Q. What size stove do I need?
A. The output is given in kW (kilowatt) and corresponds to the heat given off by the stove at a certain time. The more you burn, the greater the heat output.
The calculation required for the room in which the stove is to be fitted is:
(length (m) x width (m) x height (m)/ 14 = output required in kW
If there is excessive heat loss from the room through windows, doors and stairways, a Henley Stove with higher heat output would be recommended.
Q. What size boiler stove do I need?
A. One of the main points to consider is the required output of water to heat the desired rooms/domestic water.
Many factors need to be considered when choosing a boiler stove:
- Size of the property and number of rooms.
- Total number and size of radiators.
- How old the property is with regards to insulation and heat loss.
- What type of fuel is to be used, wood or solid fuel.
It is advised to seek professional advice from a qualified plumber before choosing and installing a boiler stove. Henley Stoves can only outline what our products are capable of to assist your engineer in designing your home heating system
Q. How much space should I leave around my stove?
A. Combustible materials
The distance between the stove and any combustible material changes dependant on the model. This is due to the different kW heat outputs, size and the construction of each stove and how it operates. All Henley Stoves have been independently tested to calculate the minimum distance required for combustible materials. This information is available on our website, or in your Henley Stoves installation manual.
We suggest that no stove is left with less than 100mm at either side and 25mm at the rear for it to work effectively and that you can feel the benefit of its heat output. The more space you can provide the better it will work, so keep this in mind when choosing a stove or carrying out any building work
Q. Is my chimney, flue or fireplace suitable for a stove installation?
A. We highly recommend that you have a registered member of a Competent Person Scheme (e.g. HETAS approved installer) to carry out a full site survey and inspect the suitability of your fireplace and chimney and advise on the right product for you.
It is a legal requirement that the installation of wood and solid fuel appliances is the subject of notification to your building control body. Alternatively, there are several Competent Person Schemes in the UK, whose members can self-certify on completion as compliant with the requirements of the Building Regulations.
Q. Do I need A Flue Liner for my chimney?
A. Document J Building Regulations says that a chimney doesn’t have to be lined if it’s construction is sound and is suitable for its intended use.
However, if there is any doubt about the integrity of the chimney, line it, Carbon Monoxide (CO) poisoning nearly 50 each year according to HSE.
Q. What Fuel can be used in My Henley Stove?
A. Wood Fuel- Burn only seasoned timber with a moisture content of less than 20%. Poor quality timber causes low combustion efficiency, produces harmful condensation, reduces eﬀectiveness of the air wash and life of the appliance.
DO NOT burn construction timber painted, impregnated/treated wood, manufactured board products or pallet wood.
Solid fuel – Burn the only anthracite or manufactured briquette smokeless fuels listed as suitable for use with closed heating appliances.
Q. How do I light my stove?
A. Lay paper and kindling (or Firelighters) on the grate with small logs (if multifuel stove, small coals can also be used) on top.
Open top air inlet and bottom air inlet.
Light stove and close door.
When logs start to burn, close the bottom air inlet and use only the top air inlet to control the fire.
For some coals, it may be necessary to have the bottom air inlet open a fraction all the time and to have the grate cracked open a fraction.
Q. Why is there smoke coming from the stove’s air inlets?
A. Combustion gases can build up in the firebox and ignite, causing smoke to puﬀ out of the air inlets and other openings. This occurs if the air controls are shut soon after adding new fuel to a very hot fire. This can be prevented by opening the air controls to increase combustion air and burning rate.
Q. Why is there little or no heat from my stove?
A. If your stove is installed in an alcove, you need to cap oﬀ the area directly above the stove by installing a 3mm mild steel plinth with insulation to prevent the heat from escaping.
If the fire continues to consume large amounts of fuel you may need to check the baffle plate is fitted correctly and if there is too much of a draw up the chimney.
A simple test would is to open the door of the stove when it is not lighting and listen to see if you can hear the wind in the chimney.
If so, this means you might need to install a damper in the flue to prevent the updraught. We recommend you contact a piping specialist to assess your situation.
Q. My fuel grate has already burned out, why is this?
A. Burning large amounts of solely anthracite coal on a continuous basis will result in the grate burning out much quicker compared to using the recommended fuel.
We recommend you a mixture of fuels such as turf, briquettes smokeless coal (if a multifuel stove) and wood.
Not cleaning the grate after every fire will also result in the grate burning out prematurely.
Q. How often should I sweep my chimney?
A. A chimney should be swept at least once a year, by a suitably qualified engineer who will provide a certificate of completion covering the visual condition of the flue and compliance with Document J.
A stove used as the main source of heating and burning predominantly wood should be swept twice a year.