what size pool heater do i need for a 24 foot round pool

Full Answer

What size should a heat pump pool heater be?

Rules For Sizing Your Heat Pump Pool Heater. Size at 4 BTU’s per gallon or 1 BTU per litre of water. To heat in normal summer conditions when ambient air temperature average 70°F in a 24 hour period. Size at 5 BTU’s per gallon or 1.3 to 1.5 BTU’s per litre of water.

How many BTUs does a pool heater use?

While gas heaters go up to 400,000 BTUs in size, the most powerful electric heat pumps top out at around 140,000 BTUs. Solar pool heaters: Solar energy has been around for quite a while, but it never got the mainstream popularity that we thought it would.

Is bigger better when it comes to gas pool heaters?

We’ve all heard the saying “bigger is better”. When it comes to gas pool heaters, this is mostly true. However, it really depends on your pool size, and budget. Generally speaking, the amount of BTUs required to heat pool water will be the same, no matter the size of the heater.

What size patio heater do I need for my home?

Patio heaters that are freestanding have an output of 40,000 BTUs per hour on average. This can heat a room with a circumference of 20 feet, which can accommodate a medium-sized gathering. If you want to heat a room with a circumference of 10 feet or less, get a unit with an output of 20,000 BTUs per hour. This can be used for small gatherings.

How long does it take to heat a 24 foot pool?

24 to 72 hoursIt depends on a few things to determine how long it takes a heat pump to heat a pool. However, overall a heat pump generally heats a pool after 24 to 72 hours by 20-degrees Fahrenheit.

How do I calculate my pool heater?

In order to make an informed decision about what size of pool heater you need for a given application, you need to know the following:1) The volume of the pool. ... average length x average width x average depth x 7.5 = volume in gallons. ... average length x average width x average depth x 7 = volume in gallons.More items...•

How big does my pool heater need to be?

The pool's surface area divided by three gives you the minimal BTU size recommended for that particular surface area. Continuing the example above with the 15 x 30 pool, after dividing by 3, you get 150. Therefore, the minimum size heater that is recommended for a 15 x 30 pool is 150,000 BTUs.

What size heater do I need for a 10000 gallon above ground pool?

Sizing a gas heater for inground pools is done by first matching pool heater BTU output to pool size in gallons. Or approximately 100K BTU's for every 10,000 gallons of pool water.

Can a pool heater be too big?

A pool heater can be undersized: if it cannot replace the heat lost through evaporative cooling, the pool's temperature will fall below the ideal. However, there is no such thing as oversizing a pool heater. The larger the heater's output, the faster it heats the water in the pool, and it will not begin short-cycling.

What size pool heater do I need for a 27 foot round pool?

Heat Pump Sizing Chart - Above Ground PoolsPool Size (Feet)Summer 4 BTU'sExtended 6 BTU'sUp To 13,000 Gallons Up To 24' Round or 15' x 30' Oval50,000 BTU85,000 BTUUp To 17,000 Gallons Up To 27' Round or 18' x 33' Oval65,000 BTU110,000 BTUUp To 21,000 Gallons Up To 30' Round or 18' x 40' Oval85,000 BTU125,000 BTU1 more row

Should you oversize a pool heat pump?

Generally speaking, you should oversize the heat pump as much as possible. You'll never regret going too big, as doing so means warming the pool at a faster rate without running the heater as much.

Which is better a heat pump or gas heater for pool?

Heat pump pool heaters cost more than gas pool heaters, but they typically have much lower annual operating costs because of their higher efficiencies. With proper maintenance, heat pump pool heaters typically last longer than gas pool heaters. Therefore, you'll save more money in the long run.

Is solar pool heating worth it?

You can significantly reduce swimming pool heating costs by installing a solar pool heater. They're cost competitive with both gas and heat pump pool heaters, and they have very low annual operating costs. Actually, solar pool heating is one of the most cost-effective use of solar energy in some climates.

What's the best way to heat an above ground pool?

Using a heat pump to heat your above ground pool is our recommended method. Using a heat pump to heat your pool will give you the lowest running cost.

How do I choose an above ground pool heater?

Step 1. Above ground pool heaters are rated by BTU's and a BTU is a basic measure of heat energy. One BTU is the amount of energy required to heat one pound of water one degree Fahrenheit. Heaters specifically marketed for above ground pools have a lower BTU rating than those for in-ground pools.

