We were in B&Q yesterday to look at some shelving units for the garage and noticed a display of electric insert fires which are designed to look like a real coal fire. A couple attracted our attention as they were very realistic- not only did the flame effect look quite real, there was smoke. No smell. If you blew on the 'fire' the smoke moved. I couldn't feel any heat, suggesting nothing was being burned.
I'm now intrigued how it worked.
Does anyone have one and know?