Shielding gas always seem to run out during a project or on the weekends when the welding shops aren’t open. I’d go with the biggest bottle you can afford. Most beginners gravitate towards the 80cu ft or 120 cu ft.
I’d check prices on both the bottles themselves and the cost to refill them. Also check to see if your welding supply shop does bottle upgrades so that if you find you want a bigger bottle in the future you only pay the cost difference to upgrade bottles. Where I’m at the cost difference between filling an 80 and 120 is only a couple of bucks.
When I first started I bought a 200cu ft. A year later I upgraded to 330cu ft. 3 of them
I’d check prices on both the bottles themselves and the cost to refill them. Also check to see if your welding supply shop does bottle upgrades so that if you find you want a bigger bottle in the future you only pay the cost difference to upgrade bottles. Where I’m at the cost difference between filling an 80 and 120 is only a couple of bucks.
When I first started I bought a 200cu ft. A year later I upgraded to 330cu ft. 3 of them