Emission Factors for Small Combustion Appliances

The table below provides emission factors for small combustion appliances, for NOx, PM10 and PM2.5, in units of g/GJ, as taken from the EMEP/CORINAIR Emission Inventory Guidebook 2013. Emissions are also provided both per household and per hectare of service sector floorspace, in units of kg/year, as derived from the g/GJ emission factors.

The emission factors can be used as the basis of determining emission rates for small combustion appliances (in units of g/s), required as part of the screening of indiviudal biomass installations - see para 7.48 of Technical Guidance LAQM.TG(16) for more information.

The emissions per household/hectare of service sector floor space can be used to determine the total emissions density per 500m x 500m, required as part of the screening of combined biomass installations - see para 7.54 of Technical Guidance LAQM.TG(16) for more information.

Type Appliance Type Fuel Type Emission Factor (g/GJ net) Emissions per Household (kg/year) Emissions per Hectare of Service Sector Floorspace (kg/year)
PM10
Residential type ( <1MWth) Open Fireplace Biomass 840 95.8 12453
Other Solid Fuel 330 71.5 9295
Stove Biomass 760 34.7 4507
Other Solid Fuel 450 39 5070
Boiler (th) Biomass 480 13.7 1779
Other Solid Fuel 225 12.2 1584
Advanced Stove (<1MWth) Coal Fuels 240 13 1690
Energy Efficient Stove Wood 380 10.8 1408
Advanced / Ecolabelled Stoves and Boilers Wood 95 2.7 352
Pellet Stoves and Boilers Wood 29 1.4 183
Non-residential (>50 kWth and <1MWth) Boiler Coal Fuels 190 - 1338
Advanced Manual Boiler Coal Fuels 140 - 986
Advanced Automatic Boiler Coal Fuels 78 - 549
Manual Boiler Wood 143 - 530
Automatic Boiler Wood 34 - 214
PM2.5
Residential type ( <1MWth) Open Fireplace Biomass 820 93.5 12157
Other Solid Fuel 330 71.5 9295
Stove Biomass 740 33.7 4388
Other Solid Fuel 450 39 5070
Boiler (th) Biomass 470 13.4 1742
Other Solid Fuel 201 10.9 1415
Advanced Stove (<1MWth) Coal Fuels 220 11.9 1549
Energy Efficient Stove Wood 370 10.5 1371
Advanced / Ecolabelled Stoves and Boilers Wood 93 2.7 345
Pellet Stoves and Boilers Wood 29 1.4 183
Non-residential (>50 kWth and <1MWth) Boiler Coal Fuels 170 - 1197
Advanced Manual Boiler Coal Fuels 130 - 915
Advanced Automatic Boiler Coal Fuels 70 - 493
Manual Boiler Wood 140 - 519
Automatic Boiler Wood 33 - 208
NOx
Residential type ( <1MWth) Open Fireplace Biomass 50 5.7 741
Other Solid Fuel 60 13 1690
Stove Biomass 50 2.3 297
Other Solid Fuel 100 8.7 1127
Boiler (th) Biomass 80 2.3 297
Other Solid Fuel 158 8.6 1113
Advanced Stove (<1MWth) Coal Fuels 150 8.1 1056
Energy Efficient Stove Wood 80 2.3 297
Advanced / Ecolabelled Stoves and Boilers Wood 95 2.7 352
Pellet Stoves and Boilers Wood 80 3.9 504
Non-residential (>50 kWth and <1MWth) Boiler Coal Fuels 160 - 1127
Advanced Manual Boiler Coal Fuels 200 - 1408
Advanced Automatic Boiler Coal Fuels 165 - 1162
Manual Boiler Wood 91 - 337
Automatic Boiler Wood 91 - 573

This table is expected to be updated from time to time, so has been removed from LAQM.TG(16) to enable these amends to take place.

For further support, please contact the LAQM Helpdesk.