Image collapsing concentrator and method for collecting and util

Immersible solar heater for fluids

Immersible solar water heater

Immersible water heater

Immersion tube heater treater improved immersion tube heater tre

Impellers and apparatus for use therewith

Imperforate groove trigger

Impingement food preparation apparatus

Impingement tunnel oven with reduced energy consumption and...

Improved gas oven using flame switching

Improved mobile home heater

In-line manifold solar heat collectors

Incinerator

Incinerator apparatus and method

Inclusive single-use heating device

Indirect heat transfer apparatus

Indirect heater

Indirect radiant heating device

Indirect-fired heater with regeneration reclaim rotary heat exch

Indoor barbeque cooking device