For use on Open Fires Not authorised for use in smokeless zones Long Flame Low Ash Content It's easy to light, 1 x 20 Kilo Bag CPLs Traditional House Coal is a classic fuel which has been used across the UK for decades, keeping houses warm through even the coldest winters. Traditional House Coal is a popular coal for use on open fires, and some coal burning appliances. It's easy to light, burns with a long and strong flame, and has a low ash content, making it relatively easy to clean up after. This coal burns with a long and natural flame.