What's the difference between a reverse mortgage and a bank home equity loan?

With a traditional second mortgage, or a home equity line of credit, you must have sufficient income versus debt ratio to qualify for the loan, and you are required to make monthly mortgage payments. The reverse mortgage is different in that it pays you, and is available regardless of your current income. The amount you can borrow depends on your age, the current interest rate, and the appraised value of your home, sales price or FHA's mortgage limits, whichever is less. Generally, the more valuable your home is, the older you are, the lower the interest, the more you may borrow.
With a HECM, you don't make monthly principal and interest payments, the lender pays you according to the payment plan you select. Like all homeowners, you still are required to pay your real estate taxes, insurance and other conventional payments like utilities. With an FHA HECM you cannot be foreclosed or forced to vacate your house because you "missed your mortgage payment."