Woodwarm Stoves 10Kw Plus Installation and operating instructions manual - page 15
15
Air Bleed Control
A small air bleed hole adjustment is provided, it is either located on the airwash lever, or behind it. Its function is to
allow you to “Set” the stove to the chimney draught. Open it fully and over the first couple of extended burning peri-
ods, monitor the result of your stove's slumber. If it fails to stay alight long enough, by burning through all the fuel
too quickly, reduce the setting until you are happy. When you are, tighten up the self tapping screw, so that in fu-
ture when you fully shut the airwash lever this hole will allow the stove to remain just open. Chimneys with a high
draw may require this small air bleed hole to be closed.
Chimney Fires
If the chimney is thoroughly and regularly swept, chimney fires should not occur. However, if a chimney fire does
occur turn the air control setting to the minimum, and tightly close the doors of the stove. This should cause the
chimney fire to go out in which case the control should be kept at the minimum setting until the fire in the stove has
gone out. The chimney and flue ways should then be cleaned. If the chimney fire does not go out when the above
action is taken then the fire brigade should be called immediately.
After a chimney fire the chimney should be carefully examined for any damage. Expert advice should be sought if
necessary.
Boilered Stoves Note:-
Cleanburn will be a little more difficult to achieve with boilered stoves. However perseverance to achieve as high
combustion temperatures as possible will assist in keeping the glass clean.
EXTENDED BURNING PERIODS
When burning solid fuel the stove should be de-ashed, the bottom air controls opened for a brief period and when
the fire is burning brightly it should be loaded with fuel without dowsing the flames. The bottom air controls should
then be closed. The stove will burn more slowly if a smaller size of solid fuel is used.
The opposite is true when burning wood, thus if longer burning times are required use dry large logs of a hard wood
rather than small ones, remembering to keep a bed of ash above the grate bars.
Some fuels need more air than others to tick over, some experimentation will be necessary to find the right setting.
Do not mix solid fuel with wet wood in an attempt to achieve long periods of burning.
Remember to allow the stove to reach operating temperature before closing air controls.
Plumbing notes
Please read these notes prior to installing your Woodwarm boilered stove
∗
A boilered stove will have a lower combustion temperature than a dry stove and will not reach the clean burn
state as readily.
∗
Always site the circulating pump on the return.
∗
Do not fully pump a solid fuel stove as it is refuelled on a two hour refuelling cycle and may not be able to get
it’s heat load up to temperature when fully pumped
∗
When a pump is used on the heating circuit ensure that it’s action is controlled by pipe thermostats to stop it
circulating water which is under 50°C
∗
Ensure one third of the system can rise to a gravity section of the circuit.
∗
Do not pressurize the system, always use an open vented circuit.
∗
If combining two or more heat sources think of using a “Link Up” Neutralizer as part of the circuit, it will assist
in even distribution from both heat sources.
∗
Where there are two pumps in the system, possibly as above, there will need to be a three channel
∗
programmer incorporated such as the Honeywell ST699.
∗
Do not directly plumb under floor heating into the circuit. For under floor heating there will need to be a heat
store (Thermal Accumulator, thermal store)
A Heat Store is a very efficient way of using heat. A stove can be fired flat out to heat it, which is the most efficient
way to use the boilered stove. The stove can then be allowed to go out, with the electric controls distributing mains
pressure hot water and circulation water as and when required.
In choosing a heat store look for at least 100mm of insulation.
It can be plumbed directly to the stove but it must have the relevant safety measures and it must be a minimum
1800mm above the stove.
For size and heat calculations use 10 litres per square metre
One shower = 20 minutes = 10kw
40W/sq mtr new house
60W/sq mtr old house
80W/sq mtr draughty old mansion
Try www.heatweb.com for more details on Heat Stores