I'd seen a few Tornadoes in wrecking yards in recent years and had contemplated buying a valve cover for wall display, but couldn't get too enthusiastic about a schmutzy, cracked old piece ...

The valve might be inside the fireplace instead of on the wall. Locate the pilot light and burner control knobs. These could be under the fireplace logs or to the side.

Three-handle shower valves tend to cost the most, but they’re also the least common shower valve on the market. Single-handle shower valves: $30 to $150 Two-handle shower valves: $25 to $150 ...