Frequently Asked Questions about the Sauna 1) How is the Thermal Life® hypoallergenic poplar sauna different from other far infrared saunas? 1.) Dual digital controls on inside and outside of unit allow full control of sauna temperature and session duration. Temperature can be set in increments of one degree. Session duration can be set in increments of one minute. Controls also feature a timer allowing delayed activation of heaters. 2.) Constructed entirely out of the finest hypoallergenic solid poplar wood, with non-toxic water-based glues, using tongue and groove joints, with lexan windows that do not out-gas. 3.) State-of-the-art far infrared heaters radiate rays in a complete 360-degree radius with a reflector located behind every heater to reflect and intensify the FIR rays into the sauna. 4.) Units come with the finest ventilation system. The built-in fan (an exclusive feature from Thermal Life ™) is used to exhaust some heat but more importantly, draw fresh air in from the outside. This is an important feature because the oxygen content in the air in competitors closed-in saunas diminishes very quickly. The saunas also have a vent located in the roof panel, and the lexan, non-toxic window can be opened. 5.) Speakers included with every unit for easy connection to your existing stereo. 6.) Uses less electricity than your household hairdryer and plugs into your standard 110-volt outlet (4-person unit uses 220V). 7.) Comes ready to assemble and takes only 20 minutes to put together. No tools required. 8.) 30-day unconditional money-back guarantee. 9.) Lifetime warranty on all components.  10.) More health practitioners recommend the Thermal Life® far infrared poplar sauna than any other sauna. 2) Does the sauna have constant emitting heaters? Yes, the heaters continuously emit IR, but the power level will fluctuate to maintain the heat at the setting controlled by our custom control unit. Our control unit allows the sauna temperature to be set in 1 degree increments. ‘Constant emitting heaters’ is frequently a sales gimmick used by unscrupulous salesmen for saunas with limited, imprecise heat settings (such as low, medium, and high). The low setting on one of these saunas can run anywhere from 100 F to 130F. For safe detoxification, it is essential to not move to too high of a temperature too fast. Our temperature controls allow you to have the exact temperature for your phase of detoxification. 3) Is the Thermal Life ® Far Infrared Sauna effective at detoxifying mercury and other heavy metals? Absolutely! In fact, no other sauna, of any kind, has been proven to be more effective at detoxifying mercury, lead, aluminum, beryllium, arsenic, pesticides, fungicides, etc. 4) What temperature, and for how long should I stay in the sauna? How often should I use the sauna? It is best to start slowly to build your heat acclimatization and to not stress your system as toxins mobilize. Begin using the sauna at a low temperature setting (100 F / 37 C) with the door open and for 5 minutes. (You may enter the sauna as soon as the temperature is comfortable for your mode of dress). Although the temperature will not reach 100 degrees F (37 C) when the door is open, you will still be enjoying the benefit of the far infrared rays. Start the second session with the door closed at 100 degrees (37 C). During future sessions, increase your time 3-5 minutes and temperature in increments of 1-3 degrees, as tolerated. We recommend working up to using the sauna at 125-130 degrees (51 – 54 C) for 30 minutes everyday, but it is best to consult your doctor if you are under a doctor’s care. And like cardiovascular training, you can lose your heat acclimatization if you stop using the sauna for 2-3 weeks. We suggest never using the sauna over 130 degrees. 5) What are the electrical requirements of my sauna? The two-person sauna runs from a standard 110-volt/15 amp outlet. It needs 13.8 amps so there cannot be other appliances plugged into the same circuit. The three-person sauna runs on 110-volts but requires 16.7 amps so it will require a 20 amp dedicated circuit. The four-person sauna needs a 220-volt outlet and draws 9.4 amps. 6) How is the sauna shipped? High Tech Health saunas are shipped by truck. You will be called by the trucking company prior to delivery to determine a mutually convenient time. Each sauna arrives in two large boxes delivered to your driveway. Someone needs to be present to accept and sign for the package. For ease of movement, we recommend opening the boxes where they are delivered and carrying each panel separately to the installation location for assembly.