Harvia Split-Face Olivine Diabase Sauna Heater Stones 2-4" / 44lbs | AC3000

I had no idea what I was missing!

My sauna heater is really, really old, but it still works so I still use it. That said, the rocks were also really old. These new stones look so much better and seem to even hold the heat better as well. Like I said in the title, I had no idea what I was missing! Puts a lot of new life into an old, Montgomery Ward heater.