Ethos 350-550KW

 

Ethos 350-550KW floor standing boiler

Designed and manufactured in the UK the Ethos stainless steel “twin burner” boilers have been developed to meet the requirements of today’s commercial buildings. With an unsurpassed premix burner modulation of 20 > 1 and output capability from 17.5kW >  3.3mW, the Ethos FS range ensures your building load is accurately matched whatever the season. As with the wall mounted boilers the FS range also have onboard boiler cascade control.           

 

Features

Benefits

Available in 350 and 550kW models Installation options allowing 17.5kW > 3.3mW
2 premix burners per boiler  Nox levels of 31mg/kw
Stainless  steel heat exchanger 5 year heat exchanger warranty
20 > 1  burner modulation Seasonal efficiency in excess of 95%
Onboard boiler cascade control < 75 dba

"Unsurpassed modulation of 20 > 1"

 

 

 
 
 
General
 
Model Ethos 350 Ethos 550
 
Dimensions (Height x Width x Depth) mm 1200 x 750 x 1100 1300 x 750 x 1500
Water Content of Appliance litre 25 30
Weight (Empty) kg 400 450
Flow / Return Connections BSP DN50 PN16 Flange DN65 PN16 Flange
Gas Connection BSP 1¼” 1½”
Flue Connection mm 150 180
Power Consumption W 520 910
Electrical Supply V 230 230
Frequency Hz 50 50
Fuse Protection A 10 10
Maximum Fan Speed RPM 6100 9200
Minimum Fan Speed RPM 1300 1950
 
HEATING PERFORMANCE
       
Nominal Heat Input (Nett) kW 17.5 - 350.0 27.5 - 550.0
Nominal Heat Output at 80/60°C kW 17.2 - 343.0 27.0 - 539.0
Nominal Heat Output at 50/30°C kW 18.9 - 378.0 29.7 - 594.0
G20 Maximum Gas Consumption m3/h3 34.8 53.4
G25
m3/hr 40.4 62.1
G31
mr/h3 13.6 20.9
 
TECHNICAL DATA
 
Flue Gas Dew Point °C 52 52
Flue Temperature at 80/60°C (at ambient temperature of 20°C) °C 75 75
Flue Material Temperature Class T 120 T 120
Permitted Maximum Resistance of Flue System Pa 200 250
Condensation pH Value 3.0 - 4.0 3.0 - 4.0
Maximum CH Flow Temperature °C 90 90
CH Water Pressure (Minimum / Maximum) Bar 0.5 - 6.0 0.5 - 6.0
G20 Minimum / Maximum Gas Pressure mbar 17 - 20 17 - 20
G25
mbar 17 - 20 17 - 20
G31
mbar 30 - 50 30 - 50
 
ENVIRONMENTAL DATA
 
NOX Levels mg/kW 31.0 31.0
Maximum Efficiency (Nett Non-Condensing) % 98.0 98.0
Maximum Efficiency (Nett Condensing) % 108.0 108.0
Seasonal Efficiency % 95.6 95.6

 

 

Type Ethos 350 Etho 550
mm
A
1200 1500
mm
B
420 420
mm
C
865 865
mm
D
730 730
mm
E
100 100
mm
F
400 400
mm
G
100 100
mm
H
180 180
mm
I
700 700
mm
J
1070 1070
K 2" 1 1/2"
L 1 1/4" 2 1/2"
M 1" 1"
mm
N
20 20
mm
O
150 180

 

key Connection type
1 Flow connection
2 Return Connection
3 Gas Connection
4 Flue Gas Connection
5 Condensate Connection
6 Saftey Valve Connection
 

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