermal Unit (BTU) is a measurement of heat energy. What Are BTUs. The charts and information above are all essential to water heating. Rise (∆T)   =           (BTU/Hr INPUT x % Efficiency), Electric                =       (kW INPUT x 3412 BTU/kW x % Efficiency), Gas                     =                (BTU/Hr INPUT x % Efficiency), % of Hot Water Required      =       (Mixed Water ºF – Cold Water ºF), 1 Cubic Ft   =       62.428 Pounds (at 39.2ºF – maximum density), 1 Cubic Ft   =       59.83 Pounds (at 212ºF – boiling point), Water expands 4.34% when heated from 40ºF to 212ºF, 212ºF                                    0 Feet (Sea Level), 210ºF                                    1000 Feet, 208ºF                                    2000 Feet, 207ºF                                    3000 Feet, 205ºF                                    4000 Feet, 203ºF                                    5000 Feet, 201ºF                                    6000 Feet, 199ºF                                    7000 Feet, CLOSED VESSEL BOILING POINT @ PSI @ Sea Level, 212ºF                                    0 PSI, 240ºF                                    10 PSI, 259ºF                                    20 PSI, 274ºF                                    30 PSI, 287ºF                                    40 PSI, 298ºF                                    50 PSI, 316ºF                                    70 PSI, 331ºF                                    90 PSI. There is a lot of other information that we could add such as Steam. It is also good to use the online tools and calculators. The internet is full of helpful resources to get the job done quicker. Here are a few links to some useful websites: WEBSITE/PROGRAM                                         WEB ADDRESS, Amtrol Expansion Tank Sizing                                   https://amtrol.com/support/sizing.html, Engineering Toolbox Calculators                      https://www.engineeringtoolbox.com/, State Water Heater Sizing (Online)                          https://www.statewaterheatersizing.com/, AO Smith Water Heater Sizing (Online)            https://www.hotwatersizing.com/, Lochinvar Water Heater Sizing (Download)     https://www.lochinvar.com/sizingguide.aspx, Cylinder Calculator (Storage Tanks) / Other Math Calculators https://www.calculatorfreeonline.com/calculators/geometry-solids/cylinder.php, Electrical/Mechanical/Industrial/Civil/Chemical/Aeronautical Calculators https://www.ifigure.com/engineer/electric/electric.htm, B&G System Syzer (Piping/Pressure Drop Tool Download) https://completewatersystems.com/brand/bell-gossett/selection-sizing-tools/system-syzer/, B&G Selection and Sizing Tools (Pumps, Regulators, Steam and Condensate) https://completewatersystems.com/brand/bell-gossett/selection-sizing-tools/, Taco Pump Selection Wizard (Online Pump Selector)                                        https://www.taco-hvac.com/en/wizard_pumps.html, Lawler Mixing Valve Sizing (Online – account setup) https://www.lawlervalve.com/index.php?p=page&page_id=Sizing_Program, DSIRE Database of State/Federal Renewable Energy Rebates      https://www.dsireusa.org/, ASCO Valve Online Product Selector (Valves – solenoid, pilot, pneumatic, etc.) The 72,000 BTU unit with 85% efficiency has an output of 61,200 BTU, which is more than the 80,000 BTU unit that was less efficient. 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