0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
How do air conditioning calculate?
If you are looking for an easy method that is not based in scientific data try this: Heating requirement is the same as cooling. To calculate Btu needed to cool look at the furnace for input Btu then multipy that by effeciency of unit. Now think about the coldest day the furnace will provide okay heating such as 5 degrees outside and 68 degrees inside. Subtract those and you have 63 degrees. If you heating Btu was 80000 input and 80% efficient, you need 64000 btu to heat 63 degrees. Do similar math to hottest day and desired inside cool temperature. Maybe 103 degrees outside and 72 degrees inside. That is 31 degrees difference. Use heat math of 64000 Btu for 63 degree which is very roughly 1000 Btu per degree. Apply that to cooling and it's roughly 31000 Btu, or around 2-1/2 ton cooling. Please don't bark at me about the basic nature of my math-I thought I would explain this as a method to start or get an idea. There is a method that accounts for all factors but no way could I explain it. Also, if using electric heat your btu will be about 4.5 per watt and no efficiency applies. The watts can be found on the inside of the furnace above the blower.
How many btu's does wood put off when burned?
There are many btu's but the most common ones are:oxygencarbon deoxide (co2)carbon moxide(co3)water vapor (h2o)
What is an HVAC Load Calulation?
HVAC Load Calculation is a formula used by a contractor salesmen that determines the proper tonnage size of heating and cooling systems to be installed in Residential or Commercial applications. The formula is used to calculate the total cooling and heating BTU'S (British Thermal Units) for the proper values of determining the correct tonnage to be installed in HVAC applications. Tonnage is the size of the HVAC system. Without this Load calculation the wrong tonnage could be installed and it causing to much humidity in the summer in cooling season and not enough heating in the winter season. Also the HVAC system may never stop running to reach the proper temperature that the thermostat is set for. Thus causing high electricity out of pocket cost.
How do i calculate the size radiator i need for my house?
Step 1 - Find the volume of the room in cubic metres: * Calculate length x width x height Step 2 - Adjust according to room type: * Lounges and dining rooms multiply by 50* Bedrooms multiply by 40* Common areas and kitchens multiply by 30* Bathrooms multiply by 90Step 3 - Allow for important variables: * For rooms facing north add 15%* For French windows add 20%* For double glazing deduct 10%* For very exposed sites, or very cold weather add 10%* For new builds (that are much better insulated) deduct 20% This will give you the output of any radiator in watts.Multiply this by 3.412 to give the BTU requirement for the room.
How do you compute natural gas consumption related to BTU?
There are about 1030 BTUs in a cubic foot of natural gas. If one wishes to know the gas consumption (in feet3 per hour) for a given BTU per hour usage rate, one would divide the amount of BTUs by 1030. That would yield the number of cubic feet of gas that is used per hour. Q: I'm heating a space using 10,300 BTUs per hour and I'm using my natural gas heater to do it. How many cubic feet of gas am I using per hour? A: 10,300 BTUs (the heat generated per hour) divided by 1030 (the number of BTUs per cubic foot of gas) equals 10 cubic feet. You're using 10 cubic feet per hour. You apply 10,300 BTUs to heat the space per hour, and you use 10 cubic feet of gas per hour to do that. (And yes, I picked easy numbers.)
What size circuit breaker for electric furnace?
67,500 BTU electric furnace
A 3ton air conditioner has what size gas heater?
It could have any size heating furnace, the two are unrelated except for the size blower used in the furnace to support the 3 ton cooling system. But the fact remains you can get a 3 ton blower in 50,000 btu furnace, a 100,00 btu furnace and anything in between.
What size BTU furnace to heat a 3000 square foot 2 story home in northern Ohio?
230,000 btu
What size furnace for 2000 square foot house?
2000 sq. ft. x 5o (based on climate zone)=100,000 btus so; between 80k-100k(100,000 Btu's needed) 80% Efficient furnace: 125,000 Btu capacity; 90% Efficient:110,000 Btu capacity; 95% Efficient: 105,000 Btu capacity.go here.http://www.gasfurnacepricesonline.net/22/what-size-furnace-do-i-need-for-a-2000-square-foot-house/
What size furnace should you put in a 2200 square foot house?
1'ooo,ooo btu effin furnace outta do the job..your welcome
What size of unit is a rheem model no rrgg10e36jkr?
100,000 btu input. The output depends on the efficienct rating of the furnace, ie 95%efficient = 95,000 btu output, 80% = 80,000 btu output.
What size gas furnace for 1450 SF home?
Many variables but for normal conditions 100 btu will be plenty
How do you size a house for heating?
measure the square footage of your house when you go to purchase your furnace. Then they can change that figure to BTU's.
What is the BTU rating for an American Standard gas furnace?
Read the tag on your furnace for the input/output rating. American Standard and all other manufacturers make more than one size furnace.
How many btu furnace to heat a 3200 sq ft home in upstate NY?
A general rule of thumb in estimating the size of furnace needed to heat a home is to find the square footage of the home, and multiply that by 45 BTU (British Thermal Unit). For a 3200 square foot home a furnace somewhere in the range of 144,000 BTU would be a reasonable estimation of the furnace size needed to heat the home. To find the most efficient furnace for any given home, however, it would be best to contact an HVAC professional who can perform a load-calculation.
What is the btu per hour of a heil nugk075dg01?
you are referencing a 75,000 BTU furnace.
How do you find the efficiency of your furnace?
Divide the btu output rating by the btu input rating. Both of these values can be found on the furnace`s nametag.
