Place 3 pieces of kindling on the grate, then add 2-3 firelighters on top and a good handful of kindling onto the grate, then sprinkle a layer of smokeless coal around the kindling and on top of the kindling, leaving some kindling showing in the middle. Light the firelighters and ensure the vents on your stove are fully open. Once the fire has taken you can add more fuel to create a deep fire bed and adjust the vent until you achieve your desired burning rate. Leaving the vents fully open until the coals are glowing red. To prolong the burn, or to achieve over night burning, close the primary air vent, so that all the air intake is coming through the secondary and if you have one, your tertiary air vent. If burning on an open fireplace the process is the same except you will need to use a little more kindling at the beginning to set on fire, this is to allow the flue to be warmed more first from the kindling fire, remember that a warm flue draws properly, so the kindling fire is also being used to warm the flue up.