Abstract: A fluid heating system for heating a production fluid using a thermal transfer fluid, the production fluid being contained in a vessel includes an electric blower configured to receive ambient air and electrical input power and to provide output source air, a combustion system configured to receive the source air from the electric blower and to receive fuel and to provide the thermal transfer fluid, a heat exchanger configured to receive the thermal transfer fluid from the combustion system and configured to provide heat exchange from the thermal transfer fluid to the production fluid, and to provide output exhaust gas, and wherein the electric fan provides a predetermined volume flow rate of the output source air at a predetermined blower efficiency such that the fluid heating system has a Bulk Heat Flux of at least about 14.7 kBTU/Hr/ft2 and a Pressure Drop of at least about 0.7 psi.

Abstract: A putting trainer device is presented. The putting trainer device comprises a plate having an inverted U-channel depending angularly from each end. An elastic band or strap is disposed about each channel. The plate preferably has a hole wherein an attachment pin is inserted for attaching the plate to one end of a putter. The plate is formed to a predetermined length to assure proper spacing of the golfer's arm during training. Further, each channel depends from predetermined angles to assure proper positioning of the golfer's arms and wrist.