Melbury C steel shell condensing pressure jet boiler

High outputs and high efficiency performance from this condensing steel shell boiler.
Available in the following outputs (at 80/60°C): 580, 630, 700, 800, 895, 1150, 1300, 1650, 1900, 2500 and 3000kW.

Product information

Lower running costs with condensing efficiency up to 97% gross.
Choice of fuel includes liquid biofuel for renewable energy solutions.
Low NOx burners further improve the environmental credentials of the boiler.
Manufactured from high quality steel means it’s built to last.
Buy in confidence from a UK manufacturer with decades of commercial heating and hot water expertise.
Suitable for commercial and industrial applications with high heating and hot water energy demands.
Extensive back up and support from our team of experienced engineers across the UK.
Long term commitment to spare parts.
Installations using models over 1MW thermal input need to comply with the Medium Combustion Plant Directive - please contact us for more information.

New build projects.
Housing developments and flats using district heating networks.
Large commercial and public buildings including schools, hospitals, offices and hotels.
Medium sized commercial and public buildings including schools, hospitals, offices and hotels.
An environmentally friendly alternative to oil for rural locations without access to mains gas supply.
Locations with substantial and continuous heating loads including hospitals, care homes and hotels.

Choose from a wide range of service contracts to help maintain optimum performance.
Book commissioning at the same time as placing your order for improved warranty terms.
Flues available

Primary heat exchanger - Energy

	Unit	MC530	MC580	MC630	MC700	MC800	MC895	MC1150	MC1300	MC1650	MC1900	MC2500	MC3000
Building regulation seasonal efficiency gross	%	95.03	95.11	95.13	95.18	95.17	95.24	95.24	95.22	95.21	95.31	95.33	95.28
Boiler output 80/60°C	kW	530	580	630	700	800	895	1150	1300	1650	1900	2500	3000
Equivalent MCPD Output (emission compliance) - new installation	kW	N/A	N/A	N/A	N/A	N/A	932	1222	1223	1566	1864	2368	2972
Boiler input (gross) max	kW	645	697	762	838	966	1068	1377	1570	2004	2294	3009	3643
Boiler input (net) max	kW	581	628	686	755	870	962	1240	1414	1805	2067	2711	3282
Boiler output min 80/60°C	kW	95	121	121	175	175	269	311	314	367	459	713	714

Primary heat exchanger - Water

	Unit	MC530	MC580	MC630	MC700	MC800	MC895	MC1150	MC1300	MC1650	MC1900	MC2500	MC3000
Design flow rate @20°C ΔT rise	l/s	6.3	6.9	7.5	8.4	9.6	10.7	13.8	15.6	19.7	22.7	29.9	35.9
Water side pressure loss @20°C ΔT rise	mbar	11	13	15	18	24	30	20	26	42	27	46	21
Design flow rate @10°C ΔT rise	l/s	12.7	13.9	15.1	16.7	19.1	21.4	27.5	31.1	39.5	45.4	59.8	71.8
Water side pressure loss @10°C ΔT rise	mbar	42	50	59	73	96	120	81	103	167	106	184	84
Water flow rate - min	l/s	No min flow rate	No min flow rate	No min flow rate	No min flow rate	No min flow rate	No min flow rate	No min flow rate	No min flow rate	No min flow rate	No min flow rate	No min flow rate	No min flow rate
Operating water pressure - max (min)	barg	6 (0.55)	6 (0.55)	6 (0.65)	6 (0.5)	6 (0.7)	6 (0.75)	6 (0.85)	6 (1.1)	6 (1.25)	6 (1.3)	6 (1.6)	6 (1.7)
Operating water temperature - max	°C	95	95	95	95	95	95	95	95	95	95	95	95
Water return temperature - min	°C	60	60	60	60	60	60	60	60	60	60	60	60

Primary heat exchanger - Gas

	Unit	MC530	MC580	MC630	MC700	MC800	MC895	MC1150	MC1300	MC1650	MC1900	MC2500	MC3000
Gas flow rate natural gas (G20) - max	m3/h	61.5	66.5	72.6	79.9	92.1	101.8	131.3	149.7	191	218.8	286.9	347.3
Gas inlet pressure natural gas (G20) - nominal/max	mbar	Data on application	Data on application	Data on application	Data on application	Data on application	Data on application	Data on application	Data on application	Data on application	Data on application	Data on application	Data on application

