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
  • 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.
  Boiler Model Units MHE530 MHE580 MHE630 MHE700 MHE800 MHE895 MHE1150 MHE1300 MHE1650 MHE1900 MHE2500 MHE3000 MHE3800 MHE4500 MHE5400 MHE6300 MHE7400 MHE8600 MHE10000
Energy Building Regulations seasonal
efficiency
(%) gross 84.99 85.34 85.16 85.63 85.33 85.82 85.53 85.42 85.26 85.49 85.76 85.33 85.42 85.55 85.67 85.63 85.65 85.77 85.99
Boiler output at 80/60°C kW
Btu/h x 1000
530
1808
580
1979
630
2150
700
2388
800
2730
895
3054
1150
3954
1300
4436
1650
5630
1900
6483
2500
8530
3000
102360
3800
12966
4500
15354
5400
18425
6300
21496
7400
25249
8600
29343
10000
34120
Boiler input (gross) - Maximum kW
Btu/h x 1000
645
2201
697
2379
762
2599
838
2859
966
3296
1068
3644
1377
4697
1570
5357
2004
6836
2294
7829
3009
10267
3643
12429
4594
15675
5440
18562
6507
22202
7575
25846
8888
30325
10296
35128
11920
40671
Boiler input (nett) - Maximum kW
Btu/h x 1000
581
1983
628
2144
686
2341
755
2576
870
2970
962
3283
1240
4232
1414
4826
1805
6159
2067
7054
2711
9251
3282
11199
4139
14123
4902
16724
5863
20004
6825
23287
8008
27323
9276
31651
10740
36644
Boiler output at 80/60°C
for natural gas - Minimum
kW
Btu/h x 1000
95
324
121
413
121
413
175
597
175
597
269
918
311
1061
314
1071
367
1252
459
1566
713
2433
714
2436
880
3003
1160
3958
1473
5026
1582
5398
1935
6602
2332
7957
2907
9919
Boiler output at 80/60°C
for oil - Minimum
kW
Btu/h x 1000
211
720
272
928
272
928
355
1211
355
1211
494
1685
582
1986
582
1986
680
2320
847
2890
1217
4152
1272
4340
2012
6865
2518
8591
2930
9997
3442
11744
3442
11744
4163
14204
5127
17493
Water Water content litres 530 650 650 790 790 960 1360 1360 1760 2060 2610 3070 3805 5385 6060 9300 11400 13300 15120
System design flow rate at 20°C ΔT rise l/s 6.34 6.94 7.54 8.37 9.57 10.71 13.76 15.55 19.74 22.73 29.90 35.89 45.45 53.83 64.59 75.36 88.52 102.87 119.62
Waterside pressure loss at 20°C ΔT rise mbar 11 13 15 18 24 30 20 26 42 27 46 21 44 62 89 47 65 45 61
System design flow rate at 10°C ΔT rise l/s 12.68 13.88 15.07 16.74 19.14 21.41 27.51 31.10 39.47 45.45 59.81 71.77 90.91 107.66 129.19 150.72 177.03 205.74 239.23
Waterside pressure loss at 10°C ΔT rise mbar 42 50 59 73 96 120 81 103 167 106 184 84 176 248 356 188 260 180 244
Water flow rate - Minimum l/s No minimum flow rate
Water pressure - Maximum barg 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6
Water pressure - Minimum barg 0.55 0.55 0.65 0.50 0.70 0.75 0.85 1.10 1.25 1.30 1.60 1.70 1.8 1.8 1.8 2.2 2.2 2.2 2.2
Water flow temperature - Maximum °C 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
Water flow temperature - Minimum °C 70°C Nat Gas / 60°C Oil
Water return temperature - Maximum °C 60°C Nat Gas / 50°C Oil
Fuel Flow rate for natural gas - Maximum m3/h 61.5 66.5 72.6 79.9 92.1 101.8 131.3 149.7 191.0 218.8 286.9 347.3 438.0 518.7 620.4 722.2 847.4 981.6 1136.5
Inlet pressure for natural gas - Nominal* mbar 20 20 20 20 20 20 20 30 40 45 60 60 60 Data on application
Inlet pressure for natural gas - Maximum mbar 50 50 50 50 50 50 50 50 50 50 75 75 75 100 100 Data on application
Input rate for oil (35 Sec) l/h 61.0 66.0 72.0 79.3 91.4 101.0 130.2 148.5 189.5 217.0 284.6 344.6 434.6 514.6 615.5 716.5 840.7 973.9 1127.5
Flue Flue gas volume at 15°C, 9% CO2,
N.T.P - Approx.
m3/h 737.9 799.3 891.6 983.8 1137.5 1229.8 1598.7 1813.9 2336.5 2674.7 3504.8 4242.7 5503.2 6517.7 7809.0 9069.5 10668.2 12328.2 14265.2
Flue gas temperature at 80/60°C °C 209 187 197 179 196 172 179 194 205 195 188 205 198 196 190 185 185 178 169
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 9.50 11.01 10.18 10.91 12.46 14.40 16.03 17.48
Connections Water flow connection PN6 DN100 DN100 DN100 DN100 DN100 DN100 DN125 DN125 DN125 DN150 DN150 DN200 DN200 DN200 DN200 DN250 DN250 DN300 DN300
Water return connection PN6 DN100 DN100 DN100 DN100 DN100 DN100 DN125 DN125 DN125 DN150 DN150 DN200 DN200 DN200 DN200 DN250 DN250 DN300 DN300
Gas inlet connection   Rc2" Rc2" Rc2" Rc2" Rc2" Rc2" Rc3" Rc2" Rc2" Rc2 1/2" Rc2 1/2" Rc3" Rc3" Rc4" Rc4" Data on application
Safety valve connection PN16 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a DN80 DN80 DN100 DN100 DN100 DN125 DN125
Drain connection   R1 1/4" R1 1/4" R1 1/4" R1 1/4" R1 1/4" R1 1/4" R1 1/4" R1 1/4" R1 1/4" R1 1/4" R1 1/4" R1 1/4" R2" R2" R2" DN65 DN65 DN65 DN80
Flue diameter (O/D) - Nominal mm 200 250 250 250 250 300 350 350 350 400 450 500 550 600 650 700 750 850 900
Flue hood drain connection   R3/4" R3/4" R3/4" R3/4" R3/4" R3/4" R1 1/4" R1 1/4" R1 1/4" R1 1/4" R1 1/4" R1 1/4" R1 1/4" R1 1/4" R1 1/4" R2" R2" R2" R2"
Electrical supply for boiler   230V 1Ph 50Hz
Electrical supply for burner   400V 3Ph 50Hz
Shipping weight (excluding burner) - Approx. kg 1130 1490 1490 1810 1810 2000 2460 2460 2948 3393 4248 4822 7025 8425 10075 13545 16040 18620 21900
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  • 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.