Metro Fires new approved ULEB is the Ultra Tiny Rad. It’s impressive performance delivers a tested peak output of 14kW of warmth to your home. The firebox design and radiant output enables you to heat your home to a nice, even temperature. Firebox construction of 6mm NZ made steel and firebrick lined with a 6mm cooktop. The Ultra Tiny Rad is just like your traditional wood burner offering simple operation and maintenance with impressive heat output.