What size heated do you need for a 10000 gallon swimming pool?

Answer 1

To answer to your question one would require a lot more information from you. A 10,000 gallon pool is fairly small so I would guess that it is an above ground pool.

From not having all the information needed I would say a 400,000 BTU gas heater would probably suit your needs. Plan on having a large gas bill if you want to heat the pool in the winter time. That is provided you have low temperature winters in your area.

If you would like a more informative answer, ask your question again and supply the following information.

1. above ground or in ground pool
2. average daily water temperature of your pool during the time frame you want to heat the pool.
3. temperature you would like the water to be
4. which type of pool heater you are considering using gas,solar or heat pump.
5. surface area of pool
6. Whether or not you want to occasionally heat the pool or maintain water temperature constantly during this time.

Or you can use this to come close to figuring it out on your own. 1 BTU is a unit of heat equal to the amount of heat required to raise one pound of water one degree Fahrenheit at one atmosphere pressure. Then figure that at about %70 efficiency due to heat loss and you'll get close. Since most heaters are rated in BTU's per hour this will be the time frame used to determine the heater size.

7.48 gallons per cubic ft

8.3 lbs per gallon

1 lb x 1 degree divided by hours to achieve desired temp divided by %70 efficiency = BTU.

This is only approximate as ambient temperature, pool surface area, and heat loss all play a part in the total equation.

Obviously from this you can derive that it is much more practical to maintain a temperature than to try and raise it quickly.

A pool cover can play a big part in heat loss and should be used if your are trying to maintain water temperature in your pool. Remove the cove only during swimming times.

Answer 2

You can put a 175,000 to 400,000 BTU heater in depending if you are wanting to heat quickly or to sustain the temperature. Any size will maintain a temperature. Or you can go with a heat pump if you are planning to operate all the time.