Are there alternative welding methods that can be used by people with heart pacemakers?

Not usualy: We really don't think of OCD as contagious in any sense. However because it can be very intense and powerful to be around someone with OCD it can seem very compelling. Sometimes people over accommodate to be supportive or agreeable.

Torches: Welding < 200 amps is often safe, but we'd need to look at your specific device. The best advice is to use torch welding techniques which do not produce electromagnetic radiation of any meaningful quantity. Use extreme caution if welding energy exceeds the following values: • 100 amps for tig/mig welding • 250 amps for ac arc welding • 250 amps for plasma welding • 350 amps for dc arc welding.