Abstract: A self powered pelletized fuel heating device comprising a thermal electric generator (TEG) unit therein powering a typical collection of low voltage system components including a storage power unit. Non-typically, the heating device requires no external power supply and relies on thermodynamic principles using the pelletized fuel as a heat source. The TEG is configured and positioned optimally for conventional operation and installation requirements without modification to normal form or function.

Abstract: An inline vent pipe insert or attachment operating to capture latent heat for living room temperature maintenance. Configured to replace or attach to an exiting vent pipe section and further configured to self-generate power to supply electric current sufficient to operate a blower. The blower configured to draw cool room air through the invention and sufficient to circulate the cool air through a further configured enclosed channel duct with sufficiently configured heat dissipation fins to capture latent heat from the inline vent. Said heat dissipation fins function as cooling heat sink for a thermal electric generator based on the Seebeck principles strategically configured to capture maximum heat from the vent pipe. The invention delivers warmed air to the room through a shroud, capturing latent heat otherwise lost to the external vent without an external power supply. The delivery of warm is configured to the rate at which latent heat is available.

Abstract: A shut-off device, especially suitable for controlling gas flow to an apparatus, has a body attaching between a gas supply source and a gas powered appliance like a barbecue, with internal body bore passages between; a piston located and compressed in a bore by a spring against a stopper pin; the piston positioned over a gas nozzle configured inline with the bore passages to cut off gas flow when the stopper pin released the piston. A solenoid connects to the stopper pin is electrically activated by a timer, a pressure sensor, and a timer selector, powered a battery. A manual reset button provides re-activation of the invention once tripped, allows gas flow.