How big is a 10 000 gallon pool

How big is 1 swimming pool? How many gallons are in 1 Olympic-size swimming pool? This simple calculator will allow you to easily convert 1 pools to gal. ... ≈ 6.6043 x 10 5 gallons. Swimming Pools. An Olympic size swimming pool is 50 meters in length, 25 meters in width, and a minimum of 2 meters in depth. ...

Common Filter Media Rate. High-Rate Sand: 5 - 20 gpm/ft 2. Cartridge: 0.375 gpm/ft 2. Diatomaceous Earth (DE): 2 gpm/ft 2. It is always recommended to oversize the pool filter. Adequate filtration is the primary source of clean clear pool water. An undersized filter can lead to numerous problems, including cloudy pool water, increased chemical ...Pentair QUAD 60 60 sq.ft. up to 32,400 gallon pool. Pentair QUAD 80 with 80 sq.ft. up to 43,200 gallon pool; Pentair QUAD 100 with 100 sq.ft. up to 54,000 gallon pool. Quad D.E. filter provides the finest filtration available. ... How Big Of A Filter Do I Need For An Oval Pool. For oval pools, change the multiplier from 7.5 to 5.9. ...Determine the volume of your pool. Refer to the chlorine manufacturer and find the ratio of water/chlorine you need to use. You can also consider using 52-104 oz …Nov 4, 2019 · If your pool volume is 15,000 gallons, then one turnover would be equal to 15,000 gallons. This turnover is required every 12 hours, or twice a day. Pumps, on the other hand, use a slightly different description of "gallons per minute" or GPM. Think of this a little like the miles per gallon (MPG) quoted as gas mileage on your car. 30 Oct 2020 ... for a 10,000-gallon pool capacity. For instance, a 16” sand filtered system has a 1.55″ sq. ft filtered area, making it ideal for a 15,000 ...

Nov 16, 2020 · The surface area of a swimming pool in feet 2 can be calculated as follows: Circular pools: radius x radius x 3.14. Oval-shaped pools: (0.5 x length) x (0.5 width) x 3.14. Kidney-shaped pools: length x width x 0.75. Rectangular pools: length x width. The required BTU output per hour is calculated as follows: If you were a swimming-pool builder and a customer asked you to build a pool that would hold a million-gallons, then they had better have a big yard! You would need to build a pool about 267 feet long (almost as long as a football field), 50 feet wide, and 10 feet deep. The cube on the right side shows you that 1 million gallons would …Calculating Turnover Rate. To find the right pump size, divide your pool's total volume in gallons by the desired turnover time in hours. For example, if your pool is 15,000 gallons and you want a turnover time of 8 hours: Turnover Rate = Pool Volume / Turnover Time. Turnover Rate = 15,000 gallons / 8 hours.In-Ground Pool Sizes with Varying Average Depths: POOL SIZE GALLONS WITH 4 SHALLOW & 7 to 9 DEEP END AVERAGE. 12 x 24 9,500 TO 11,000 gallons 14 x 28 13,000 TO 15,000 gallons 15 x 30 13,900 TO 15,200 gallons. Why You Need A Variable Speed Pool Pump ... How Big Is A 30 Ft Swimming Pool.How to Use a Pool Vacuum. Visit HowStuffWorks.com to learn more about how to use a pool vacuum. Advertisement Using a pool vacuum makes the task of cleaning the floor of the pool e...Since there are 7.5 gallons in each cubic foot, multiply the cubic feet of the pool by 7.5 to arrive at the volume of the pool (expressed in gallons). Measure the length, width, and average depth of the pool, rounding each measurement off to the nearest foot or percentage of one foot. One inch equals 0.0833 feet.Enter your swimming pools size below to see which Pool Heater is right for you! Please note, after putting in your measurements, our pool heater calculator will ask you to put in the current temperature of your pool and the desired temperature. Based that information, the calculator will recommend an amount of hours it will take to heat the ...

