u/That-Sky-5184

I’m confused about the tankless water heater. On some videos I’ve watched about it it said “you’ll have endless supply of water as long as you’re hooked up to electric” on others it said “make sure to get an extra propane tank to make sure every one gets to take a hot shower”. So which one is it? Is it electric only or propane only or dual?

I’m confused about the tankless water heater. On some videos I’ve watched about it it said “you’ll have endless supply of water as long as you’re hooked up to electric” on others it said “make sure to get an extra propane tank to make sure every one gets to take a hot shower”. So which one is it? Is it electric only or propane only or dual?