Melbury HE pressure jet boiler
Melbury HE pressure jet boilers installed for college heating

High efficiency steel shell power flame boiler.

Available in the following kW outputs (at 80/60°C): 530, 580, 630, 700, 800, 895, 1150, 1300, 1650, 1900, 2500, 3000, 3800, 4500, 5400, 6300, 7400, 8600 and 10,000kW.

Efficiency 84 product icon
Fuel NG oil biofuel dualfuel product icon
Turndown 4 product icon
Warranty 2 product item

Product information

    • Achieve close load matching from the 19 model range, saving on running costs.
    • Gain fuel savings from high efficiency performance.
    • No minimum water flow eliminates the need for a shunt pump, simplifying the hydraulic system design and reducing energy consumption.
    • Choice of fuel includes liquid biofuel for renewable energy solutions.
    • Low NOx burners further improve the environmental credentials of the boiler.
    • Large hinged door allows for easy access to maintain and service.
    • 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.

Technical data

Units MHE530
Energy
Seasonal Efficiency DIN4702-8 at 75/60°C (Nat gas) (%) gross 85.14
Seasonal Efficiency DIN4702-8 at 75/60°C (Oil) (%) gross 84.96
Building Regulations (L2 seasonal Efficiency) at 80/60°C (Nat gas) (%) gross 84.91
Building Regulations (L2 seasonal Efficiency) at 80/60°C (Oil) (%) gross 85.00
Boiler output at 80/60°C - max kW 530
Boiler output at 80/60°C - min (Nat gas) kW 95
Boiler output at 80/60°C - min (Oil) kW 211
Equivalent MCPD Output (emission compliance) - new installation (Nat gas) kW N/A
Boiler input (gross) - max (Nat gas) kW 643.5
Boiler input (gross) - max (Oil) kW 642.4
Boiler input net - max (Nat gas) kW 585
Boiler input net - max (Oil) kW 584
Boiler input net - min (Nat gas) kW 99
Water
Water content litres 565
System design flow rate at 20°C ΔT rise l/s 6.34
Waterside pressure loss at 20°C ΔT rise mbar 11
System design flow rate at 15°C ΔT rise l/s 12.68
Waterside pressure loss at 15°C ΔT rise mbar
System design flow rate at 10°C ΔT rise l/s
Waterside pressure loss at 10°C ΔT rise mbar 42
Water flow rate - min l/s No min flow rate
Water pressure operating - max barg 6
Water pressure - min barg 0.55
Water flow temperature - max °C 95
Water flow temperature - min °C 70°C Nat Gas / 70°C Propane/ 60°C Oil
Water return temperature - min °C 60°C Nat Gas /60°C Propane/ 50°C Oil
Fuel
Flow rate for natural gas - max (Nat gas) nm3/h 61.5
Fuel oil Flow - max (Oil) kg/h 49.3
Flow rate for natural gas - min nm3/h 10
Fuel oil Flow - min (Oil) kg/h 18.8
Gas inlet pressure natural gas (G20) mbar Data on application
Flue
Flue gas volume at 20°C, 10% CO2, max EN303-3 (Nat gas) kg/s 0.24
Flue gas volume at 20°C, 10% CO2, max EN303-4 (Oil) kg/s 0.25
Flue gas volume at 20°C,10% CO2, min EN303-3 (Nat gas) kg/s 0.04
Flue gas volume at 20°C,10% CO2, min EN303-4 (Oil) kg/s 0.10
Flue gas temperature at 80/60°C - max (Nat gas) °C 209
Flue gas temperature at 80/60°C - max (Oil) °C 208
Flue gas temperature at 80/60°C - min (Nat gas) °C 95
Flue gas temperature at 80/60°C - min (Oil) °C 120
Exhaust gas losses at 80/60°C - max (Nat gas) % 9.1
Exhaust gas losses at 80/60°C - max (Oil) % 9.0
Standby loss @ 70°C W 781
Combustion chamber resistance mbar 5.97
Connections
Water flow connection PN6 DN100
Water return connection PN6 DN100
Gas inlet connection Rc2"
Safety valve connection PN16 n/a
Drain connection R1 1/4"
Flue diameter (O/D) - Nominal mm 200
Flue hood drain connection R3/4"
Electrical supply for boiler 230V 1Ph 50Hz
Electrical supply for burner 400V 3Ph 50Hz
Shipping weight (excluding burner) - Approx. kg 1486

Downloads

Melbury HE 3800-10000 Installation Manual

Installers guides 1455 kb

Melbury HE-C 530 - 3000 Installation manual

Installers guides 2731 kb

Ideal uses/applications

Optional extras

Often bought with

Arne flue gas economiser

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Powerstock glass lined calorifier

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Case studies

One of the largest further-education establishments in the UK sourced its boilers locally for a refurbishment project across two main campuses.

Bournemouth and Poole College

Sector: Education

Project: One of the largest further-education establishments in the UK sourced its boilers locally for a refurbishment project across two main campuses.

Building: College refurbishment

Application: Space heating 3,170kW; indirect fired DHW

Learn more