Heat Calculator

BTUs are ‘British Thermal Units’, the unit in which radiator efficiency is measured. Factors such as room dimensions, window size and wall material are used to calculate the required outputs of a radiator, in order to heat your room efficiently.

Use our BTU Calculator to determine the heat requirements of your room. Place your details in the corresponding fields and you can calculate the amount of BTUs you need to ensure your space is always warm enough to suit your needs.

BTU Calculator

Room Details

Room:

Height: (m)

Width: (m)

Depth: (m)

Floor Area: (m²)

Window

Area: (m²)

Type:

Surround

External Walls:

Type:

Underneath:

Above:

Room

Enter the details of the room.

Room

Height (m)

Width (m)

Depth (m)

Windows

Enter details about the rooms windows.

Window area (m²)

Window Type

Surround/Insulation

Enter details about the surroundings and insulation.

Number of outside walls

Type of outside walls

What is underneath the room?

What is above the room?

Result

Based on the information provided the BTU required is:

Below are a selection of products that meet your needs.

BTU 1328 - 2433

BTU 768 - 1532

BTU 2393 - 7071

BTU 2545 - 6345

BTU 2477 - 2477

BTU 720 - 897

BTU 911 - 911

BTU 1000 - 1986

BTU 1000 - 1986

Herbie 4 Column

BTU 716 - 15013

Herbie 3 Column

BTU 542 - 12010

Herbie 2 Column

BTU 481.112022 - 8325

BTU 1450 - 1450

BTU 3057 - 3057

Essential Ladder Rail (22mm)

BTU 1040 - 2474

BTU 494 - 494

Hawkshaw Electric

BTU N/A - N/A

Modus Electric Horizontal

BTU N/A - N/A

BTU N/A - N/A

BTU 1474 - N/A

BTU 2427 - 5826

BTU 2136 - 6769

Modus Electric Lacquered Horizontal

BTU N/A - N/A

BTU 1436 - 1910

BTU 1774 - 2673

BTU 1109 - 3777

BTU 1433 - 3777

BTU 973 - 1947

BTU 1264 - 3123

BTU 1399 - 2388

BTU 1399 - 2388

BTU 667 - 2572

BTU 1328 - 2572

BTU 467 - 467

BTU 1471 - 2450

BTU 1171 - 2199

BTU 616 - 890

BTU 991 - 1329

BTU 792 - 983

BTU 1408 - 3446

BTU 1434 - 3483

BTU 525 - 814

BTU 1115 - 1475

BTU 1501 - 1892

BTU 1460 - 3693

BTU 693 - 1027

BTU 624 - 788

BTU 584 - 1638

BTU 1785 - 3844

BTU 1232 - 4139

BTU 1658 - 5572

BTU 1935 - 5773

BTU N/A - N/A

BTU 1976-5719 - N/A

Modus Made to Measure

BTU 225 - 49230

BTU 1928 - 9192

4 Column Cast Iron

BTU 480 - 17080

6 Column Cast Iron

BTU 963 - 25120

Bronte Cast Iron

BTU 756 - 20200

Loxley Cast Iron

BTU 931 - 24440

BTU 3223 - 6445

BTU 2155 - 3966

BTU 2829 - 5654

BTU 1085 - 3835

BTU 938 - 5937

BTU 1688 - 2900

BTU 1722 - 7344

BTU 597 - 19448

BTU 839 - 24157

BTU 573 - 14467

Brochures

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