06/05/2026
We recently designed and built this sauna for a small backyard in a dense residential neighborhood in Stateline, Nevada (Lake Tahoe) — a 2-4-person sauna designed to fit a tight space without compromising on heat or air quality. The owner wanted a windowless sauna that would heat up fast, hold heat well, and give her total privacy from neighbors. So we went with no windows at all — just a solid wood door, cedar on every interior surface, and R13 insulation with an aluminum v***r barrier. The Harvia KIP60 6kW electric heater runs on a 240V dedicated circuit and gets the room to temperature in about 30 minutes. To handle ventilation, we installed an AC Infinity CloudLine mechanical fan on the exterior wall with adjustable speed control from inside — this keeps CO2 levels low and air quality comfortable during longer sessions. The stove, fan, and under-bench LED lights all run through the Harvia Xenio WiFi controls, so you can start the sauna from your phone. Three tiers of 2x4 redwood benches in a straight parallel layout, single-pitch roof with composite shingles, and the exterior stained to match their existing shed. It's an example of what a small space sauna build can look like when you prioritize efficiency and privacy over size and fancy features