It's simple maths really. Drawing 10 amps at 240V is 2400W. Drawing 170A at 14V also gives you 2400W. So if we assume the transformer has no losses, then a transformer delivering 170A @ 14V will be drawing 10A from the 240V outlet.
To account for transformer losses you simple lower the welding voltage (say to 10 or 12V) and you can still keep the total power of the unit at or under 2400W.
Bite off more than you can chew and then chew like crazy.