In these days of high fuel costs the fashion in assessing stove sizes required has changed. Many people are buying the largest wood burning stoves or multifuel stoves that can possibly fit their fireplace, often too large for the actual room by way of the folowing kilowatt calculation, but lighting a smaller fire with less fuel when present in the room and when leaving the room, they stoke the fire with excess fuel, leave the room doors open (often with an eco-fan on top to circulate the heat). Using these techniques the heat travels from the stove round a good part of the home. This is what Tom and Sue from Country Kiln do in their own home.
In spring, summer and autumn, less heat is required from your wood burning stove in camparison to the heat production you will require in winter.
All wood burning stoves and multi fuel stoves have a kilowatt rating. That is the approximate maximum temperature the casting of the stoves body is able to cope with and is not an indication of the heat the stove can be expected to produce. Heat production, naturally, depends on the fire burning in the stoves - which wood, coal, peat, solid fuel, etc. is used, how much of the fuel is used, the calorific value of the fuel, how dry the fuel is and in what combinations the fuel is used, i.e. wood burning only or multi fuel (solid fuel and wood mixed). If you require less warmth a smaller fire can be burned in a large stove.
The method used to calculate the kw or heat production required to heat the room is Room Height in meters * Room Width in meters * Room Depth in meters, take the answer to that sum and divide by 14. This gives an estimate of the kilowatt of heat production needed to keep your room heated with an external temperature of 5 degrees above freezing. It does not give the kw rating of the stove required nor does this calculation consider insulation or drafts or heat loss up a large chimney or a vast range of other variables. It is a very, very rough guide and gives the killowatt required based on an external temperature of 5 degrees above freezing, where many people would not be really requiring much heat from their stove.
As you can see, the sum to calculate the heat required is not exact but rather a rough estimate.
In this day and age our advice is to buy the biggest stove you can fit in your fireplace and light a fire to suit your temperature needs which will vary from season to season.
For example, if you require 3 to 5 kilowatts to heat your room then the correct course is to buy a stove with a slightly larger kilowatt rating and light a fire to suit - your stove will then last you much longer. The best idea is to buy the stove which looks aesthetically pleasing in your fireplace. This is what adds the value to your home.
If you would like us to work out the kilowattage for your room more details or assistance or with the installation of a Country Kiln Wood Burning Stove please email your query to firstname.lastname@example.org (The Country Kiln team respond to all emails within 24 hours) or call 01560 483966 Monday to Friday 9am to 5pm GMT or Saturday 10am to 1pm