Info & Advice

Heat Output Calculator

Find the right kW stove for your room

Room dimensions

Measure the room you want to heat.

Length

Width

Height

How well insulated is the room?

GoodModern build / upgraded

AveragePre-1990 / unsure

PoorOlder, draughty home

Open to another room or a staircase?

Yes

Like the room warmer than 20°C?

Yes

You need approximately

— kW

This is a guide only. Room shape, chimney draw and fuel all affect real-world output — talk to our Heating Centre team before you buy.

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