Blazebrite is a mix of Coalite nuts and Sunbrite for roomheaters. Although it burns satisfactorily, we can recommend other fuels to do the same job better. The ratings below are given to help you decide which is best for you. 3 spots = Excellent, 2 spots = Very Good, 1 spot = Good. Product name Blazebrite Heat Output • Burn time • Ease of lighting • Smokeless Yes Suitable for Room Heaters