
When I worked in the twin cities mn. common practice to use soft copper, specifically for unit heaters in the garage, I know there big on codes, plus I have 5/8'' copper gas lines going to the dryer and stove, I know it's more practical and common for iron pipe for furnaces and water heaters, what's the difference in appliances? It was a plumbing and heating outfit that installed copper gas line to the dryer, about 10' or less, been about 3 years now, no leaks, maybe the sulphur isn't as bad here thanks