How about stainless steel? Malcolm
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Andreas W Ohnsorge Sent: 18 February 2005 11:39 To: [EMAIL PROTECTED] Subject: [Biofuel] WVO in central heating burners Currently I am running my central heating on WVO in a modified Mannesman (blue) burner. Modified because the material used in the nozzle, the filter and in the pre-heater (sintered bronze, brass) oxidizes over time and cloggs the nozzle. Because of these problems I have been speaking to several experts from the nozzle / pump / burner producers and they told me that I should get rid of all devices that contain copper in any form (means: housings of filters, valves, pipes,...) which I am currently doing. In addition their comment was that in some of their long term experiments even iron seemed to corrode under the influence of the organic acids of vegetable oil. Does anyone out there has any knowledge where to get the proper equipment that is suitable for such an operation (means heat resitant up to 120 - 150 degrees Celsius, resistant against organic acids, works with pressures of about 20 - 30 bar - and: is not too expensive)? I would really appreciate a discussion about experiences in this area... Regards Andreas _______________________________________________ Biofuel mailing list [EMAIL PROTECTED] http://wwia.org/mailman/listinfo.cgi/biofuel Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuel archives at Infoarchive.net (searchable): http://infoarchive.net/sgroup/biofuel/