Joe, that's a suprise - here in Canada copper is common and legal for natural gas in a building - my commercial equipment has been workin fine w/ soft copper drops off black iron distribution lines
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics
