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CONTENTS 
 
 
HEALTH AND SAFETY 
PARTS LIST 
EXPLODED DIAGRAM 
INSTALLATION 
OPERATING INSTRUCTIONS 
GENERAL MAINTENANCE 
TROUBLE SHOOTING 
INSTALLATION DIAGRAMS 
TEST RESULTS 
 
 
The Clean Air Act 1993 and Smoke Control Areas
 
Under the Clean Air Act local authorities may declare the whole or part of the district of the authority to be a 
smoke control area. It is an offence to emit smoke from a chimney of a building, from a furnace or from any 
fixed boiler if located in a designated smoke control area. It is also an offence to acquire an "unauthorised 
 
fuel" for use within a smoke control area unless it is used in an "exempt" appliance ("exempted" from the 
controls which generally apply in the smoke control area). 
 
The Secretary of State for Environment, Food and Rural Affairs has powers under the Act to authorise 
 
smokeless fuels or exempt appliances for use in smoke control areas in England. In Scotland and Wales this 
power rests with Ministers in the devolved administrations for those countries. Separate legislation, the 
Clean Air (Northern Ireland) Order 1981, applies in Northern Ireland. Therefore it is a requirement that fuels 
 
burnt or obtained for use in smoke control areas have been "authorised" in Regulations and that appliances 
used to burn solid fuel in those areas (other than "authorised" fuels) have been exempted by an Order made 
 
and signed by the Secretary of State or Minister in the devolved administrations. 
 
Further information on the requirements of the Clean Air Act can be found here : 
http://smokecontrol.defra.gov.uk/ 
 
Your local authority is responsible for implementing the Clean Air Act 1993 including designation and 
Recorded Test Results
supervision of smoke control areas and you can contact them for details of Clean Air Act requirements" 
 
The Imperial, Essence, Principal and Qadrical stoves have been recommended as
control areas when burning dry wood and anthracite
air control closure beyond the 50% open position. 
12,13,14&15 
 
suitable for use in
 
and fitted with a mechanical stop to prevent secondary 
Flue Gas Temp
at Spigot
PAGE 
o
402
c
As tested to the requirements of EN13240 for intermittent use
4&5 
6,7,8&9 
Fuel
9&10 
Anthracite
11 
Wood Logs (below
20% moisture)
Coal (E)
16&17 
Peat (E)
 
Closed Fire
Briquettes
Outputs stated are under ideal test conditions. Variations will occur due to installation, atmospheric
conditions and fuel quality
(E) - estimate calculated
Essential characteristics
Test Fuel
Fire Safety
Emission of combustion
products related to 13% O
Surface Temperature
Thermal output
Efficiency
Release of dangerous
substances
STOVE
ESSENCE
QADRICAL
IMPERIAL
PRINCIPAL
 
*all measurements in mm
 
 
smoke 
Weight: Essence 81Kg Imperial/Principal/Qadrical (body only) 75Kg
Max Fuel Load: 5.33Kg (Anthracite)
Flue Draught: Min.12Pa, Max. 25Pa
Please refer to BS EN 15287-1:2007 Installation and commissioning of chimneys
Flue
Gas
Flue Diameter
Mass
Flow
3.9g/s
House built
(wood)
125mm
before 2008
9.7g/s
House built
(ancit)
5 inches
after 2008
Output
Please note that HETAS Ltd Appliance Approval
Cycle (hours)
(kW)
only covers the use of Manufactured and Natural
4.5
1.14
Smokeless fuels and Wood Logs on this appliance.
HETAS Ltd Approval does not cover the use of
4.9
0.75
other fuels either alone or mixed with the
4.3
4
recommended fuels listed, nor does it cover
4.7
2
instructions for the use of other fuels.
4.6
4
Performance
Beech
Anthracite
Pass
Pass
CO:0.11 vol%
CO: 0.17
3
Dust: 73mg/m
o
vol%
3
No
: 98 mg/m
2
x
o
Dust: 86
C
H
:
x
y
3
mg/m
3
0
183mg/m
o
Pass
Pass
4.9kW
4.5kW
78.10%
73.40%
Pass
Pass
A
B
405
542
423
492
420
541
423
492
17
Ventilation
Ventilation
Required
Required With
Without Draught
Draught
Stabiliser
Stabiliser
2
None
1500mm
2
2
2750mm
4250mm
 
C
D
E
F
G
195
125
101
425
359
194
125
100
372
347
194
125
100
420
354
194
125
100
372
347
 
 

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