STEP 1 Determine how many BTUs of heating and tons of AC you need Method 1 Manual J Calculation The best way to determine the perfect HVAC unit size is to have a Manual J calculation done for your house The Manual J calculation is the most precise measurement available because it considers factors like Square footage Climate zone Ductwork.
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Actually BTU which is called British Thermal Units is used to measure the cooling capacity of an AC system This can be measured by the formulae Basic Form Of Calculation To calculate the size multiply the length of the room or area Then a practical number multiply by 25 BTU.
Live Chat0 444 cubic yards 12 ft 3 Total volume 0 444 cubic yards 12 ft 3 Concrete needed 0 80 tons 1 596 lbs Concrete needed bags 19 95 bags of 80 lbs each or.
Live ChatFind the volume of your room in cubic feet This is done by measuring the length width and height of the room in feet and multiply all the three dimensions together Volume Width X Length X Height cubic feet Step 2 Multiply this volume by 6 C1 Volume X 6 Step 3 Estimate the number of people N that will usually occupy this room.
Live Chat1 to 2 boulders 25 boulders per ton 2 to 3 boulders 4 to 6 boulders per ton 3 to 4 boulders 1 to 2 boulders per ton 4 to 5 boulders 1 boulder per ton CALCULATE A CUBIC YARD length x width x depth divided by 27 the cubic yard use 5 for 6 inch measurements 1 YARD COVERS A AREA AT 2quot deep 162 square feet 3quot deep 108.
Live ChatHigh Performance Home 1000 sfton or more Weve done a lot of load calculations here at Energy Vanguard and I dont think weve had a single new home come in lower than 1000 sfton I built a house here in Georgia that came in at about 2000 square feet per ton and we recently worked on another one that was higher than that This number.
Live ChatJan 16 2017018332The conversion of tons in an AC unit to BTU is simple 1 ton 12 000 BTU So that means that a 2 ton AC unit will cool up to 1500 square feet SEER and unit cost SEER is the measurement of the efficiency of an air conditioning unit It stands for Seasonal Energy Efficiency Ratio This is the calculated efficiency of air conditioners and heaters.
Live Chat1 short ton 2 000 pounds of coal consumed by the electric power sector 18 875 000 Btu 1 kilowatthour of electricity 3 412 Btu Examples of converting energy sources in different physical units to Btu Example 1 You have a natural gas furnace in your home that used 67 000 cubic feet of natural gas for heating last winter.
Live ChatPump efficiency decimal value Example Power Required to Pump Water The power required to pump 100 lmin water an elevation of 10 m ex friction loss in piping and efficiency 1 0 can be calculated as P 100 litermin 10 m 1000 kgm 3 6116 10 3 1 0 0 16 kW.
Live ChatAn example you can reference If a furnace is listed with an input rating of 100 000 BTUs and an efficiency rating of 80 it would produce 100 000 Btu input X 80 efficiency 80 000 Btu actual output If the same 100 000 BTU furnace has an efficiency rating of 93 it will produce 100 000 Btu input X 93 efficiency 93 000 Btu actual output.
Live ChatCoverage 198 sfton 1 inch thick 132 sfton 2 inches thick 66 sfton 3 inches thick.
Live ChatIn the US a 40 pound bag measures between 0 5 and 0 75 cubic feet The Soil Calculator bag estimator is based on 0 75 cubic feet per bag Calculations If you want to do the calculations by hand then skip Step 4 above and do the following 1 Make sure all measurements are in the same units usually feet.
Live ChatWhile your air conditioner may vary depending on the size of your home and where you live a 3 ton central air conditioning unit is common in many homes The average 3 ton air conditioner operates at around 3500 watts per houror 3 5 kWhwhile in use.
Live ChatJul 13 2017018332At standard conditions air weighs 0 075 pounds per cubic foot A three ton air conditioning system moving 400 CFM per ton will have 1 200 CFM of air flowing through the system 1 200 CFM multiplied by 0 075 lbs per cubic feet equals 90 lbs delivered each minute Ninety pounds times 60 minutes per hour equal 5 400 pounds of air.
Live Chat1900 square feet X 40 heating factor from the chart above 76 000 Btu required to heat your home Then to calculate the output on a given gas furnace multiply its efficiency rating by its listed input rating to determine the actual Btu output of heat.
Live ChatFor example the silo is 50 feet long by 30 feet wide and the silage averages 12 feet deep 50 ft x 30 ft x 12 ft 18 000 cubic feet 18 000 cubic feet x 40 lbcubic feet 720 000 lb silage 720 000 lb of silage 2000 lbton 360 tons of silage in this silo Tom Dorn UNL Extension Educator.
Live Chat1 Yard 27 cubic feet 3 x 3 x 3 1 Yard 10 x 10 area 100 sq ft approximately 3 inches deep You can calculate the square footage by multiplying length x width i e 30 x 5 150 sq ft 1 5 yds 3 thick Top SoilMushroom Soil Yardages 1 Yard of Top SoilMushroom Soil 80 sq ft.
Live ChatJan 01 2011018332approx 40 cubic ft per ton give or take ex 4 x 4 x 4 64 Ft3 40 ft3ton 1 6 ton Take your total bin size in Feet L x W X H 40 Top AA130FIREMAN Member Posts 1954 Joined Sat Feb 28 2009 1013 pm It actually will hold 6 tons but that would require some shoveling to fill the corners and under the stationary part of.
Live ChatThis unit is exactly measured as volume of air upon time Eg CFM Cubic Feet per Minute Cubic Feet is a unit of volume and minutes is a unit of time 1 cubic foot is 28 317 Liters Therefore 1 CFM 28 31 LPM Liters Per Minute Similarly Liters per Second Lsec or Cubic.
Live ChatA ton of sand is typically about 0 750 cubic yards 34 cu yd or 20 cubic feet Sand is assumed relatively damp since adding water can increase or decrease the density of the sand considerably e g if it was raining or if you dig up and leave sand under the sun so water evaporates.
Live ChatMore information from the unit converter How many tons in 1 hundred cubic foot of natural gas The answer is 0 025984703632887 We assume you are converting between ton explosive and hundred cubic foot of natural gas You can view more details on each measurement unit.
Live ChatMar 18 2005018332Basically what a 10 Seer 4 ton unit can put out in BTU a smaller 3 ton 14 Seer example can do the same Its BTU input rated but the output is what matters Ask them to do a heat load calc Manual J Sorry just wanted to simplify A 80 efficient 3 ton 36000 BTU unit will have an actual 28800 BTU output.
Live ChatDec 10 2018018332In California natural gas costs 9 20 per thousand cubic feet or 90 cents per therm according to the EIA At this price it would cost 10 98 to generate 1 million Btu of heat using an 82.
Live ChatAbout methane gas 1 cubic centimeter of methane gas weighs 0 00055 gram g 1 cubic inch of methane gas weighs 0 00032 ounce oz Methane gas weighs 0 000554 gram per cubic centimeter or 0 554 kilogram per cubic meter i e density of methane gas is equal to 0 554 kgm179 at 0176C 32176F or 273 15K at standard atmospheric pressure In Imperial or US customary measurement system the.
Live ChatBy way of example if you have a fridge with a top freezer from the 1980s with a capacity of 19 0 21 4 cubic feet its likely to use around 2 000 kWH per year If you pay 10 for electricity per kWh that means the aging refrigerator is costing you about 55 per day 16 67 per month and 200 per year.
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