Abstract: A combustion apparatus for the burning of solid fuel using a plurality of secondary combustion zones is disclosed. The combustion apparatus includes primary and secondary air inlets, an inclined hearth and a unique second air source which washes up a window in the combustion apparatus creating a floating flame effect and rendering the window self-cleaning. A series of baffles define a secondary combustion pathway which optimizes secondary combustion of exhaust gasses and particulate matter. Coaxial rear and top direct venting apparatus are also disclosed. The combustion apparatus provided combusts a wide range of solid fuel at a high level of efficiency.

Abstract: A luminescence sensing device, comprising a plurality of optical sensor subunits, each said subunit comprising UV-illumination means for illuminating a sample; digital camera means, comprising a camera head; mirror means for directing light emitted from said sample onto said camera head; and a digital signal processor unit (DSP), processing signals generated by said camera head.