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How long does it take to heat a pool with a pool heater?


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2010-12-21 13:37:19
2010-12-21 13:37:19

This would depend to a great degree (pardon the pun) on the size of the pool and the BTU rating of the heater. However, I have an 18' X 36' pool (about 25,000 Imperial gallons) and my gas heater raises the temperature at a rate of about 1/2 degree per hour.


This is not really an answer but will maybe give you some more info. Say current pool temp = 60 degrees - it takes my 10k gallon pool about 12 hours to come from completely too cold to swim to a nice baby's bath. Gas heater.

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i have a 5ft pool and have a intex 3kw heater how long will it take to heat pool to a good swimm tempature

To have a chance of answering that one would have to know the amount of water in the pool, the current temperature of the pool and how much you want to heat it to.

That depends upon the size of the pool heater that you have and/or if you have a bubble cover to assist.

My heater to heat my 18 X 40 pool (30,000) gallons takes one hour per degree. I have a 250,000 btu heater.

Well, it depends on the size of heat pump and the size of pool! However, a 30x12 ft, 2-3.5ft deep pool with an 18kw heater will take 4 to 5 days.

Less than 3 minutes! It shouldn't take that long

I don't know because I have never let my pool be open in the winter. I think you should close your pool in Se temper.

your heater will be cold, or your engine can over heat. your car can take a long time to heat up. Your inside heater will be cool, or your engine temp. will over heat.

3kw heater heating a 10 foot pool may take 4 to 8 hours for heating it up to 20 to 25 Degrees Celsius. This also depends on the outside temperature.

It depends on the size of your pool, the number of panels, your location and the desired temperature gain. Assuming my panels are equal to the sf of the surface area of my pool in (for example) North Carolina I can expect to see about a 1 degree rise per hour using a blanket during the sun, so when you first turn on a solar system it can take 3-5 days to fully heat your system but once it reaches that point it keeps it warm from then on.

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Your gas pool heater should have a BTU/hr rating for input and output printed on a placard somewhere on the heater. Look for the input rating and divide by 100,000 to get Therms/hr. Assuming your gas is being billed in dollars per Therm, just multiply that rate by your Therms/hr. to get dollars/hour. Multiply this by how many hours you run your gas heater and that's your total pool heater operating cost. Also take in account the time of year temp and wind. If your heating your pool to 78-85 degrees and your pool water is 60 degrees that would be an 18-25 degree temp rise. Your pool is exposed on all sides and this will bleed heat off quickly. It may never achieve the temp desired or not shut down and always call for heat.

either the thermostat is not working properly or you have air in the system

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it depends on how big the pool is

It depends on the how many degrees you wish to change the water and the wattage of the heater. Obviously a 1500 watt heater will do it faster than a 1000 watt heater. You might want to begin by looking at the heat transfer formula: heat in joules equals mass times change in temperature times specific heat of the material (water in this case).

Anywhere from 6- 35 hours. Lol. No it should take around 2 hours

The time it takes for a solar heater to heat a pool depends on the volume of the pool, the size of the solar heater, and the delivery rate of heat by the sun to the solar panel. Also important are the starting temperature of the water in the pool and the desired temperature to which the water should be heated. Those are the variables. Some "rough" calculations can be made by looking at the inflow and outflow temperatures of the water through the solar panel, and the rate at which the water in pumped through it. First, begin with an "average" amount of water flow calculated in gallons per hour, and the differential temperatures measured. Find the number of gallons of water going through the heater per day, that is, the "lighted" hours when heat is being produced. There will be more heat delivered in the middle of the day than earlier or later, probably. And cloud cover will have an impact on the effectiveness of the heater. You need "x" number of gallons per day, and you'll need the "average" temperature rise of the water through the heater. You'll check differential temperatures in the morning, at "noon" and in the afternoon to figure this out. When you're done, you'll have "x" number of gallons of water in a day being heated up by "t" degrees. Divide the volume of your pool by the flow rate per day through your heater. That's how many days it will take to raise the temperature by "t" degrees. To raise the temperature by half of "t" degrees, it will take half as long. To raise the temperature of your pool by a quarter of "t" degrees, it will take a quarter as long. The numbers will not lie if you have done your measurements accurately, arrived at your estimates correctly, and calculated fastidiously. Certainly you can easily get into the ball park by thinking this through and punching up some numbers.

Is your coolant level low, or maybe the thermostat is stuck open?

Tank water will slowly warm to ambient temperature. It will not get any hotter.

To infinity and beyond. Without pilot light, burner will never turn on to heat water.

An electric heat pump needs heat available to pump. If it is 30 degrees outside, heating a spa to 102 or so, may be impossible unless the heater has some type of alternative heat source. A properly sized, gas fired heater can take care of a larger range of heating needs. A combination heat pump and natural gas heater, probably with a controller, really makes the issue more difficult, expensive, and would require a lot of study for efficient, cost effective operation. Bottom line: In really mild climates a heat pump might do the job. In cooler climates the gas heater rules. And where a wide range of temperatures and high heat demand is wanted by the customer, a gas heater is the only way to go. A backup heat pump may take years to payout. HM Louisiana

To heat up a tankful of cold water will take about an hour initially. Once it's hot, the heaters will automatically come on when temperature drops a bit .

A solar pool cover will retain about 90% of the heat. This percentage can and will change depending on what region you live in. If you live in the hot south you will find that your pool will retain most of the heat whereas if you live in Minnesota where it is cooler it might retain 5% to 10% less. As far as generating heat...well, keep your heater. A solar pool cover will generate a very small amount of heat but not enough to where you can give up that heater. The solar cover will, however, probably save you at least 50% in your electricity costs of using the heater. Now I have to go back to the region aspect of these covers again. If you live in an area where it is hot at night (80 degrees or more) you can certainly go without the heater but be aware if the evening temperature drops so will the water temperate and it could take 1 to 2 days for the heat to go back up to where you want it. I hope this information helps but if not and you would like to find out more you can go to PoolCenter.com where yo

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