Primary heat exchanger - Flue

	Unit	MC530	MC580	MC630	MC700	MC800	MC895	MC1150	MC1300	MC1650	MC1900	MC2500	MC3000
Approx. flue gas volume @15°C, 9% CO2 N.T.P	m3/h	738	799	892	984	1137	1230	1599	1814	2336	2675	3505	4243
Flue gas temperature @80/60°C	°C	209	187	197	179	196	172	179	194	205	195	188	205
Nox emission*	mg/kWh	80-100	80-100	80-100	80-100	80-100	80-100	80-100	80-100	80-100	80-100	80-100	80-100
Combustion chamber resistance	mbar	5.97	4.22	5.06	5.03	6.74	5.33	6.41	8.39	9.67	9.43	10.35	9.5

Secondary heat exchanger - Energy

	Unit	MC530	MC580	MC630	MC700	MC800	MC895	MC1150	MC1300	MC1650	MC1900	MC2500	MC3000
Energy output @35/30 - max (min)	kW	67 (12)	72 (15)	79 (15)	87 (22)	101 (22)	110 (33)	143 (38)	163 (39)	208 (45)	239 (57)	313 (90)	378 (109)
Standby loss @70°C	W	824	926	926	1073	1073	1239	1447	1447	1645	1831	2166	2427

Secondary heat exchanger - Water

	Unit	MC530	MC580	MC630	MC700	MC800	MC895	MC1150	MC1300	MC1650	MC1900	MC2500	MC3000
Design flow rate @10°C ΔT rise	l/s	1.6	1.72	1.89	2.08	2.42	2.63	3.42	3.9	4.98	5.72	7.49	9.04
Water side pressure loss @10°C ΔT rise	mbar	13	22	27	22	29	25	30	39	41	37	40	42
Design flow rate @5°C ΔT rise	l/s	3.21	3.45	3.78	4.16	4.83	5.26	6.81	7.75	9.91	11.4	14.9	18
Water side pressure loss @5°C ΔT rise	mbar	53	89	107	89	117	100	40	54	64	52	53	66
Water flow rate - max (min)	barg	0.47 (3.21)	0.47 (3.45)	0.56 (3.78)	0.56 (4.16)	0.69 (4.83)	0.75 (5.26)	0.89 (6.84)	1.11 (7.8)	1.53 (9.95)	1.67 (11.4)	2.08 (15)	2.69 (18.1)
Condensate flow rate - max	l/h	38	48	49	61	64	81	98	102	124	151	199	242

Secondary heat exchanger - Flue

	Unit	MC530	MC580	MC630	MC700	MC800	MC895	MC1150	MC1300	MC1650	MC1900	MC2500	MC3000
lue gas temperature @35/30°C	°C	33	33	32	33	49	47	47	49	50	49	48	50
Flue gas losses @35/30°C	%	1.5	1.4	1.4	1.3	1.5	1.4	1.5	1.6	1.6	1.6	1.6	1.6
Combustion path resistance	mbar	2.81	1.32	1.6	1.89	2.57	1.44	1.29	1.71	2.83	2.13	2.25	2.2

Misc

	Unit	MC530	MC580	MC630	MC700	MC800	MC895	MC1150	MC1300	MC1650	MC1900	MC2500	MC3000
Nominal supply voltage - for boiler		230V 1Ph 50Hz	230V 1Ph 50Hz	230V 1Ph 50Hz	230V 1Ph 50Hz	230V 1Ph 50Hz	230V 1Ph 50Hz	230V 1Ph 50Hz	230V 1Ph 50Hz	230V 1Ph 50Hz	230V 1Ph 50Hz	230V 1Ph 50Hz	230V 1Ph 50Hz
Approx. shipping weight - excluding burner	kg	1450	1800	1800	2160	2160	2420	2950	2950	3508	4133	5169	5892

*(0% excess O2, dry air free) European Class 5