Over the years I've seen the gas industry go away from efficiency and move towards units which are more aesthetically pleasing then good heaters. I know some of the complaints I've received in the last few years is that the more efficient units blow you out of the room to quickly. I can appreciate that since I like having the gas fireplace on when company comes over, but at the same time I also like the whole zone heating concept where you heat the room you're in and not the entire house. I recently designed a unit which allowed the consumer to adjust the level of efficiency by turning a bypass lever. Now we're not talking 30% (typical open masonry fireplace) to 90% (furnace levels), but there is a noticeable and immediate difference in the amount of heat given off. At the 2007 HPBA one thing that caught my eye was a maker I've never heard of. ECS has a gas unit which is claiming 93% efficiency. Not only that, but the heat exchange is high enough that the venting is done via PVC pipe. That shocked me - plastic vent pipe?? Never thought of that! So the 2 biggest drawbacks I can think of is that the unit cannot run during a power outage (exhaust fan), just like the furnace in your house, and it’s a Really plain looking unit. At HPBA there was zero buzz about this unit, while an efficient pellet stove got a Vesta Award. Of course we all saw Travis mop up the awards with both "Best of Shows" *Rolls Eyes*. So my question to all of you; is there any interest in an efficient (90's) gas fireplace? Bouncing the idea off of contractors and colleagues is a big “No,” sighting that most all houses that have a gas hook-up already have a very efficient gas furnace. The fireplace is more for aesthetics, and that extra line on the features list when selling. Personally I see a big push for green appliances in the immediate future. Do you agree??