Patent ID: 9404691
Filing Date: 2016-08-02
CPC Classification: F24D,F24H,F28D,F28F,Y02B

Claim Text:
1. A condensing heat recovery unit for a portable fluid heater, comprising: a heat exchanger having an inlet manifold with an inlet port; an outlet manifold with an outlet port; and a plurality of rectangular heat recovery panels arranged in a side-to-side juxtaposition with open top ends respectively connected to the outlet manifold and the open bottom ends respectively connected to the inlet manifold; a flue gas collection hood that directs flue gas exhausted from the portable fluid heater into a first side of the heat exchanger; a condensate collector on an opposite side of the heat exchanger that funnels flue gas condensate to a condensate drain; and a high pressure fluid pump connected to the condensate drain to pump collected condensate to an inlet of the portable fluid heater.