# What Size Radiator Do I Need?

This radiator size guide will tell you everything you need to know in order to make sure you purchase the right size radiator for your home.

Checkout this video:

## How to measure your room

Measure the length and width of the room in feet. Include the door in your measurement if the radiator will be mounted on it. Multiply the length and width to get the square footage of the room.

### Length x width of the room in feet = _____

In order to calculate the size of radiator required for a room, you need to take into account the dimensions of the room in question. To do this, you will need to measure the length and width of the room in feet. Once you have these measurements, you can multiply them together to get the square footage of the room.

For example, if a room is 10 feet wide and 12 feet long, the square footage of the room would be 120. This means that you would need a radiator that is capable of radiating 120 BTUs per hour in order to properly heat the space.

When choosing a radiator, it is important to select one that is designed for the specific type of heating system that you have in your home. For example, if you have a forced air furnace, you will need a different type of radiator than if you have a boiler. Additionally, it is important to select a radiator that is rated for the specific voltage that your system uses. Choosing a radiator with too high or too low of a voltage rating can cause damage to your heating system.

### Height of the room in feet = _____

To find out what size radiator you need for your room, first use a tape measure to find out the height and width of your room in feet. Once you have these measurements, multiply the height by the width to find the square footage of your room. For example, if your room is 10 feet wide and 12 feet long, it’s 120 square feet.

Keep in mind that you need more BTUs (British Thermal Units) to heat a cold room than a warm one, and rooms with high ceilings need more BTUs than rooms with low ceilings. Ceiling height is important because heat rises. Also, take into account any doors or windows in the room—they let heat escape.

## How to calculate BTUs

Radiators are an important part of any forced-air heating system, and the size of the radiator will determine the amount of heat that is produced. To calculate the BTUs (British Thermal Units) of a radiator, you need to know the dimensions of the radiator and the material it is made of.

### BTUs = length x width x height x 0.133

The British Thermal Unit (BTU) is a unit of measurement of heat energy. BTUs are commonly used to describe the power of heating and cooling systems, such as furnaces, boilers, and air conditioners.

To calculate the BTUs required to heat a room, you will need to know the dimensions of the room in question. Once you have these measurements, you can use the equation: BTUs = length x width x height x 0.133.

For example, if you have a room that is 10 feet long, 12 feet wide, and 8 feet tall, your calculation would be: 10 x 12 x 8 x 0.133 = 11,520 BTUs.

This number is an estimate – for a more accurate calculation, it is best to consult with a heating and cooling professional.

## How to find the right radiator size

If your radiator is too small, it won’t be able to heat up your room properly. If it’s too big, it will be a waste of money. So how do you know what size radiator you need?

### Use a BTU calculator

There are a number of ways to calculate the size of radiator needed for a room, and using a BTU calculator is one of the most accurate. BTU stands for British Thermal Unit, and is a unit of measurement that indicates how much heat a radiator can generate.

To use a BTU calculator, you will need to know the dimensions of the room you are looking to heat, as well as the number of windows and doors. You will also need to know the insulation rating of the room, as well as the average temperature you would like to maintain. Once you have this information, you can plug it into a BTU calculator and it will tell you how many BTUs you will need to generate in order to heat the room effectively.

### Consider the climate

Choosing the right size radiator for your home can be tricky. There are a few things you need to take into account, like the climate you live in and the type of heating system you have. In this article, we’ll go over some of the main factors you need to consider when picking out a radiator.

The first thing you need to do is consider the climate you live in. If you live in an area with cold winters, you’ll want a radiator that can provide enough heat to keep your home warm. On the other hand, if you live in a milder climate, you won’t need as much heat and a smaller radiator will suffice.

Next, you’ll need to think about the type of heating system you have. If you have a forced air system, your radiators will need to be able to move the air around in order to work properly. However, if you have a radiant heating system, your radiators will simply need to radiate heat in order to work effectively.

Finally, you’ll need to take into account the size of your home. The bigger your home is, the bigger your radiators will need to be in order to adequately heat the space. Conversely, if your home is on the smaller side,you won’t need as much heat and smaller radiators will do just fine.

Now that you know some of the main factors to consider when choosing a radiator, it’s time to start shopping around! Be sure to keep these tips in mind and you’re sure to find the perfect radiator for your home in no time.

### Consider the type of heating

The type of heating in your property will make a big difference to the kind of radiator you need. If you have a standard boiler, then you’ll need a different type of radiator than if you have a system boiler or a heat-only boiler.

If you have a standard boiler, then you need what’s called a ‘traditional’ or ‘conventional’ radiator. These are the most common type of radiator, and they work by heating up water that’s stored in a tank.

If you have a system boiler, then you need a ‘low surface temperature’ or ‘LST’ radiator. These work in a similar way to traditional radiators, but they don’t get as hot on the surface, so they’re safer for homes with young children or pets.

If you have a heat-only boiler, then you need what’s called an ‘air source heat pump’ or ‘ground source heat pump’. These work by taking heat from the air or ground and using it to heat your home.

Installing your radiator is a simple process that anyone can do with a little bit of knowledge and the right tools. In this article, we’ll show you how to install your radiator in just a few easy steps.

### Follow the manufacturer’s instructions

You will find the manufacturer’s instructions packed with your new radiator. Please read and follow these carefully, as they will guide you through the installation process step by step. If you have lost or misplaced your instructions, most manufacturers will have them available to view and download on their websites.

There are three main types of radiator: panel radiators, column radiators and towel rails. The process for installing each type is slightly different, so please make sure you select the correct instructions for your radiator before starting.

Panel radiators are the most common type of radiator in UK homes. They are available in a wide range of sizes and shapes to suit any room, and can be fitted horizontally or vertically to suit your space. Most panel radiators come with pre-drilled holes for easy installation, but some may require additional drilling.

Column radiators are a more traditional style of radiator that is growing in popularity due to their range of sizes and designs. They are usually made from cast iron or steel, which gives them a significantly longer life span than other types of radiator. Column radiators can be quite heavy, so you may need help lifting them into place during installation. Again, pre-drilled holes will make installation easier, but may not be present on all models.

Towel rails are a type of radiator that is designed specifically for heating towels. They come in a variety of sizes and designs to suit any bathroom, and can be wall-mounted or freestanding depending on your preference. Towel rails are usually made from stainless steel or aluminium for maximum heat retention. Most towel rails come with all the necessary fixing screws and wall plugs included, making installation quick and easy.

### Hire a professional if needed

Although it is possible to install a radiator yourself, it is generally best to hire a professional. This is especially true if the job is complex, such as when adding an additional radiator to an existing system. A professional can ensure that the job is done correctly and that your warranty remains intact.