Amerec Fonda 45B Fonda B Series 4.5KW Sauna Heater, Amerec

Original price was: $2,753.00.Current price is: $1,790.00.


✓ Free Shipping ($300 Savings)
✓ No Sales Tax
✓ Lowest Price Guaranteed

Industry-leading quality and engineering have made Amerec sauna heaters legendary. Showcasing the latest in technology and innovation, the Amerec Fonda 45B sauna heater generates waves of deep, penetrating heat.

As a member of Amerec’s Fonda-B Series line of sauna heaters, the Fonda 45B is engineered to provide years of exceptional performance, safety, and efficiency. The unit is equipped with a stainless-steel outer shroud, industrial-grade, stainless-steel heating elements, and a black anodized aluminum top.

The Fonda 45B heater utilizes a built-in timer and temperature control to monitor the sauna environment. Mounted on the side of the heater, the control allows the user to adjust bathing time (1-60 minutes) and temperature.

The Fonda 45B has a power rating of 4.5 kilowatts and is available in 240V and 208V single-phase and three-phase configurations. The unit is available as a wall-mounted or floor-standing sauna oven.

The Fonda 45B includes the BWT (BioWater Technique) uses an integral water tank to provide two different sauna experiences from the same heater. The Fonda used with water in the BWT provides a lower heat (140-175°F) with more humidity for a gentle sauna experience, or the Fonda can be used like a traditional sauna heater with temperatures ranging from 175-190°F with humidity adjusted by ladling water over the rocks.

The Amerec Fonda 45B features a limited lifetime warranty, and unlike cheaper imitations, is fully serviceable. Fonda-B Series sauna heaters are UL listed to ensure safety and quality.

SteamSaunaBath is proud to be an authorized Amerec partner and offer the full line of Amerec products.

We guarantee the lowest price.  If you see a lower price advertised for this item elsewhere, give us a call!

Voltage & Phase

240V/1PH (Home Use)


  • Wall-mounted (optional Floor Stand available)
  • For sauna rooms from 100 to 210 adj. cu. ft.
  • Stainless steel construction
  • Industrial grade, serviceable heating elements
  • Operates with A30 or Pure2.0 controls (no contactor needed)
  • Exceptionally large rock capacity
  • Direct rock-to-heating element contact
  • BWT ready
  • UL listed


  • Heater
  • Sauna rocks
  • Operation Manual
  • Limited Lifetime Warranty


Model Fonda 45B
Shipping Weight 85 lbs
Minimum Adjusted Cubic Feet 100
Maximum Adjusted Cubic Feet 210
Kilowatt Rating 4.5 KW
Electrical Data by Voltage/Phase Selected Heater Electrical Chart
Width 16-1/2″
Depth 11″
Height 23″



We'll help you find the perfect sauna within your budget, guiding you on space and heater choices, and assisting with affordable financing.

We promise to match or beat any competitor's price Just ask us :)

Make your dream come to life with our monthly financing options through Affirm. Now, it's 10 times more affordable, allowing you to pay over time.

100% secure payments with Stripe, Paypal or Affirm. The choice is yours!

Shop by Best Sellers

Get In Touch

Schedule a FREE 30 minute Consultation

It's important to us to go above and beyond for our clients and make sure you make the right decision for your home.