Powercat products provide unique capabilities for waste and biomass combustion applications. These products are proprietary, highly concentrated water-based solutions of ash modifiers and/or combustion catalysts. Being liquid solutions, the chemistry delivery is in the form of molecules as opposed to particles found in powdered products. This provides the ability to combine intimately with the substrate and deliver the chemistry much more effectively, especially in one-pass boiler applications. Dosing systems are simple, effective and can be interlocked to the material feed system.