Stove Size Calculator
Find the right Penguin for your room
This calculator is based on the standard guide of 1 kW per 14 m³ of room volume, adjusted for your insulation and glazing.
Room Dimensions
Insulation Level
Poor = solid walls, single glazing or no loft insulation · Good = cavity walls, double glazing, fully insulated
Consider how quickly your house cools down when the heating goes off. A poorly insulated house will not retain the heat for long.
Window & Glazing
Number of External Walls
How many of the room's walls face outside, rather than an adjoining room or corridor?
The calculator cannot take into account all unseen factors in your home or how many hours a day you plan to have the stove lit, so tends to underestimate the output required. It is only an estimate and must be confirmed by a home survey prior to purchase.