Collection: Sauna Heaters

Restore Suite carries electric and wood-burning sauna heaters and stoves from Harvia and Huum, along with the digital controls, heater guards, and sauna stones that complete a traditional sauna. They are sized for everything from small home rooms to large commercial spaces. The heater is the single most important choice in a traditional build: it sets how fast the room reaches temperature, how even the heat feels, and how much electrical work the installation needs.

Short on time? See our best sauna heaters for 2026, with picks by room size, power and style.

Electric vs wood-burning heaters

Electric heaters are the most common choice for home saunas. They heat quickly, hold a steady temperature from a wall-mounted or app-based controller, and only need the correct dedicated circuit. Wood-burning stoves deliver the deep, crackling heat and ritual that many traditional-sauna owners prefer, with no electrical run required, but they need a flue and safe clearance to combustibles. Both use a bed of sauna stones so you can ladle water for loyly, the burst of steam that defines a traditional session.

How to size a sauna heater

Match the heater to the room's air volume, not just its floor area. As a general guideline, roughly 1 kW of output heats about 1.3 cubic meters (about 45 cubic feet) of a well-insulated room, and glass doors, large windows, or uninsulated walls push the requirement higher. Always follow the manufacturer sizing chart for the exact model, since stone capacity and wall material change the math. An undersized heater struggles to reach temperature, while an oversized one wastes energy.

Installation and power requirements

Most residential electric heaters above a few kilowatts need a dedicated 240V circuit installed by a licensed electrician, with the wire gauge sized to the heater and a disconnect within sight of the unit. If you are planning the room first, our sauna installation guide and sauna electrical requirements breakdown cover circuits, amperage, and permits before you order.

Complete your sauna

A heater is one piece of the room. Browse our traditional saunas, barrel saunas, and outdoor saunas for complete cabins, or read the full sauna buying guide if you are still choosing a type and size.

Sauna heater FAQ

What size sauna heater do I need? Size the heater to the room's air volume. As a rough guideline about 1 kW heats 1.3 cubic meters (45 cubic feet) of an insulated room, but always confirm against the manufacturer sizing chart, since glass, uninsulated walls, and stone capacity all change the requirement.

Do sauna heaters need a special electrical circuit? Most electric heaters above a few kilowatts require a dedicated 240V circuit installed by a licensed electrician, with the wire sized to the heater and a disconnect within sight of the unit. Confirm the spec sheet before you order.

What is the difference between electric and wood-burning sauna heaters? Electric heaters heat quickly and hold a precise temperature on a controller, needing only the correct circuit. Wood-burning stoves need no electrical run and give a deeper, traditional heat, but require a flue and safe clearances. Both take water on the stones for steam.