Small: A small pool is typically around 12′ x 24′. It’s perfect for a couple or a small family, and it can hold up to 7,000 gallons of water. Medium: A medium-sized pool is around 16′ x 32′. It’s a good choice for families and can hold up to 15,000 gallons of water. Large: A large pool is around 20′ x 40′. A spool is typically 20ft to 22.5ft long and 10ft wide, but those dimensions are customizable depending on what space restrictions exist in your yard. Spools can provide the benefit of year round usage, serving as a pool during the hot Arizona summers and a large spa in the winter. Design options are endless whether you’re looking for an area ... Jul 31, 2023 · A 20000 gallon pool holds exactly 20,000 gallons of water. This is equivalent to 75,708 liters or 5,283 cubic feet. It is important to note that the water level may vary depending on the depth and shape of the pool, as well as the amount of debris or other materials present in the water. For small pools (under 20,000 gallons), the next size down, a 24″ tank, is great if the budget is tight. But never go smaller than this for an in-ground pool. Cartridge Filters. A good rule of thumb for cartridge pool filters is: 100 sq. ft. of filter surface area per 10,000 gallons of pool water, as a minimum. The 400 sq. ft. cartridge ...For pools that have these dimensions, the number of gallons starts at 10,800 and goes up to 39,600. In the middle of the range, you have 20,400, 21,600 and 24,300, so 22,000 gallons is not a typical size for a pool. Above-ground pools are usually about 4 feet deep and are round or oval. Round sizes are more common and range from …

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Calculate the total capacity of your swimming pool by entering your dimensions in metric units (centimeters or meters) or imperial units (yards, feet or inches). The pool size …Calculate correct size heat pump or pool heater needed to heat your swimming pool. Estimate pool heating costs and calculate heat pump BTU size requirements. Call Us Nationwide: 1-800-741-9956. West: 213-291-9276 Southwest: 214-764-8551 Midwest: 312-229-0026 Northeast: 631-223-7175 Southeast: 239-247-5878 or 954-866-1644. Trustpilot. – Rectangular Pool: A 10,000 gallon rectangular pool might measure around 20 feet in length, 10 feet in width, and have an average depth of 4.5 feet. – Oval Pool: An oval-shaped pool with a capacity of 10,000 gallons could have dimensions of approximately 32 feet in length, 16 feet in width, and an average depth of 4.5 feet. Introducing the 20,000 Gallon Pool: A 20,000 gallon pool is a large-capacity vessel for swimming or other recreational use. It measures 24′ wide by 40′ long and holds up to about 5,500 cubic feet of water. Half that volume is filled by approximately 16,000 gallons of water — enough to fill over 58 standard-sized backyard pools! Buying and installing such a …

Pentair QUAD 60 60 sq.ft. up to 32,400 gallon pool. Pentair QUAD 80 with 80 sq.ft. up to 43,200 gallon pool; Pentair QUAD 100 with 100 sq.ft. up to 54,000 gallon pool. Quad D.E. filter provides the finest filtration available. ... How Big Of A Filter Do I Need For An Oval Pool. For oval pools, change the multiplier from 7.5 to 5.9. ...May 19, 2020 · How big does a cartridge pool filter need to be? Most inground and above ground pools have 4 or 5 sizes, depending on the flow rate or GPH (Gallon Per Hour) level that the pool pump puts out. The rule of thumb for a cartridge pool filter is that you need to acquire 100 square feet of filter per 10,000 gallons of water. Determine how many gallons you need to pump per hour to clean all the water in your pool in eight hours. Divide the gallons of water your pool holds (answer from step 1) by eight. Using the example number of gallons previously given, this equation would look as follows: 24,000 gallons ÷ 8 hours = 3,000. As pumps are labeled with how many ... You need to figure out the right size for your pool. Our guide will help you understand everything about sizing a pool heater calculator. Skip to content. Pool Maintenance; Pool Equipment; Blog; ... Pool Size: Pool Volume (Gallons) Desired Temperature Rise (°F) Heater Size Needed (BTUs) Small (up to 12 ft) 1,000 – 5,000: 1 …Thanks to year-round sunny skies, most Orlando hotels have pools where you can cool off after (or in lieu of) your Florida adventures. Before choosing your hotel, check out these t...5 days ago · 1 UK gallon = 1.201 US gallon, whereas 1 US gallon = 0.8317 UK gallon. 