Stovax 7065lG, 7057, 7061lG Fuel Quality Wood, Fuel Quality Solid Fuel, Backpuffing, Flue Draught

OPERATING INSTRUCTIONS

•Dirty glass,

•Rapid creosote build-up in the chimney,

•Low heat output,

•Short burn times, excessive fuel consumption and blue/grey smoke from the chimney.

To help avoid large build-ups of tars and creosote within the stove and the flue system, it is recommended to burn at high output for at least 30 minutes each day. The use of Stovax Protector chimney cleaner will also help to reduce this problem (Stovax Part No. 7002).

9.2Solid fuel: Burn only manufactured briquetted smokeless fuels, listed as suitable for use with closed heating stoves.

Do not burn bituminous coal, ‘petro-coke’ or other petroleum based fuels, as this will invalidate the product guarantee.

9.3Fuel consumption at nominal heat output.

As tested at nominal heat output to the requirements of EN 13240: 2001 for intermittent operation.

		Fuel Consumption
Description		Kg/hour	Kg/hour
			Briquetted
		Wood
			Smokeless fuel
7057
7058	Huntingdon 25	1.45	0.69
7058BL
7058LG
7064
7065	Huntingdon 28
7065BL		1.90	0.92
7065LG
7054
7055	Huntingdon 30	1.90	0.92
7055BL
7055LG
7063	Huntingdon 35	2.05	n/a
	(wood)
7060	Huntingdon 35
7061		2.05	0.95
7061BL	(multi-fuel)
7061LG
7069	Huntingdon 40	2.66	n/a
	(wood)
7074	Huntingdon 40
7075		2.66	1.26
7075BL	(multi-fuel)
7075LG

9.4If you require advice on suitable solid fuels contact your local Approved Coal Merchant. Details can be obtained by ringing the Solid Fuel Association advice line on Freephone 0800 600 000. Or their web site at www.solidfuel.co.uk

10. burning performance

A number of factors can affect the performance of the Huntingdon stove. Some of these are listed.

10.1Fuel Quality (Wood)

Use only seasoned wood with a moisture content of less than 20%. Well seasoned logs should have the bark beginning to lift and peel away, along with deep cracks radiating from the centre of the log. Logs should feel lighter than fresh cut wood of a similar size and sound hollow when struck against each other. Logs should not feel damp to the touch, have any visible moisture oozing from them or moss and fungal growths on them.

Symptoms of poor performance related to wet woods include:

•Difficulty getting a fire going and keeping it burning well,

•Smoky fires with little flame,

•Dirty glass,

•Dirty firebricks,

•Rapid creosote build-up in the chimney,

•Low heat output,

•Short burn times, excessive fuel consumption and blue/grey smoke from the chimney.

To help avoid large build-ups of tars and creosote within the stove and the flue system, it is recommended to burn at high output for at least 30 minutes each day. The use of Stovax Protector chimney cleaner will also help to reduce this problem.

10.2Fuel Quality (Solid Fuel)

Use only recommended solid fuels, which are approved for use with closed appliances. Symptoms of poor performance related to unsuitable fuels include:

•Difficulty getting a fire going and keeping it burning well,

•Smoky fires with little flame,

•Dirty glass,

•Dirty firebricks,

•Short life span for grate, baffles and internal firebricks,

•Permanent staining of glass.

10.3Backpuffing

This is caused by a lack of combustion air entering the firebox causing combustion gases to build up in the firebox and periodically ignite as small explosions, causing smoke to puff out of the appliance air inlets and other openings. The problem will often occur if the air controls are shut soon after adding new fuel to a very hot fire. To stop backpuffing occurring open the air controls to increase the combustion air and increase the burning rate.

10.4Flue Draught

The chimney has two main functions, which are, to safely remove the smoke, gases and fumes from the house, and to provide a sufficient amount of draught (suction) in the Huntingdon stove to ensure that the fire is kept burning.

Draught is caused by the rising hot air in the chimney when the Huntingdon stove is lit.