Between Living · Sauna Heaters · The Heart of the Sauna

Heat begins here. The ritual follows.

The sauna room creates the setting. The heater creates the experience. Its output, stone volume, airflow and response shape how warmth moves through the room, how water becomes löyly, and how the body ultimately encounters the heat.

Choose the heater first. Let the sauna form around the heat you want to feel.

Between Living · Sauna Heaters

Choose the engineering behind the heat.

Begin with the maker. Each approaches heat differently through stone volume, airflow, material, control and the architecture of the sauna itself.

Finnish Sauna Engineering

Harvia

A broad heat system spanning electric heaters, stone-rich designs, wood-burning tradition and intelligent sauna control.

German Precision

EOS

Architectural sauna heating built around technical precision, disciplined materials and residential to commercial performance.

Estonian Stone Heat

HUUM

Sculptural electric heaters built around generous stone capacity, open form and a softer relationship between heater and sauna room.

Canadian Built

Homecraft

Purposeful electric sauna heating shaped around durable construction, practical performance and straightforward everyday ownership.

Continue into the featured heater lineup

Selected Harvia innovations

Product Highlights

Feel the Spirit of Löyly

Harvia Spirit

A sculptural electric heater designed around an open stone basket, refined airflow, and expressive löyly for modern home sauna spaces.

Explore Harvia Spirit

Cleaner-Combustion Wood Heat

Harvia GreenFlame

A cleaner-combustion wood-burning family that preserves the warmth, visible flame, and ritual of real fire while refining the way the fire chamber burns.

Explore GreenFlame

Stone-Rich Wood-Burning Heat

Cilindro, Wood Burning

Bring the living atmosphere of real fire into your sauna with a stone-rich cylindrical stove designed for generous, enveloping heat and deeply satisfying löyly.

Explore Cilindro Wood Burning

Between Living Sauna Sizing Guide

Find the Heater Your Sauna Needs.

Enter your sauna dimensions and a few simple construction details. Between Living will estimate the calculatory room volume, identify the nearest suitable heater output, and reveal sauna heaters matched to that range.

Measure the Room Adjust for Materials Estimate kW See Heater Matches

Step One

Tell Us About the Sauna Room

Width in feet

Height in feet

Depth in feet

My sauna uses log construction

My sauna has a glass door

Area of other non-insulated surfaces in square feet

Glass, log walls, windows, stone, concrete, brick, and other non-insulated surfaces can increase the effective heating demand. Add the information you know and the calculator will account for it.

Your Sauna Estimate

Your Suggested Heater Range

0 ft³

Calculatory sauna volume

0.0 kW

Estimated heater power

Calculation Breakdown

Enter your sauna dimensions to begin.

This calculator is a planning guide. Before installation, compare your result with the room range and requirements shown for the exact heater you select.

Selected from the Between Living sauna heater collection

Heaters Matched to Your Sauna.

Based on your estimated heating requirement, these heaters carry the closest corresponding Between Living kW classification.

No heaters are currently available under this exact kW classification. Explore the complete sauna heater collection to compare additional options.

Complete the Heat Ritual

Sauna stones glowing in the warmth of a sauna heater

Where the Heater Becomes Löyly

Heat Needs Stones.

A sauna heater creates the heat, but the stones determine how that heat is held, softened and released. They receive the water, transform it into löyly, and help shape the warmth that moves through the room. Complete your heater with stones chosen for the sauna experience you intend to create.

Explore Sauna Stones

Intelligent control, wherever you are

Prepare It From Anywhere.
Fenix Learns the Rest.

Harvia Fenix makes everyday sauna use remarkably simple. Through the MyHarvia app, you can begin preparing your sauna while you are away from home, check its status, and return to a room that is ready when you are. Its built-in intelligence learns how your particular heater and sauna room warm over time, then adapts its preparation for a more consistent experience. Instead of repeatedly managing every detail, you choose how you want the sauna to feel and Fenix helps take care of the journey there.

Prepare From Anywhere · Learns Your Sauna · Ready When You Return

Explore Harvia Fenix →

Prepare It Remotely

Use MyHarvia to begin preparing your sauna, review its status, and manage supported settings while you are away from home.

Learns How It Heats

Fenix learns how your specific heater and sauna room warm, helping it prepare the space with greater consistency over time.

Arrive to a Ready Sauna

Spend less time waiting and more time restoring, with the room prepared around the moment you intend to step into the heat.

Ready to Choose Your Heat?

You’ve explored the systems, standout heater families, stones, controls and sizing. From here, browse the complete sauna heater collection, return to the makers and compare the engineering behind the heat, or move directly into commercial sauna heating.