KESTON COMBI²
Ideal Heating
ERP DATA
Seasonal Space Heating Energy Efficiency of the Boiler
*%
Temperature control (from fiche of temperature control)
%
Class I
Class II
Class III
Class IV
Class V
Class VI
Class VII
Class VIII
1%
2%
1.5%
2%
3%
4%
3.5%
5%
PRODUCT FICHE
*The energy efficiency of the package of products provided for in this document may not correspond to its actual energy efficiency once installed
in a building, as the efficiency is influenced by further factors such as heat loss in the products in relation to the building size and its characteristics
Collector Size
(in m
2
)
Tank Volume
(in m
3
)
Collector
Efficiency
(in %)
Tank rating
A* = 0.95
A = 0.91
B = 0.86
C = 0.83
D-G = 0.81
Solar Contribution (from fiche of solar device)
Seasonal Space Heating Energy Efficiency of Package
TOTAL: A+B+C=
Seasonal Space Heating Energy Efficiency Class of Package
= (‘
III
’x
+ ‘
IV
’ x
) x 0.9 x (
/ 100 x
) =
%
%
G
G
F
E
D
C
B
A
A+
A++
A+++
< 30%
≥ 30%
≥ 34%
≥ 36%
≥ 75%
≥ 82%
≥ 90%
≥ 98%
≥ 125%
≥ 150%
A
B
C
MODEL
SYMBOL
UNITS
30 kW
35 kW
Condensing Boiler
n/a
n/a
yes
yes
Low Temperature Boiler
n/a
n/a
no
no
B1 Boiler
n/a
n/a
no
no
Cogeneration Space Heater
n/a
n/a
no
no
Equipped with a Supplementary Heater
n/a
n/a
no
no
Combination Heater
n/a
n/a
yes
yes
Nominal Heat Output for Space Heating
Full Load
P4
kW
24.3
24.3
Part Load
P1
kW
8
8
Auxiliary Electricity Consumption
Full Load
elmax
kW
0.028
0.028
Part Load
elmin
kW
0.009
0.026
Standby
PSB
kW
0.003
0.002
Seasonal Space Heating Energy Efficiency
Full Load
ƞ4
%
90
90
Part Load
ƞ1
%
98.6
98.6
Standby Loss
Pstby
kW
0.05
0.05
Ignition
Pign
kW
0
0
Emissions NOx (Gross)
NOx, pond Hs
mg/kWh
25
30
Annual Energy Consumption
QHE
GJ
75
75
Sound Power Level, Indoors
LWA
dB
46
46
Domestic Hot Water
Domestic Hot Water
Qelec
kWh
0.133
0.137
Water heating energy efficiency (Eco) Tapping Profile L
ƞWH
%
81
79
Daily fuel consumption 24hr (GCV) Actual measured
Qfuel
kWh
14.84
15.14
Annual electricity consumption
AEC
kWh
28
29
Annual fuel consumption
AFC
GJ
11
11
SYMBOL
UNITS
MODEL
30 kW
35 kW
Condensing boiler
Yes
Seasonal space heating efficiency class
A
Rated heat output
kW
24
Seasonal space heating energy efficiency
ƞs
%
94*
Annual energy consumption
Q
HE
GJ
75
Sound power level, indoors
L
WA
dB
46
46
Water heating energy efficiency class
A
94%
3
Installation and Servicing
