i have a 5ft pool and have a intex 3kw heater how long will it take to heat pool to a good swimm tempature
It takes 8.34 BTU to heat 1 gallon of water 1 degree F. Take 8.34 BTU times number of gallons to determine energy needed to raise pool 1 degree F. Then multiply by how many degrees you need to raise the temperate of the current pool temperature to the desired temperature. Example: 8.34 * 30,000 gal = 250,200 BTU need to raise temperature 1 degree F Next multiple by the number of degrees to warm, say the pool is 55 F. 80F - 55F = 25F. 250,200 BTU * 25 F = 6.255 million BTUs to heat the pool to 80 F. This does not take into account the loss of energy to the surroundings but gives you a starting point to determine the energy needed to heat a mass of water.
wheather , pool heat and body heat
Yes: assuming you want your pool to be higher than 70 degrees. Trust me you do, the common temp for a pool is 82-84 degrees F.
A US gallon of water is about 8.4 lb, so 30,000 galls is 252,000 lb. One BTU is the heat to raise one pound of water by one degF, so BTU's in your example are 252,000 x 15 = 3,780,000 BTU.
Calculating Necessary Pool Heater Output Formula... Pool Gallons X 8.33 X Desired Temp. Increase / 24 Hrs. =Heater BTU'S Per Hour Required To Heat Up The Pool Example: 30,000 gallon pool @ 55 degrees, heated to 75 degrees 30,000 x 8.33 x 20 = 4,998,000 BTU'S / 24 hours = 208,250 Output BTU'S per hour The example above shows that 20' x 40' pool with an average depth of 5 feet with a heater producing an output of approx. 210,000 BTU's would require 24 hours to raise the temperature of the pool 20 degrees.
It depends on when you want to swim. If you are looking to extend your swimming season a few months, like from May to September and/or you would like to raise your water temp 10-15 degrees than a 130K heat pump will do the job. The most important thing you can do it to use a solar cover. The heat pump will only raise the temp of the pool approximately .5 to 1 deg an hour and only if the temperature is above 50 degrees or so. So it will take 24 hours to get the pool comfortable and than with a 6-8 hour pool pump run time you should be able to have the water a comfortable 85 degrees or so. Without a solar cover the evaporation will be much higher and you will need to run the heat pump for 10+ hours a day to maintain the desired temperature. If you want to have your pool 90+ degrees regardless of the outside temp and you want it to heat up very quickly, than you definetly want a propane or gas heater. The answer is no. A heat pump requires heat to pump. NJ probably gets a little cold doesn't it? Therefore, no heat to pump. Depending on wind conditions, I would go with a Laars 400LX/LT. HM Louisiana ANSWER: Stay with the Raypak.
28 degrees, that's the standart
We've had many people buy a Hayward Heat Pro heat pump for their pool. Whether or not it is the best for your pool depends on your pool and where you live. Here's a link to the Hayward Heat Pro: http://shop.bluehaven.com/product/hayward-heat-pro/hayward-pool-heaters
Yes, they draw their heat from the sun while floating at the top of your pool. They can effectively warm your pool by about 10-15 degrees. http://shop.bluehaven.com
I am no heat pump expert, but whatever you do, DO NOT buy a suretemp pool heating pump, as they stop working under 65 degrees. Their web site and literature state 45 degrees, but that is not the truth. I have called them about my new pool heater and they say there is nothing they can do.
No, 40 = 40... The fully filled up swimming pool though will contain more heat (unit: Joule) than a cup of tea of the same temperature.
This is a question that can only be answered by many questions. How many gallons is your pool?,by off season do you mean say Alaska at 30 degree air temp and 35 degree water initial temp,or Arizona air temp 70 degrees water 60 degrees?. Is your pool covered or uncovered?,What is the btu of your heater?, What is your turnover rate?.and do you want to heat it to 75 degrees or 80 degrees or even 100 degrees? There are even more factors than this involved So here is a link to a heater site that will tell you the rise in water temperature for this paticular heater. Hope this helps. http://www.pentairpool.com/misc/pdfs/heaters/MiniMax100_ag.pdf Kenny Kummer brody chemical