Heat Pump Sizing Chart – Inground Pools
| Pool Size (Feet) | Summer 4 BTU’s | Spring & Fall 5 BTU’s |
|---|---|---|
| Up To 10,000 Gallons 12′ x 24′ | 50,000 BTU | 50,000 BTU |
| Up To 15,000 Gallons 14′ x 28′ | 85,000 BTU | 85,000 BTU |
| Up To 20,000 Gallons 16′ x 32′ | 85,000 BTU | 110,000 BTU |
| Up To 25,000 Gallons 18′ x 36′ | 110,000 BTU | 125,000 BTU |
How many BTU do I need for inground pool?
Or approximately 100K BTU’s for every 10,000 gallons of pool water. For inground pools less than 20,000 gallons, small gas heaters like the Raypak 206K BTU output are suitable. Pools up to 30,000 gallons should look at the Pentair 300K BTU or higher, and pools over 50,000 gallons should look at the Hayward 500K BTU.
How many BTUs do I need for a 20000 gallon pool?
166,000 Btu
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 raising this entire 20,000-gallon pool by one degree will require 166,000 Btu of heat energy.
How do I know what size heater I need for my pool?
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.
How many Btus does it take to heat a 15000 gallon pool?
In-ground pools and spa general run from 100K to 400K BTU. For an average 15′ x 30′ pool (15,000 gallons), a 300K BTU heater would raise your pool temperature 2 degrees per hour; a 400K BTU heater, 2.7 degrees per hour. How many kw does it take to heat a pool?
Can you oversize a pool heater?
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.
How do you calculate BTU?
BTU = Flow Rate In GPM (of water) x (Temperature Leaving Process – Temperature Entering Process) x 500.4*Formula changes with fluids others than straight water.
How much does it cost to heat inground pool?
The Average Cost of Running a Pool Heater
| Type of Heater | Cost Per Year | Cost Per Month |
|---|---|---|
| Heat Pump | $700 to $2,400 | $120 to $200 |
| Electric Resistance | $2,100 to $7,200 | $175 to $600 |
| Propane | $2,500 to $10,200 | $200 to $850 |
| Natural Gas | $1,400 to $4,800 | $200 to $400 |
How many BTUs do you need for a pool heater?
That means that if you have a swimming pool that holds 20,000 gallons, it requires 166,000 BTUs to increase by one degree. Then divide this number by 24 to find how many BTUs you need to raise the temperature by one degree over 24 hours.
How to determine BTUs for a gas heater for an inground?
The formula for sizing a gas heater determines the heater’s British thermal unit output per hour required to heat the pool to the desired temperature in 24 hours. Figure the surface area of a typical rectangular residential pool by multiplying the length in feet times the width in feet.
Which is faster to heat a pool 400K or 200k?
It is true that larger heaters heat your pool faster than smaller ones. 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.
How to calculate the power of a pool heat pump?
Calculate the amount of heating power (BTUs) needed to heat your pool You already have all the numbers you need, so here’s the formula: Pool Surface Area x Temperature Increase x 12 = BTUs needed Ex.) 450 x 20 x 12 = 108,000 BTUs
