
© EUROHEAT DISTRIBUTORS (H.B.S) LTD July 2012
E & OE Instructions Part number IN1115 Edition G7
4
Technical Details Intermittent Operation
Intermittent operation is when the appliance is used for short firing periods for example 45 minutes to 2 hours.
This is a common operation in warmer weather such as cold spring evenings. The information provided below
where indicated as HETAS approved is from the current CE standards EN 13240:2001 and EN 13240 A2:2004. The
test fuel for wood burning, Beech, for Coal burning Anthracite.
Model Name
Model
Number
Heat Output
Nominal
Wood
Heat Output
Nominal
Coal*
Weight
KG
Flue
Draught
Nominal
Flue Gas
Mass
Flow g/s
Flue Gas
Temperature
Down Stream
of Flue Spigot
deg C
Efficiency
with
Top Flue
Connection
Harmony 13 Wood
H13*
5.0kW
96
12pa
4.9
350
77.1% Net
70.2% Gross
Harmony 13 Coal
H13*
3.5kW
96
12pa
3.8
210
82.8% Net
75.4% Gross
Harmony 23
H23*
7.7kW
7.7kW
124
12pa
7.7
326
See smoke
control
exempted
table
Harmony 33
H33
**
9.2kW
9.2kW
143
12pa
6.5
305
Harmony 43
H43*
10.5
10.5kW
186
12pa
6.5
357
Stanford 13 Wood
S13*
5.0kW
96
12pa
4.9
350
77.1% Net
70.2% Gross
Stanford 13 Coal
S13*
3.5kW
96
12pa
3.8
210
82.8% Net
75.4% Gross
Stanford 23
S23*
7.7kW
7.7kW
124
12pa
7.7
326
See smoke
control
exempted
table
Stanford SP23 HP
SP23 HP*
7.7kW
7.7kW
132
12pa
7.7
326
Stanford 33
S33
**
9.2Kw
9.2kW
146
12pa
6.5
305
Stanford SP33 HP
SP33 HP
**
9.2kW
9.2kW
153
12pa
6.5
305
* HETAS Approved ** Awaiting HETAS Approval
Model Name
Model
Number
Heat Output
Nominal
Wood
Heat Output
Nominal
Coal*
Weight
KG
Flue
Draught
Nominal
Flue Gas
Mass
Flow g/s
Flue Gas
Temperature
Down Stream
of Flue Spigot
deg C
Efficiency
with
Top Flue
Connection
Harmony 13 Wood*
H13
5.4kW
96
12pa
4.9
350
83.4% Net
75.9% Gross
Harmony 13 Coal*
H13
3.5kW
96
12pa
3.8
210
78.3% Net
71.2% Gross
Stanford 13 Wood*
S13
5.4kW
96
12pa
4.9
350
83.4% Net
75.9% Gross
Stanford 13 Coal*
S13
3.5kW
96
12pa
3.8
210
78.3% Net
71.2% Gross
* HETAS Approved
Technical Details Continuous Operation
Continuous operation is when the appliance is used for long firing periods for example several hours and for
overnight operation. This is a common operation in cold weather as experienced in deep winter. The information
provided below is from the current CE standards EN 13240:2001 and EN 13240 A2:2004. The test fuel for wood
burning, Beech, for Coal burning Anthracite.