Will Drano Unfree [hot]ze Pipes

This is an interesting question because it mixes two different pipe problems: (ice blockage) and clogging (grease/hair/debris).

No, you should use Drano or any other chemical drain cleaner to unfreeze your pipes . While it may be tempting to reach for a quick fix during a winter freeze, pouring harsh chemicals into a frozen line is ineffective and can cause severe, permanent damage to your plumbing. Why Drano Won't Work on Frozen Pipes

To understand why Drano fails, one must understand how the product works.