Keston HEAT 2 45 Installation & Servicing page 3

KESTON HEAT2 BOILER
Keston Heating
ERP DATA
Condensing boiler
Seasonal Space heating efficiency class
Rated heat output
Seasonal space heating energy efficiency
Annual energy consumption
Sound power level, indoors
Seasonal Space Heating Energy Efficiency of the Boiler
Temperature control (from fiche of temperature control)
Class I Class II
1% 2%
Solar Contribution (from fiche of solar device)
Collector Size
(in m 2 )
= ('III 'x + 'IV ' x
Seasonal Space Heating Energy Efficiency of Package
Seasonal Space Heating Energy Efficiency Class of Package
G G F
≥ 30%
< 30%
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
Installation & Servicing
PRODUCT FICHE
SYMBOL
Class III Class IV Class V
1.5% 2% 3%
Tank Volume
(in m 3 )
) x 0.9 x (
E D C
≥ 34% ≥ 36% ≥ 75%
UNITS
45
kW 45
ƞ
% 93*
son
Q GJ 139
HE
L dB 60.6
WA
Class VI Class VII
4% 3.5%
Collector Tank rating
Efficiency
A* = 0.95
(in %) A = 0.91
B = 0.86
C = 0.83
D-G = 0.81
/ 100 x
TOTAL: A+B+C=
B A
≥ 82% ≥ 90% ≥ 98%
MODEL
45P 55
Yes
A
45 55
93* 93*
137 170
60.6 64.2
*%
%
Class VIII
5%
%
=
%
A+ A++
A+++
≥ 125% ≥ 150%
55P
55
93*
167
64.2
A
B
C
3