Abstract: A debris skimmer includes an entry section including an opening through which debris is directed, an angled plane in the entry section that extends from a high point adjacent the opening to a low point, and a storage section disposed downstream of the entry section. The debris skimmer separates the debris from water or other fluid, enabling it to be captured and removed.

Abstract: A method for controlling Japanese beetles through the spreading of spore dust to innoculate the ground with spores for causing milky disease in larvae of Japanese beetles by luring Japanese beetles into a container, directing the beetles into a second container where the beetles are immersed into the spore dust, and providing escape means to allow the beetles to escape and spread the spore dust through their natural activity, and the apparatus described for so treating the beetles.

Abstract: A heating system including a fireplace and a flue for carrying away combustion products, door means being provided to prevent a draft through the space to be heated and to oxygen-starve a fire in the fireplace; and, heat exchanger means is mounted in the flue, the heat exchanger means comprising a plurality of coils for carrying a heat exchange medium, the coils being connected in parallel with one another on manifolds that extend through the coils.