White Zehnder Charleston column radiator on floor feet beneath a window in a bright living room

Radiators.co.uk

The only place to go for radiators

An extensive range of radiators from leading brands.

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Not sure what size you need?

Estimate the heat output a room needs, in BTU per hour. Enter the room size in feet or metres, then compare radiators at the same test condition (ΔT).

Measure the room in

Feet Metres

Length (ft)

Width (ft)

Height (ft)

Type of room

Is the room south facing?

Yes No

Does the room have double glazed windows?

Yes No

Enter the room size and answer the three questions to see an estimate.

The calculator needs JavaScript. The estimate is length x width x height in feet, multiplied by the room factor (Bedroom 4.5, Kitchen 3.5, Bathroom 5, Living Room 5, Dining Room 3.5, Hallway 3), by 0.85 if the room is south facing and by 0.9 with double glazing.

This gives a rough estimate of the heat output a room needs. For bigger rooms you may need several radiators to reach that output.

Based in Barnsley
Unit 2D, Shortwood Ct, Hoyland, Barnsley S74 9LH. Please call before visiting.
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Radiators.co.uk is owned by Bumford Heating Limited.
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Delivery and returns