34% more infrared reaches you. We measured it.
Transcend heaters warm your body, not just the air, so you get a deep sweat at a comfortable temperature.

The heart of every High Tech Health sauna
Far infrared, tuned to the water in your body
Prefer full spectrum? Full-spectrum heaters are available for the front of any Transcend sauna. We still recommend far infrared for most people.
Efficient absorption
energy converts to heat on contact, not in the air.
Raised core temperature
heat radiates inward without high air heat.
Sweat at lower air temperatures
the session is more comfortable at lower air temp.
34%, measured
Using a test procedure called calorimetry, we placed identical beakers of water at the backrest of a Transcend heater and a typical panel heater, both saunas at 100°F air temperature, and filmed both. The Transcend beaker heated 34% faster. The reason: Transcend heaters put more infrared into the cabin and aim it where you sit, instead of spreading it across the walls.

Three kinds of fields. We address all three.
An electric sauna can expose you to three kinds of fields: electric fields, created by voltage; magnetic fields, created by current; and radio-frequency fields, created by wireless electronics. Most “low EMF” saunas only address magnetic fields. Triple Antifield is our name for addressing all three throughout the cabin, from the heaters to the wiring, the controller and the touchscreen.
Electric fields: In Transcend heaters, a patented conductive layer stops the electric field before it leaves the heater.
Magnetic fields: In Transcend heaters, current runs out and back through paired paths, so their magnetic fields cancel each other. We mitigate fields from the cabin wiring, controller and touchscreen too.
Radio frequency: On every model, Wi-Fi or Bluetooth can be switched off completely. With them off, your sauna emits no RF.
Nothing hidden at 0 Hz. Converting a sauna’s power to DC can make fields disappear from standard EMF meters without removing them. We don’t do that, so the fields we’ve reduced are actually reduced.
The field-cancellation design inside Transcend heaters is protected by U.S. Patents 9,770,386; 10,765,597; and 12,303,457. See our patents →

Other brands publish their lowest readings. We publish our highest.
Most brands choose where their EMF is measured. We asked Vitatech Electromagnetics to find our highest readings, and those are the numbers we publish. Page 3 of the report has everything you need.
Our heater is unchanged since this report, though the shielding on its wiring has been improved.
UL safety-tested. Few infrared heaters can pass.
Underwriters Laboratories (UL) is a company that creates standards and evaluates the safety of products. Our heaters are a UL recognized component, which means UL has evaluated them against its safety standards.
UL Recognized Component