Vanguard L

Vanguard L boilers are designed with a large combustion chamber positioned in the lower part of the heat exchanger, ensuring maximum heat transfer efficiency (up to 92.5% nett).

With an increased number of flue ways positioned in the hottest area of the heat exchanger and constructed from thicker steel, the Vanguard L range is capable of an impressive output to size ratio.

This boiler range is suitable for combined indirect pumped domestic hot water and central heating systems, independent indirect pumped domestic hot water or central heating systems.

Fully pumped systems may be open vented or sealed.

Efficiency

Features

18 models with outputs 130 to 3500 kW
Fuel flexibility – Natural gas, oil or dual fuel
High efficiency 91% net (82% gross)
3 pass heat exchanger
Compact size

Comprehensive control
6 bar pressure standard
Ease of service and maintenance
Stylish appearance

Specification

General Data (130-870 kW)
General Data (970-3500 kW)

Model		170	240	290	340	420	510	630	760	870
Output	kW	170	240	290	340	420	510	630	760	870
Height	mm	1272	1272	1372	1372	1542	1542	1542	1622	1622
Width	mm	820	820	860	860	890	890	890	1122	1122
Depth	mm	1214	1474	1411	1541	1606	1801	2113	1989	2184
Flow/Return Connections	DN flange	65	65	80	80	100	100	100	125	125
Flue Size	mm	200	200	250	250	250	250	250	350	350
Maximum Working Pressure	bar	6
Water Content	L	190	251	264	298	398	462	565	671	753
Dry Weight (Approx)	kg	435	510	588	629	769	919	1047	1341	1447
Boiler Clearances (mm)	Front	Same as boiler length
	Back	500
	Side (non hinge)	100
	Right	200 + burner length
Seasonal Efficiency	(gas) %	83.04	82.98	83.02	83.03	83.09	83.02	83.22	83.40	83.34
Seasonal Efficiency	(oil) %	86.40	86.30	86.30	86.40	86.40	86.30	86.50	86.70	86.70

Model		970	1100	1320	1570	1850	2200	2650	3000	3500
Output	kW	970	1100	1320	1570	1850	2200	2650	3000	3500
Height	mm	1622	1622	1622	1732	1732	1892	1892	2080	2340
Width	mm	1122	1352	1352	1462	1462	1622	1622	1670	1920
Depth	mm	2379	2346	2686	2781	3151	3225	3545	3835	3879
Flow/Return Connections	DN flange	125	150	150	175	175	200	200	200	200
Flue Size	mm	350	400	400	450	450	520	520	570	620
Maximum Working Pressure	bar	6
Water Content	L	836	1040	1242	1418	1617	2086	2324	2553	4862
Dry Weight (Approx)	kg	1553	1821	2030	2780	3280	4145	4465	5110	6700
Boiler Clearances (mm)	Front	Same as boiler length
	Back	500
	Side (non hinge)	100
	Right	200 + burner length
Seasonal Efficiency	(gas) %	83.42	83.56	83.40	83.47	83.47	83.73	83.82	83.02	83.15
Seasonal Efficiency	(oil) %	86.80	86.90	86.70	86.80	86.80	87.10	86.20	86.30	86.50