## How many BTUs do I need for a 20000 gallon pool?

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.

## 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 30000 gallon pool?

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.

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## How much gas does a 400k BTU pool heater use?

For a typical size 400,000 BTU heater, that equals 4 gallons an hour. Currently, propane costs between \$4.50 to \$5 per gallon.

## What is a good temperature to heat your pool?

According to The United States Water Fitness Association, water temperatures for younger children and the elderly will generally need warmer temperatures ranging from 84 to 94 degrees Fahrenheit, while a comfortable pool temperature for adults is 85 to 89 degrees.

## What is the average lifespan of a pool heater?

You can expect a gas or heat pump pool heater to last 8 to 11 years, with an average of 10 years. Regular usage and maintenance is key to a longer lifespan.

## What size pool heater do I need for a 40000 gallon pool?

EXAMPLE: To raise the temperature to a 40,000 gallon pool 2o per hour, the heater should be approximately twice the capacity of a Model DR or F650-WP – selecting a Model CLM150-WP (1,500,000 BTU).

## Is a pool heater worth it?

If you want to get as much time as possible out of your pool, however, a heater is a good investment. With a pool heater, you can easily be swimming May through mid-October, giving you a good five months of use out of your pool. That’s literally double the amount of time you’d get without one.

## How many gallons of propane does it take to heat a pool?

Here’s why: the average propane pool heater burns about 1 gallon of propane per hour per 100,000 Btus. Since a propane pool heater for a standard-sized pool (~21,000 gallons) outputs 400,000 Btus, you will burn about four gallons of propane per hour.

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## How long does it take to heat a 10000 gallon pool?

It depends on the size of your pool but a 116 BTU heater will raise 10000 gallons of water about 1.4 degrees per hour. 20000 gallons 0.7 degree per hour.

## Are pool heaters expensive to run?

The size of your pool also matters, with larger pools costing more to heat than smaller ones. On average, however, a gas heater costs around \$200 to \$400 a month to run. Electric heat pumps cost less, coming in at about \$100 to \$200 a month.

## Should I keep my pool heater on all the time?

Physicist: The correct answer is always to leave the heater off for as long as possible, as often as possible. The one and only gain from leaving a pool heater on is that it will be warm when you get in.

## Should I leave my gas pool heater on all the time?

Conclusion. It is not advisable to heat your pool at night because of the time and energy it will consume. You’re advised to heat your pool during the day for more efficiency, and if you can, buy a solar blanket to retain the temperature of your pool.