1 gallon is equal to 4 quarts, 8 pints, or 16 cups – so exactly the daily water intake for an average male adult. In the next few paragraphs, you will find values of 1 gallon converted into different volume units. a swimming pool? ... To figure out how many gallons of water it takes to fill your pool, use this equation: Length ... Drinking Water, 5-6, 8, 10-11, 14, 21.30 Oct 2020 ... for a 10,000-gallon pool capacity. For instance, a 16” sand filtered system has a 1.55″ sq. ft filtered area, making it ideal for a 15,000 ...Calculating Turnover Rate. To find the right pump size, divide your pool's total volume in gallons by the desired turnover time in hours. For example, if your pool is 15,000 gallons and you want a turnover time of 8 hours: Turnover Rate = Pool Volume / Turnover Time. Turnover Rate = 15,000 gallons / 8 hours.The recommended horsepower for a 30,000-gallon pool can vary depending on factors such as the desired turnover rate, pool size and volume, and plumbing and equipment setup. However, as a general guideline, a pump with a minimum of 1.5 horsepower (HP) and a maximum of 2.5 HP is typically suitable for most 30,000 …Apr 1, 2023 · Gallons per Hour: You should aim for a sand filter that can handle at least the entire volume of your pool in gallons in eight hours or less. This is often expressed as “gallons per hour” (GPH). To calculate the GPH you need, divide the number of gallons in your pool by eight. Common Filter Media Rate. High-Rate Sand: 5 - 20 gpm/ft 2. Cartridge: 0.375 gpm/ft 2. Diatomaceous Earth (DE): 2 gpm/ft 2. It is always recommended to oversize the pool filter. Adequate filtration is the primary source of clean clear pool water. An undersized filter can lead to numerous problems, including cloudy pool water, increased chemical ...

A: The cost of running a heat pump for a 40000 gallon inground pool depends on several factors, including the size of the heat pump, the local electricity rate, and the desired water temperature. However, on average, you can expect to pay around $5-10 per day to operate a heat pump for a 40000 gallon pool.

How to Use a Pool Vacuum. Visit HowStuffWorks.com to learn more about how to use a pool vacuum. Advertisement Using a pool vacuum makes the task of cleaning the floor of the pool e...CONVAULT INCHES-TO-GALLONS CONVERSION CHART 8000 Gallon ConVault (all dimensions are inches) Length Width Height External Dimensions 277 96 105 Internal Dimensions 263.25 82.25 86 Nominal Capacity 8,000 Gallons 100% Tank Capacity 8,060 Gallons 93.73 Gallons-per-Inch Inches Gallons Inches Gallons Inches Gallons Inches …May 5, 2021 · 2.0. 73. 2.5. 120. But remember, the plumbing system in your swimming pool might be different in size. Some pipes might be smaller or bigger than your samples. So, while estimating its maximum flow rate, take the smallest value you get. It will help you avoid the risk of damaging the system. Use the Clorox® Pool&Spa™ pool gallon calculator to determine the volume or capacity of your swimming pool ... Knowing your pool volume gallonage ... Pool Length ( ...3.14 × Radius 2 × Depth x 7.5 = Pool Volume (Gallons) Oval or Rounded Rectangle Pool. 3.14 x Length x Width x 0.25 x Depth x 7.5 = Pool Volume (Gallons) Kidney-Shaped Pool. With a kidney-shaped pool, measure the widest point at both ends to get your A and B width measurements. Then plug those measurements into the equation below: (Width A ...Record this measurement as well. To calculate the number of gallons, use the following formula: pi x (diameter ÷ 2)² x average depth x 7.5. For example, if your pool has a diameter of 24 feet and an average depth of 4 feet, the calculation would be pi x (24 ÷ 2)² x 4 x 7.5 = approximately 13,323 gallons.Step 4: Panel Size: 4' x 8' 4' x 10' 4' x 12' 4' x 14' 4' x 15' 4' x 16'. Select your preferred panel size. Step 5: Established Desired Swimming Season. See chart below. Florida Residents - Using the chart to the right, find your location, then choose the corresponding factor number.What is the volume of my pool? Using the formula for ovals, let’s break it down: Oval – Longest Diameter x Shortest Diameter x Average Depth x 6.7. 36 Feet x 18 Feet x 5.5 x 6.7 = 23 878.8 gallons. For the sake of having a nice round number moving forward, we will round the sum product up to 24,000 gallons of water.

