https://www.gardeningknowhow.com/garden-how-to/unhinged-and-brilliant-garden-project
How to Build a Fire-Heated Outdoor Bathtub (Yes, Really) | Gardening Know How
Mar 29, 2026 - A steel tub, cinderblocks, and a wood fire. This wildly genius garden project is easier than it looks – here's exactly how to build it.
to build a fireheated outdoor