I Have a thermal arc 181i and now looking to purchase a TIG torch to use with it. It's a lift start TIG. I believe you also have to connect the gas directly to the gas bottle rather than machine. Hat type of torch is required? Thanks in advance.
You need a valved torch suitable for the current you will be welding at, not necessarily the machines max output. I have a SR26 Flex head which came with my TIG and is rated for the machines max, 200 amps but torch rated at 250. But I use the lower rated WP17 Flex head as it is significantly lighter it is rated at about 110 amps.