[quote author="Webmaster" date="1212297531"]Is that really a "feature"? One can assume that if pellets are burning back into the plastic tube, and it melts, that burning pellets can then both drop and get access to air (to burn more)...plus ignite anything that is on the floor, etc. Explain the benefits, please. If it is posible this can happen I would say this is very dangerous indeed and the boiler will have a hard time getting a listing from any testing laboratory like UL etc. Don't want to burst anybodies bubble here but Pinnical boilers made in BC Canada and sold for $6,700. have been tested and are listed and have a double auger system that cannot back feed. They have been on the market for some time and have a very very good safty record. I have one and will have to say it would be hard to beat this boiler as far as safe and effeceint operation is concerned. Did someone say they will be asking $12,000? for a Janfire??