Ethos 550 (Discontinued)

Discontinued Products

Ethos 550 (Discontinued)

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.

Key Features

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

Resources & Downloads

ETHOS Brochure

ETHOS 350 / 550 Operation & Maintenance Manual

ETHOS 550 Technical Submittal

ETHOS 550 CAD File .dwg

ETHOS 550 BIM File .rfa

Technical Specification

Product Code	FSB320550
General
Dimensions (Height x Width x Depth)	1300 mm x 750 mm x 1500 mm
Water Content of appliance	30 litres
Weight - empty	370 kg
Connections
Connections - flow / return	DN65 PN16 Flange
Connection - gas	1½ ” BSP
Connection - flue	180 mm
Electrical
Power supply (Vac/Ph/Hz)	230 V a.c. / 1 / 50 Hz
Power consumption	898 W
Fuse protection	10 Amp
Maximum Fan Speed	9200 RPM
Minimum Fan Speed	1950 RPM
Heating Performance
Nominal heat input (nett)	27.5 - 550.0 kW
Nominal heat output at 80/60°C	27.0 - 539.0 kW
Nominal heat output at 50/30°C	29.7 - 594.0 kW
Maximum gas consumption (G20)	56.1 m³/hr
Maximum gas consumption (G25)	62.1 m³/hr
Maximum gas consumption (G31)	20.9 m³/hr
Technical Data
Flue gas dew point	52 °C
Flue temperature at 80/60°C (at ambient temperature of 20°C)	75 °C
Flue material temperature class	T 120
Permitted maximum resistance of flue system	250 Pa
Condensation pH value	3.0 - 5.5
Maximum CH flow temperature	90 °C
CH water pressure (min - max)	0.5 - 6.0 bar
Minimum / maximum gas pressure (G20)	17 - 20 mbar
Minimum / maximum gas pressure (G25)	17 - 20 mbar
Minimum / maximum gas pressure (G31)	30 - 50 mbar
Environmental Data
NOx levels	31.0 mg/kW
Maximum efficiency (nett non condensing)	98.3 %
Maximum efficiency (nett condensing)	108.6 %
Seasonal efficiency	95.6 %

Compare Models

Description	Part Number
Ethos 350 (Discontinued)		FSB320350
Ethos 550 (Discontinued)		FSB320550
Ethos RS 350 (Discontinued)		FSB330350
Ethos RS 550 (Discontinued)		FSB330550

Discontinued Products