How much does it cost to add a heater to a pool?

Between setup and operating costs, a pool heater costs between $300 and $5,000, with the average cost around $2,000.

How many BTU's do I need for a 15000 gallon pool?

90,000 BTUBased on this information, if your pool has 15,000 gallons of water, and you wanted to go with a 120,000 BTU heat pump, you absolutely could....Pool Volume(Gallons)Heat Output(BTU)10,00050,000 BTU15,00090,000 BTU20,000120,000 BTU25,000140,000 BTUFeb 24, 2021

How do I calculate BTU for pool heater?

Multiply the surface area of the pool by the temperature rise. Multiply that result by 12 to arrive at the required Btu-per-hour output of the heater. This figure represents the heater output necessary to heat the pool to the desired temperature in 24 hours, based on an average wind velocity of 3.5 mph.

What size pool heater do I need for 20000 gallons?

Pool heaters measure their power in BTU (British thermal units). One BTU raises the temperature of one pound of water by one degree Fahrenheit. 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.

How long does it take to heat a 20000 gallon pool?

You have a 20,000-gallon pool and use a 125,000 BTU heater. Your water is currently 70 degrees F but you would like it to be a minimum of 80 degrees F. How long will it take before the pool water reaches 80 degrees F? 10 x 1.33= 13.34 hours of heating before the pool reaches 80 degrees F.

What size heater should I use for a 15x30 pool?

Therefore, the minimum size heater that is recommended for a 15 x 30 pool is 150,000 BTUs. This is simply the recommended minimum size. I always go higher. Especially when it comes to gas heaters, you always want to oversize the unit. The job of a pool heater is to replenish the heat loss at the surface of your pool.

How to determine pool heater size?

When you are determining which size pool heater to buy, the first step is calculating your pool’s surface area. A lot of pool owners assume that you use your pool’s gallon size to determine your heater size. In fact, there are some websites that DO use the number of gallons. If you have a pool with a large surface area, the heat has more space to escape and subsequently, more water to heat. As a result, the heater needs to be large enough to compensate for surface area and the pool size.

What is a Raypak gas heater?

Raypak has a gas heater calculator that configures your city and state with your desired water temperature, average air temperature, and desired temperature rise. Raypak’s online calculator allows pool owners to input specific information about their pool and location and configure what size heater is best, not only for their pool but taking your physical location into consideration as well.

How fast does a 400k heater heat a pool?

A 400k BTU heater will heat a pool twice as fast as a 200k BTU heater and burn gas twice as fast. Heating up a pool versus a pool/spa combination requires less BTU power. Usually, if you have a pool and spa combination, I recommend purchasing 30% higher BTU, for example going from a 300k to a 400k. If you want to perform ...

What is the minimum BTU for a 15 x 30 pool?

Therefore, the minimum size heater that is recommended for a 15 x 30 pool is 150,000 BTUs. This is simply the recommended minimum size.

What is the job of a pool heater?

The job of a pool heater is to replenish the heat loss at the surface of your pool. Most heat loss happens overnight. Without a solar cover, there is no way to make up for the loss. That’s when having a higher BTU size comes in handy.

What BTU should I use for a 15x30 pool?

For a 15 x 30 pool without a solar cover, I might recommend the 250 k or 300 k BTU model, depending on the customer’s preferences. That way it accounts for heat loss, evaporation, and unexpected windy conditions. It also accounts for pool owners who prefer to swim at night.

How should a pool heater size be?

The heater size should be based on how warm you want the pool or spa water and how fast you want the pool to warm up. If you plan to keep the pool warm all the time a smaller heater will work. The most economical use is to oversize the heater and quickly warm up the pool water before you are ready to use it.

How to determine the size of pool heater?

Use the following formula to get started: Determine what temperature you'd like the pool water to be. Subtract the average spring and fall air temperature for the period you will use the heater.

What happens if you put a heater in your pool?

An overpowered heater may raise the temperature too high , risking injury to you as well as damaging your pool.

Do you need a heater for a pool?

For many, a natural gas or propane-fueled pool heater is an absolute necessity. Not only does adding a heater to your pool ensure you'll have a warm, comfortable pool to hop in every time you're ready to take a swim, but a heater can also drastically extend your swimming season.

Can you use a pool heater in advance?

