I’ve used these for camping for over a decade and did all our cooking on it for a couple of months during lockdown 1 when we had no kitchen. They are excellent, but they don’t kick out as much heat as the big burner on a gas hob. If you only have electric though, get one!
It varies, a normal camping stove might be around 2kw which would be similar to a normal size burner on a gas hob.
They do go up higher than that, I think the powerful ones need bigger bottles though, otherwise they’ll burn through a butane canister every 5 minutes.
I’ve used these for camping for over a decade and did all our cooking on it for a couple of months during lockdown 1 when we had no kitchen. They are excellent, but they don’t kick out as much heat as the big burner on a gas hob. If you only have electric though, get one!