White Heat

Welcome to Wight Heat briquettes

Wight Heat Briquettes are made from 100% clean wood waste, nothing added.

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Typical calorific values of biomass vs fuel

Fuel
Moisture
kWh
/kg
kcal
/kg
Weight
kg/m3
kg =
1liter fuel
Briquettes 20% 4,9 4,214 660 2,03
Forest wood chip dry 40% 2,89 2,511 240 3,44
Forest wood chip fresh 55% 2 1,72 310 4,98
Miscanthus 10% 4,4 3,78 140 2,26
Rapeseed 9% 6,83 5,87 700 1,46
Sawdust 6% 4,2 3,629 160 2,36
Wheat Straw 15% 4 3,44 100 2,49
Wood chip 20% 4,22 3,629 175 2,36
Wood granulate 8% 4,44 3,81 600 2,24
Woodlogs ash  45% 2,61 2,245 650 3,81
Woodlogs ash dry 20% 4,08 3,509 400 2,44
Coal 10% 7 6,02 750 1,36
Fuel gasoil 11,8 11,2 840 0,84
Natural gas 10,83> 9,314< 0 0
Energy data for selected agricultural by-products. Source Biofuels b2b.

Calorific values of fuel

Fuel
Energy density by mass
GJ/tonne
Energy density by mass
kWh/kg
Bulk density
kg/m3
Energy density by volume
MJ/m3
Energy density by volume
kWh/m3
Wood chips
(30% MC)
12.6
3.5
250
3,200
880
Log wood (stacked - air dry: 20% MC)
14.7
4.1
350-500
5,200-7,400
1,400-2,000
Wood (solid - oven dry)
19
5.3
400-600
7,600-11,400
2,100-3,200
Wood pellets
17-18
4.7-5.0
600-700
10,800-12,600
3,000-3,500
Miscanthus
(bale - 25% MC)
13
3.6
140-180
1,800-2,300
500-650
House coal
27-31
7.5-8.6
850
25,500-25,400
7,100-7,300
Anthracite
33
9.2
1,100
36,300
10,100
Heating oil
42.5
11.8
845
36,000
10,000
Natural gas (NTP)
54
15
0.7
39.0
10.8
LPG
49.7
13.8
510
25,300
7,000
 

Find out more

10kg bags
£3.95 each
Delivered £4.50 each

2.5kg bags (scented)
£1.80 each + delivery

Delivery to Isle of Wight only.

Trade prices available upon request.