12VDC CO2 and Helium compressors??

[permafrost]

I have just noticed an ad. in a sailing mag featuring a marine refrigeration ststem using ' advanced Sterling cooler technology using CO2 and Helium'. The condensing unit? is claimed to weigh less than 20lbs and consume less than 18 amp-hours per day at12VDC. I manufacture and install marine refrigeration from my workshop in St Maarten and can not offer any system that consumes less than 40 amp/Hr/day,(depending on insulation).Does anyone know where I can access a CO2 comp. that can offer the above performance?

[Intermez]

Never heard of a small sterling system offered commercially. Who makes it?

[permafrost]

The "CO2 and Helium Sterling technology cooler" is a Tropicool 40 marketed by AvXcel,Inc San Marcos CA. info@avxcel.com The ad. is in Cruising World July '06 page 151