BTU Calculator | Choose Your Cast Iron Radiator

HOW TO CHOOSE THE RIGHT CAST IRON RADIATOR

Use our quick and easy guide to calculate the required BTU Output for your room, then find your radiator :)

Step 1 What type of boiler do you have? Select below:

Step 2 Select the height of your new radiator:

Cast Iron Radiators are either 19 Inches high or 25 Inches high. The difference is merely a personal preference
but you probably won't want your radiator to be higher than the bottom of your window, so you might want to plan around that.

Choose Yours:

Step 3 Select the width you need:

Note: 19 Inch High Units are only availaible in 4 Tube Width.

Width is determined by number of tubes (See below). They are available in either 4 tube or 6 tube models.

Choose Yours:

What's the difference between a 4 tube model and a 6 tube model?. Once again a personal preference.
A 4 tube model is 4.5 Inches wide and a 6 tube model is 6 7/8 Inches wide so mybe plan around your room square footage.

Step 4 Calculate the required BTU Output:

Room Dimensions:

Width*

Height*

Length*

Window Area X² (Calculate this by multiplying window height by window length)*

Room Information:

Type of room:*

Where are you heating?

What is below the room?*

Think about the flooring of your room, and whether there is another room below

What is above the room?*

Where applicable, choose the amount of insulation

Select type of outside wall:*

This help us calculate how much heat the room might lose

Select type of window:*

This also helps us determine the expected heat lose in the space

HOW TO CHOOSE THE RIGHT CAST IRON RADIATOR

Step 1 What type of boiler do you have? Select below:

Step 2 Select the height of your new radiator:

Step 3 Select the width you need:

Note: 19 Inch High Units are only availaible in 4 Tube Width.

Step 4 Calculate the required BTU Output:

Type of room:*

What is below the room?*

What is above the room?*

Select type of outside wall:*

Select type of window:*

Select number of outside walls(Optional):*

Your Requirements

Boiler =

Selected Height = "

Tube =

BTU =

Below are the suitable models for you

Got Another Room?
Start Over

HOW TO CHOOSE THE RIGHT CAST IRON RADIATOR

Step 1 What type of boiler do you have? Select below:

Step 2 Select the height of your new radiator:

Step 3 Select the width you need:

Note: 19 Inch High Units are only availaible in 4 Tube Width.

Step 4 Calculate the required BTU Output:

Type of room:*

What is below the room?*

What is above the room?*

Select type of outside wall:*

Select type of window:*

Select number of outside walls(Optional):*

Your Requirements

Boiler =

Selected Height = "

Tube =

BTU =

Below are the suitable models for you

Got Another Room? Start Over

Got Another Room?
Start Over