It you want high power, buy the "Turkey Fryer" for $35-$50
A good, durable propane stove with electronic control $99 for single burner, $150 for double burner,
it would provide about 10 years everyday usage.
Try to buy some reliable brand , the cheaper one are useless.
It should rate at least 15,000-17,000 BTU.
Your alternative is the Coleman camping stove, using the 2 LB propane which cost over $6 each, which
I take along for picnic that I can cook up a meal real fast in the middle of nowhere