Hi, 01.Diffrence:Butane is not a highly toxic gas. Therefore, it can be safely, properly stored inside with little worry. You can also extract approximately 12 percent more energy per liter from butane than you can propane, which means that, liter for liter, you will get more mileage out of butane. Butane is also a cheaper gas to purchase, though propane is more widely available . (extract from the article) 02.For WPS - Change in the type of preheat/type of gas is not an essential variable.Some customer specifications may restrict while you do on site.So pls.refer to project spec.if you work on site. Thanks & Regards, (karthik) Karthikeyan.S QA/QC Manager Getabec Energy Co.,Ltd. 379,Moo6,Soi8,Nikhomphatana, Rayong-21180, Thailand. Phone: 0066 38 897035-8 (Off) Fax: 0066 38 897034 Hand Phone: 0066 892512282 --- On Tue, 8/31/10, eduardocalva@hotmail.com <eduardocalva@hotmail.com> wrote:
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