Frequently Asked Questions
No the efficiency rating is a standard measure of efficiency in the UK and EU. The efficiency rating is not reliable for comparing stoves to each other as the BS and European EN standards allows the manufacturer to change the refuelling period and the heat output to test at so as to get the efficiency they want.Was this answer helpful? Yes No
In line with the BS and European EN standards the efficiency of stoves are presently measured in the following way:
- The manufacturer gets to specify a refuelling period, with a minimum period of 45 mins and no upper limit.
- The manufacturer gets to specify the heat output to test at.
- The manufactuer can also specify the size of the fuel (within a reasonably limit).
- The efficiency is then calculated as the average efficiency over the period.
The flue gas temperature is measured as well as the carbon content of the flue gases. This allows the wasted heat and wasted fuel to be known, because there is a known quantity of fuel being burnt this allows the efficiency of the stove to be calculated.Was this answer helpful? Yes No
To decide what heat output your stove should be, you will need to measure the length, width and height of the room that you are going to put the stove in. If you are unsure how to do this contact one of our satff who will be happy to arrange a visit or do this calculation for you.Was this answer helpful? Yes No
A woodburning stove has a flat bottom on which the wood burns on a bed of wood ash. Wood burns slowly and better in a woodburning stove than it will in a multifuel stove, so in this sense a woodburner is better suited to burning wood. However, even using a woodburner, it is generally not efficient to slow burn wood when compared to coal, so try to avoid slow burning or overnight burning in woodburners.Was this answer helpful? Yes No
Multifuel stoves have a grate on which the fuel burns and an air inlet which allows air to enter from below this grate. An ash pan catches the ash as the fuel burns, so that it can be taken away. Multifuel stoves can burn a combination of wood and coal. Only Multifuel stoves offer this flexibility. It is always good practice to line a chimney when fitting a stove (as their greater efficiency means colder flue gasses, leading to tar build up in the chimney) but if you are planning to do any amount of woodburning on your multifuel stove, lining and insulating the chimney is a must.Was this answer helpful? Yes No
Coal, Oil & Gas are made from the remains of prehistoric trees and plants, (hence the term fossil fuel), in which the main components are carbohydrates. In order to grow, these plants took in carbon dioxide from the air and converted the energy into carbohydrates. Over millions of years those trees and plants died and were laid down on top of each other and subjected to intense pressure. After a long time these plant residues turned into coal.
This coal is a huge store of ancient carbon dioxide. Therefore when we burn the coal in a multifuel stove, this carbon dioxide is released into the atmosphere again contributing to the greenhouse effect./p> Was this answer helpful? Yes No
(sometimes referred to as cleanheat stove) will very efficiently burn wood. When you burn wood in a wood stove what is esentially happening is that gas is given off from the wood and it is this that actually burns. This gas needs oyxgen (from air) to burn and this oxygen can be quickly used up. By introducing a fresh supply of oxygen above the fire, gases that otherwise would have been sucked up the chimney are burnt. This is also referred to as Secondary combustion. This creates extra heat (cleanburning stoves will often have a higher heat output than the non cleanburn model) as well as reducing emissions. Combustion and efficiency are increased by heating the supply of air - this is done by drawing the air through channels next to the hot firebox of the stove before it is directed to the top of the fire.Was this answer helpful? Yes No
The Clean Air Acts of 1956 and 1968 were introduced to deal with the smogs of the 1950s and 1960s which were caused by the widespread burning of coal for domestic heating and by industry. These smogs were blamed for the premature deaths of hundreds of people in the UK. The Acts gave local authorities powers to control emissions of dark smoke, grit, dust and fumes from industrial premises and furnaces and to declare "smoke control areas" in which emissions of smoke from domestic properties are banned. Since then, smoke control areas have been introduced in many of our large towns and cities in the UK and in large parts of the Midlands, North West, South Yorkshire, North East of England, Central and Southern Scotland. The implementation of smoke control areas, the increased popularity of natural gas and the changes in the industrial and economic structure of the UK lead to a substantial reduction in concentrations of smoke and associated levels of sulphur dioxide (SO2) between the 1950s and the present day.Was this answer helpful? Yes No
Logs may only be burnt on stoves that have been granted exemption from the regulations by the government through DEFRA. Exempt appliances are appliances (ovens, wood burners and stoves) which have been exempted by Statutory Instruments (Orders) under the Clean Air Act 1993 or Clean Air (Northern Ireland) Order 1981. These have passed tests to confirm that they are capable of burning an unauthorised or inherently smoky solid fuel without emitting smoke.Was this answer helpful? Yes No