Failure to use qualified feedstock in e1 syngas generators may lead to premature failure of the system and void the product warranty. e1 specifies IMPCA grade methanol and water purified to ASTM Type III grade. Methanol/water feedstock quality is critical to the correct and reliable operation of the BTR syngas generator, and care should be taken to ensure that feedstock is quality checked when either purchasing preblended feedstock or mixing it on-site.