Seasonal space heating energy efficiency of boiler
1
%
Temperature control
From fiche of temperature
control
Supplementary boiler
From fiche of boiler
Supplementary heat pump
From fiche of heat pump
Solar contribution AND Supplementary heat pump
Select smaller value
Boiler and supplementary heat pump installed with low temperature heat emitters at 35°C?
From fiche of heat pump
The energy efficiency of the package of products provided for in this fiche 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 distribution system and the dimensioning of the products in relation to building
size and characteristics.
Seasonal space heating energy efficiency of package
Seasonal space heating energy efficiency class of package
Solar contribution
From fiche of solar device
Class I = 1 %, Class II = 2 %,
Class III = 1.5 %, Class IV = 2 %,
Class V = 3 %, Class VI = 4 %,
Class VII = 3.5 %, Class VIII = 5 %
2
%
+
3
%
±
Seasonal space heating energy afficiency
(in %)
( - ‘I’ ) x 0,1 =
( - ‘I’ ) x ‘II’ =
0.5 x O 0.5 x =
+ ( 50 x ‘II’ ) =
4
5
6
7
4
5
%
%
%
%
+
+
-
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
( ‘III’ x + ‘IV’ x ) x (0.9 x ( / 100) x =
Seasonal space heating energy afficiency
(in %)
G
F
E
D
C
B
A
A
+++
A
++
A
+
< 30 %
≥ 30 % ≥ 34 % ≥ 36 % ≥ 75 % ≥ 82 % ≥ 90 % ≥ 98 % ≥ 125 %≥ 150 %
%
7
‘I’
12.3 FACSIMILE FOR FILLING IN ROOM HEATING SYSTEM ASSEMBLY CHART
Alpha E-Tec Plus 28 and 33 - Energy Classification
53
