# How to calculate BTUs to heat water?

Article by: Mateo Zepeda | Last update: April 10, 2022
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We recommend calculating 1BTU for each liter of water, this in ideal conditions of your heating system.

## How many BTUs do I need to heat?

basic calculation

One BTU is enough to heat about 55 cubic feet (1.55 m2) of air by one degree Fahrenheit. To find out how many BTUs it takes to heat a square foot of floor space, you need to determine the cubic volume of the area to be heated and the maximum temperature needed.

## How many watts do I need to heat 1 liter of water?

For example, heating a liter of spa water from 20 to 35 degrees Celsius requires 0.018645 kilowatt-hours of energy because 18.645 divided by 1,000 = 0.018645.

## How do I calculate BTU?

The application of the formula to calculate btu per m2 for rooms is:

Calculation Btu Air Conditioning = 650 x living room area + 500 x people maximum. Calculation Btu Air Conditioning = 650 x 20m2 + 500 x 3 people = 14500 btu/h.

## How to calculate the BTUs to heat a pool?

(Gallons + 10%) X 10 = BTUs needed to raise the temperature 1 degree (Fahrenheit) per hour.

30 related questions found

### How to calculate the number of solar panels required to heat a pool?

The number of panels you require will depend on several factors. As a general rule, at least one square meter of solar panels is installed for each square meter of pool surface.

### How to know the power of a pump for a swimming pool?

The calculation is very simple. You just have to multiply the length, width and depth. You should also keep in mind that each cubic meter of water is equivalent to a thousand liters. Likewise, a pump must have 0.1 CV of power for every 100 liters that it must move.

### How do you calculate BTUs per square foot?

How do I calculate the correct BTU amount for my room? The following formula will give us an idea of ​​the number of Thermal Units that your air conditioner must have to be effective according to the volume of the room: Room volume: length x width x height = We divide the result by 2.

### How many square feet does a 12,000 BTU air conditioner cover?

Capacity (Btu/h): 12,000. Covers a surface: Between 20m2 Approximately (Max. height 2.5mt)

### What kind of energy is needed to boil a liter of water?

heat of vaporization of water

That is, water has a high heat of vaporization, which is the amount of energy needed to transform one gram of a liquid substance into a gas at constant temperature. The heat of vaporization of water is about 540 cal/g at 100°C, the boiling point of water.

### How long does it take to heat a liter of water?

Depending on the capacity of the water, a thermos can take from 1 to 4 hours to heat up. To choose the capacity of the thermos well, we must take into account the people who live in the house, their habits and their needs.

### How do I know which heat pump I need?

How to choose the ideal heat pump for the pool

Choose the size of your pool well. The altitude of the territory and the area where the pool is located. Wind direction in the geographical area.

### What does 18,000 BTUs mean?

The acronym BTU stands for “British Thermal Unit”. A BTU measures the amount of heat an air conditioning unit can extract from a room. As the BTU rating increases, so does the size, weight, and cost of the air conditioner.

### How many liters does a heat pump heat?

26,000 btu heat pump can heat 42,000 liters.

### How much does a 12,000 BTU Chile air conditioner consume?

In other words, they spend between \$3 pesos and \$144 pesos per hour, depending on their power. In the case of the 12,000 BTU Hot/Cold Portable Air Conditioner, its consumption of watts depends on the mode of use.

### How many square meters does an air conditioner heat?

From 8 to 12m2, an air conditioner with a capacity of 11,000 BTU is needed. From 12 to 16m2, an air conditioner with a capacity of 13,200 BTU is needed. From 16 to 20m2 an air conditioner with a capacity of 15400 BTU is needed. From 20 to 25m2, an air conditioner with a capacity of 19800BTU is needed.

### How is air conditioning calculated for an environment?

The calculation of frigories is then as follows: LENGTH (meters) X WIDTH (meters) X HEIGHT (meters) X 50 = Frigories /hr. There we will have an estimated idea of ​​the amount of fridges that we will need due to the incidence of external factors.

### What pump takes a swimming pool?

Within the equipment of a swimming pool, the filtration pump is perhaps the heart of its correct operation. The filtration pump is responsible for absorbing the water from the pool for proper cleaning, and is also responsible for sending the water back to the pool.

### What pump is used for swimming pool?

Self-priming and centrifugal pumps

Self-priming pumps are the most common in domestic pools. They are called that because they have the ability to suck water from the pool to take it to the filter and then push it back into the pool.

### How to choose the water pump?

Knowing the place of installation will tell us what type of water pump to choose. For example, if the water comes from a well, the ideal would be to choose a submersible pump, whose diameter will depend on the well. On the other hand, if the water comes from a tank, river or lake, we would choose a surface pump.

### How much m3 does a solar pool panel heat?

It depends mainly on the geographical area where the pool is located, the 1.22 x 3.05 m polypropylene panel that I handle offers a performance, for example, in Cuernavaca Morelos of 4.00 m3 per panel, in Puebla of 3.5 m 3 per panel for example, there are others factors that intervene as the length of the hydraulic line of …

### How many solar heaters do I need?

It is advisable to exceed at least 40 extra liters, due to heatstroke in winter. Which means that if your family has 2 members, the ideal would be a 130-liter heater, if your family has 4 members, the ideal would be a 150-liter solar heater, and so on.

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