Of course, there are two main ways you as as pool owner may choose to use a pool heater. One of these is to let the pool cool down when not in use, then turn on the heater in advance of any swim to bring the temperature back up to where you'd like it.

Why Is Pool Heater Sizing Important?

We’ve all heard the saying “bigger is better”. When it comes to gas pool heaters, this is mostly true. However, it really depends on your pool size, and budget.

What is a BTU pool heater?

Note: BTU (British Thermal Unit) is a unit of measurement that measures thermal (heat) energy. Gas pool heaters are rated for BTU input/output and range from 100,000 – 400,000 BTUs.

Why use a solar cover for pool heater?

With a cover, you can use a heater that outputs less BTUs because the heat stays trapped in the water. Solar covers are also available as rings, or as pourable liquid covers, helping reduce evaporation of the pool water so you won’t have to constantly refill the pool.

How much water does a BTU heater raise?

But once it reaches the desired temperature, it can easily maintain it. When it comes to minimum size, the general rule is 1 BTU will raise 1lb. of water by 1 degree Fahrenheit.

What temperature should a heater be?

A sweet spot for most heaters is between 82°F and 86°F, so for simplicity’s sake we’ll use 85°F.

Does a propane heater heat faster?

Do you want to be able to warm the pool in only a few hours? Are you someone who wants to swim regularly in the cooler months? If this is you, a large BTU gas heater will heat fast, and you won’t need to run it for long stretches of time. Propane has an advantage over natural gas here as it burns hotter and heats faster.

Does size matter for pool heater?

Contrary to what women say, size really does matter – at least, as far as swimming pool heaters go. Correct pool heater sizing can be slightly tricky, but it mainly comes down to this: large heaters will heat quickly, whereas smaller heaters take more time to distribute heat throughout the pool. The choice is yours.

What size heater should I use for a 15x30 pool?

Therefore, the minimum size heater that is recommended for a 15 x 30 pool is 150,000 BTUs. Keep in mind, this is simply the recommended minimum size. Meaning, I wouldn’t go lower but I might need to go a little higher. When it comes to gas heaters, you always want to oversize the unit.

What is a BTU pool heater?

Note: BTU is a unit of measurement that measures thermal energy. Gas pool heaters are rated for BTU input/output and range from 100,000 400,000 BTUs.;

How many BTUs per hour for a patio heater?

Heaters with a heating capacity of 48,000 BTU can heat patio spaces up to 200 sq ft. The best patio heaters have an output of 50,000 BTUs per hour. These are great for small gatherings. If you want to heat a bigger patio space, you should get a patio heater with an output of 60,000 BTUs per hour. These can be used on medium-sized patios and can accommodate medium-sized gatherings.

What is a Raypak gas heater?

Raypak has a gas heater calculator that configures your city and state with your desired water temperature, average air temperature, and desired temperature rise. Raypaks online calculator allows pool owners to input specific information about their pool and location and configure what size heater is best, not only for their pool but taking your physical location into consideration as well.

What is a 50k BTU heat pump?

50K BTU heat pumps are meant for small pools, or aboveground pools, under 12,000 gallons. It will work on larger pools, but heating will be slow and total temperature rise may not be what you desire.

What is the maximum temperature for a hot tub heater?

For example, if a pool has an attached hot tub, the maximum water temperature for calculating Btu requirements would be as high as 104 degrees Fahrenheit.

How to calculate BTU per hour?

This figure represents the heater output necessary to heat the pool to the desired temperature in 24 hours, based on an average wind velocity of 3.5 mph.

What is the most important thing about purchasing a pool heater?

The most important thing about purchasing a pool heater is determining the correct size for your above ground pool. Determining the correct size will save you money as a pool heater with the correct amount of BTUs will limit the overall run time and reduce your electric bill throughout the season.

What is the best way to keep a pool warm?

A pool solar heat cover is one of the most cost effective ways to keep your pool at a comfortable swimming temperature, learn how to properly use a cover.

How many BTU per gallon of water?

Size at 4 BTU’s per gallon or 1 BTU per litre of water. To heat in normal summer conditions when ambient air temperature average 70°F in a 24 hour period.

When to use pool cover?

We recommend the use of a pool cover during chilly periods.

Do pool heaters shorten the heat?

More importantly, throughout the colder months when you would like to use your heater the most, you will shorten the overall heat time of your pool and in turn also limit the amounts of electricity required to run the unit.