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Water Constant = 8.3 lbs of water per gallon. 20,000 gallons x 8.3 lbs / gallon = 166,000 lbs of water that needs to be heated. Since it takes one BTU to heat one pound of water by a single degree, we now know that …The recommended horsepower for a 30,000-gallon pool can vary depending on factors such as the desired turnover rate, pool size and volume, and plumbing and equipment setup. However, as a general guideline, a pump with a minimum of 1.5 horsepower (HP) and a maximum of 2.5 HP is typically suitable for most 30,000-gallon pools.Suppose you have a rectangular pool with a length of 20 feet and a width of 10 feet. The average depth of the pool is 5 feet. Using the "Pool Square Footage Calculator," you can determine the pool area, water volume, and chemical amount as follows: ... Pool Area: 200 square feet; Water Volume: 7500 gallons; Chemical Amount: 0.975 gallons ...Determine the volume of your pool. Refer to the chlorine manufacturer and find the ratio of water/chlorine you need to use. You can also consider using 52-104 oz …Best Answer. There approximately 7.48 gallons of water per cubic foot. Therefore, to hold 13000 gallons of water would require approximately 1738 cubic feet of space. For example, a rectangular pool averaging a depth of 6 feet, would require a surface area of approximately 290 square feet, which could be gotten by 29' X 10' or 20' X 14.5', …Secondly, you need to find out the surface area of your pool. We’ll use a 16 x 32-foot pool for an overall square footage of 512. Now, calculate the appropriate values using the following equation: (Surface Area) x (Temperature Increase) x 12 = (Minimum BTU Needed) 512 x 15 x 12 = 92,160 BTUs.The cost to install an inground pool is $35,000 on average and can range from $28,000 to $55,000 and sometimes upwards of $65,000 for special customizations and extra features. An added hot tub ...There are 8.33 pounds of water per gallon. That means that if you have a swimming pool that holds 20,000 gallons, it requires 166,000 BTUs to increase by one degree. What size heat pump do I need for a 20000 gallon pool? We would recommend at least an 85,000 BTU heat pump for a 20,000 gallon pool.For a true Olympic-sized pool, you're looking at a shape that's 164 feet long and about 80 feet wide, accommodating 10 lanes that are each 8 feet wide. Lobe adds these pools are at a minimum of 7 feet deep, ranging up to 10 feet, which allows for competitive swimming, diving, and water polo. If you're really into water sports and competing, a ... See how much you can save with our other pool product calculators. Check out Pentair's easy-to-use pool volume calculator to calculate the volume of your swimming pool water by choosing the shape, dimensions and depth. ….

Jul 31, 2023 · A 20000 gallon pool holds exactly 20,000 gallons of water. This is equivalent to 75,708 liters or 5,283 cubic feet. It is important to note that the water level may vary depending on the depth and shape of the pool, as well as the amount of debris or other materials present in the water. FIDELITY EQUITY-INCOME COMMINGLED POOL- Performance charts including intraday, historical charts and prices and keydata. Indices Commodities Currencies StocksNext, multiply your pool’s length and width and then multiply that number by the average depth. Finally, multiply that figure by 7.5 to calculate the volume of the pool in gallons. For example, if your pool is 32 feet long, 16 feet wide, and has an average depth of 6 feet: 32 × 16 × 6 × 7.5 = 23,040 gallons.Inground pools typically range from 10 by 20 feet to 20 by 40 feet. Above-ground pools are usually between 10 and 24 feet in diameter. Lap pools can be as small …A typical 20,000 gallon pool is rectangular in shape and measures approximately 30 feet long by 15 feet wide. The exact size will vary depending on the design of your particular pool but it typically runs between 25 and 40 feet in length and 10 and 20 feet in width.Water Constant = 8.3 lbs of water per gallon. 