in the art to practice the invention and it is to be understood that other embodiments may be utilized and that structural logical and electrical changes may be made without departing from the scope of the present invention the following description is therefore not to be taken in a limited sense and the scope of the present invention is defined by the appended claims fig1 shows a cross section of a fire extinguishing assembly indicated generally at 100 the fire extinguishing assembly comprises a canister 110 for coupling with an ignition unit 115 the canister 110 includes a container 120 that may be lined with a desired material 122 such as ceramic paper or insulative material such as cardboard ceramic paper may produce fewer toxic gases such as co and unwanted odors as compared to other materials container 120 contains a bottom piece 125 with exit ports 127 a sealant 128 such as a poly sealant may be used over the bottom piece 125 to provide an almost hermetic seal for contents inside container 120 a cross member spacer 130 formed of mild steel in one embodiment is positioned within the container 120 between the bottom piece 125 a first screen 133 is positioned adjacent the cross.