The Zenia - 10kw Contemporary Wood Burning Stove UK912 With its steel construction, it heats up in no time at all and boasts an output of 10kW. The opening to put logs in is 357mm x 500mm. The burning chamber is still large enough to burn good sized logs and the heat output is high enough to heat even large rooms with ease. The Panadero Zenia stove is designed primarily as a wood burner but features a grate and ash pan for burning smokeless fuels.