https://www.openlearning.com/u..../abrahamsenbusk-smox
https://damageroof10.werite.ne....t/how-to-explain-ele
of Electric Fire Heaters Some electric fire-pits come with flame effects that resemble the look of real flames. Some electric fire-pits have a technologically advanced design with LED lights and mirrors which create the illusion of depth and motion. Electric heaters use either radiant or convection heat. Convection heaters draw cool air in and circulate it through an element while radiant