20,000 gallons x 8.3 lbs / gallon = 166,000 lbs of water that needs to be heated. Since it takes one BTU to heat one pound of water by a single degree, we now know that …Having a clear understanding of your pool’s volume in gallons is crucial for proper maintenance and chemical dosing. It allows you to determine the right amount of chemicals needed...To keep your 24000-gallon pool clean and safe, you will need a pool pump that can circulate all the water in your pool within 8 hours. Experts recommend a pump with a flow rate of at least 50 gallons per minute (GPM) and a horsepower of 1.5 or 2. How big is a 10 000 gallon pool, What size pool holds 10 000 gallons? The size of a pool that can hold 10,000 gallons of water can vary depending on the shape, depth and type of pool. For an inground pool, if the pool is 8’x20’ and 4’ deep, it can hold approximately 10,296 gallons of water. If the inground pool is 15’x30’ and 4’ deep, it can hold 19,595 gallons of ..., Mar 16, 2024 · Deciphering the right heater size depends on pool dimensions and the desired temperature rise. A pool heater calculator helps streamline this process. To heat the pool effectively, the heater’s output must be powerful enough to raise the water temperature by at least 1 degree, factoring in the pool’s surface area and the ambient temperature. , Apr 5, 2024 · 18,000-gallon in-ground pools, lap pools, and above-ground pools are the most popular. Plunge pools are slightly smaller and work well for more compact backyards. Olympic-size pools are the largest and not as common. Pool Sizes Chart By Type. Above Ground Pool Dimensions. , Jun 5, 2023 · A 20000-gallon pool measures approximately 40ft x 20ft x 5ft (LxWxD). Dimensions determine swimming space and maintenance costs. Consider the surrounding area and pool material’s durability before installation. Install safety measures such as fences, gates, and alarms for peace of mind. , A typical 20,000 gallon pool is rectangular in shape and measures approximately 30 feet long by 15 feet wide. The exact size will vary depending on the design of your particular pool but it typically runs between 25 and 40 feet in length and 10 and 20 feet in width., The ideal level for stabilizer is 30-50 ppm for chlorine pools and 60-80 ppm for saltwater pools. Hot tub CYA levels should be pretty low, around 30 ppm. If your cyanuric acid level is too low, your chlorine will burn up quickly in the sun. If it’s too high, though, your chlorine won’t be very effective (and too much stabilizer can damage a ..., 80,000 Gallon Pool vs. 100,000 Gallon Pool An 80,000-gallon pool is slightly smaller than a 100,000-gallon pool, which is typically around 20 x 40 feet in size. However, the difference in size may not be noticeable to the average person, and an 80,000-gallon pool can still provide plenty of space for swimming, lounging, and …, 3.14 × Radius 2 × Depth x 7.5 = Pool Volume (Gallons) Oval or rounded rectangle pool. 3.14 x Length x Width x 0.25 x Depth x 7.5 = Pool Volume (Gallons) Kidney-shaped pool. Measure the widest points of your kidney-shaped pool to determine the A and B width lengths, then plug them into the equation below: (Width A + Width B) x Length x 0.45 x ... , 3.14 × Radius 2 × Depth x 7.5 = Pool Volume (Gallons) Oval or rounded rectangle pool. 3.14 x Length x Width x 0.25 x Depth x 7.5 = Pool Volume (Gallons) Kidney-shaped …, Discover the Magnitude of a 5000 Gallon Pool! Dive into the ultimate guide to this impressive residential oasis. Uncover the ideal dimensions, ranging from a..., Our pool size calculator takes the guesswork out of the picture when calculating what amount of pool chemicals you really need. It can caluclate the volume of ..., Lap pools – An inground lap pool costs $40,000 to $70,000 on average, depending on the size and material. Traditional lap pools are rectangular, 6 to 9 feet deep, and are used to exercise and improve swimming skills. Small / mini pools – Small inground pools cost $7,000 to $25,000, depending on the size, and are also called plunge pools or ..., Deep End Depth = 12 feet. 4 + 12 = 16 feet. 16 feet ÷ 2 = 8. The average depth of the pool in this example is 8 feet. To determine the volume of water, use the formula for the shape of the pool you have: Circular Pools: Diameter (ft.) x Diameter (ft.) x Average Depth (ft.) x 5.9 = Total pool capacity in gallons., 3.14 × Radius 2 × Depth x 7.5 = Pool Volume (Gallons) Oval or Rounded Rectangle Pool. 3.14 x Length x Width x 0.25 x Depth x 7.5 = Pool Volume (Gallons) Kidney-Shaped Pool. With a kidney-shaped pool, measure the widest point at both ends to get your A and B width measurements. Then plug those measurements into the equation below: (Width A ..., You use the following formula. Pool gallonage x 2 (the recommended number of cycles in a day) ÷ daily hourly run time ÷ 60 (minutes in an hour). So, for a 30,000-gallon pool that runs continuously (24-hours), the formula is: 30,000 x 2 ÷ 24 ÷ 60 = 41.6 or rounded up it’s a 42 GPM minimum flow rate. , Surface Area of an Odd-Shaped Pool. Calculate a pool's surface area from the volume and the depth of the pool. Some pool owners don't know what the surface area of their pool …, This term indicates the amount of water a pool can hold, measured in gallons. This capacity is calculated based on the shape, depth, and overall dimensions of the pool. Let's explore the crucial components that determine the size of a pool. A 20000-gallon pool isn't a standard size., Assuming your swimming pool is 24ft long and 15ft wide and a depth of 10.5ft, its volume would be: 24ft x 15ft x 10.5ft x 7.5 = 28,350 Gallons. The required minimum flow rate for 2 (6-hour) cycles is: 28,350 Gallons / (6 hours x 60) minutes = 78.75 GPM. Your swimming pool filter must supply 78.75 gallons per minute to meet the two …, A 15 x 30-foot oval pool with an average depth of 48 inches holds 12,000 gallons of water. A pool with the same exterior dimensions and an average depth of 52 inches holds 14,800 g..., 2.0. 73. 2.5. 120. But remember, the plumbing system in your swimming pool might be different in size. Some pipes might be smaller or bigger than your samples. So, while estimating its maximum flow rate, take the smallest value you get. It will help you avoid the risk of damaging the system., Pool Size. 12’ 15’ 18’ 20’ 21’ 24’ 28’ 30’. 11’ x 18’ 12’ x 24’ 15’ x 25’ 15’ x 27’ 15’ x 30’ 16’ x 32’ 18’ x 33’ 21’ x 38’ 21’ x 41’. 36” 42”. 2,500 4,000 4,600. in-Ground PoolS. 48”. 3,400 …, Installing an inground pool typically costs between $39,000 and $70,000, while the cost to install an above-ground pool ranges from $1,000 to $6,000. In both cases, opting for a large pool will usually drive …, It’s awards season, and there’s no better award than beating all of your friends at predicting the Oscar winners. So here’s how to win your Oscars pool every year, and get you feel..., Try a dip in a private, 300,000-gallon pool with solar lighting, a dance floor and rustic landscaping. Jerry Leussink of Sundre in Alberta, Canada, built such a pool, inspired by a pond on the ..., – Rectangular Pool: A 10,000 gallon rectangular pool might measure around 20 feet in length, 10 feet in width, and have an average depth of 4.5 feet. – Oval Pool: An oval …, Here is a resource to help you and to convert units into those most useful to you. As mains water is supplied in Britain in cubic metres, start by measuring in metres to obtain an answer in cubic metres. Then use the calculator to convert this figure into litres, imperial gallons or US gallons. 1. Choose Your Pool Shape., Introducing the 20,000 Gallon Pool: A 20,000 gallon pool is a large-capacity vessel for swimming or other recreational use. It measures 24′ wide by 40′ long and holds up to about 5,500 cubic feet of water. Half that volume is filled by approximately 16,000 gallons of water — enough to fill over 58 standard-sized backyard pools! Buying and installing such a …, , Deep End Depth = 12 feet. 4 + 12 = 16 feet. 16 feet ÷ 2 = 8. The average depth of the pool in this example is 8 feet. To determine the volume of water, use the formula for the shape of the pool you have: Circular Pools: Diameter (ft.) x Diameter (ft.) x Average Depth (ft.) x 5.9 = Total pool capacity in gallons. , For a 20000 gallon pool, the recommended amount of chlorine is 48 ounces per week. To maintain optimal chemical levels for swimming, 8 ounces should be added per 10,000 gallons every other day or 8-12 ppm free chlorine depending on your preference. ... How Big Is A 30 000 Gallon Pool. Enhance your pool experience with high-quality and ..., Deep End Depth = 12 feet. 4 + 12 = 16 feet. 16 feet ÷ 2 = 8. The average depth of the pool in this example is 8 feet. To determine the volume of water, use the formula for the shape of the pool you have: Circular Pools: Diameter (ft.) x Diameter (ft.) x Average Depth (ft.) x 5.9 = Total pool capacity in gallons., The cost to install an inground pool is $35,000 on average and can range from $28,000 to $55,000 and sometimes upwards of $65,000 for special customizations and extra features. An added hot tub ..., Size at 4 BTU's per gallon of water - To heat a pool in normal summer conditions when the ambient air temperature average is 70°F in a 24 hour period. For example, if your swimming pool is 10,000 gallons then you should purchase a heat pump with a minimum of 40,000 BTU's. Size at 5 BTU's per gallon of water - To heat a pool in spring and fall ...