Hello, thank you for taking the time to leave us feedback. We are sorry to hear that you are not satisfied with our Night briquettes. Each wood burner is different and it might take some test and trial to achieve the best results. To achieve the longest burning time, we recommend putting 2-3 Night briquettes into the fire just before any flames go out and whilst embers are still glowing red. You must then leave the air intake open and allow the briquettes to ignite, when they have caught fire, air intake should be reduced to minimal. Kind regards, Eddie
