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Amerec Fonda B Series 4.5KW Electric Sauna Heater

ONE TIME INVESTMENT Sale price$1,649

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.

  • 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
What's Included
  • Heater
  • Sauna rocks 
  • Operation Manual
  • Limited Lifetime Warranty 



Fonda 45B

Shipping Weight

85 lbs

Minimum Adjusted Cubic Feet


Maximum Adjusted Cubic Feet


Kilowatt Rating

4.5 KW

Electrical Data by Voltage/Phase Selected

Heater Electrical Chart







Shipping Policy

The weight or packaging of this product requires delivery by special appointment, and on a wooden pallet. The driver is responsible for curbside delivery “only” and will lower the items to ground level.

We promise to do our best to get your order to you as soon as possible. We provide estimated shipping times on the product pages based upon what our suppliers and freight companies tell us, and those estimated shipping times may change or vary without notice (Due to supply chain issues, the steel mills behind on making metal, the manufacturers delayed because of the mills, the overwhelmingly demand on shipping, factory/warehouse and dock workers and so on). 

Order delays have proven to be unavoidable and outside of Komowa Wellness's control. While this might be frustrating, we ask you to please be patient and understanding with us in these tough times. We thank you for your business and appreciate your patience.

Returns & Refunds

Order Cancellations

Standard Orders

To cancel a standard order at no cost, please reach out to us before your order ships. Contact our customer service agents during business hours at 1-844-670-4946, use the chat feature located at the bottom right corner of our website, or email us at at any time. We will process your full refund as soon as we confirm the order hasn't left the warehouse.

Custom Orders

Cancellations of custom or made-to-order products are not allowed, as these items are uniquely crafted or initiated based on your order. Please note, all sales of custom and made-to-order products are final.

For these customized units, our warranty assures you will receive a product that is fully functional and operational. If you have any doubt about whether your order is a custom or made-to-order product, don't hesitate to message or call us for clarification.

Refunds and Exchanges

Standard Exchanges

Should you wish to exchange a product, you'll be responsible for covering all related shipping costs.

Return Eligibility

Only Defective Products Eligible for 100% return/exchange. Otherwise, due to rising LTL/freight shipping costs, outright returns will incur a 25% cancellation fee in addition to return shipping costs. If you are opting for a product replacement, we may be able to assist with some of the associated costs depending on the specific product size and weight.

Damaged Products

If your product arrives damaged due to issues with the delivery service, you are entitled to either a full refund or an exchange for an undamaged item at no additional cost to you. To ensure proper handling, please inspect all items upon delivery and report any damages immediately before taking possession of the shipment.

For any further queries, feel free to email us at or call us at 1-844-670-4946 during business hours.

Amerec 9054-522 Electric Sauna Heater Amerec Fonda B Series 4.5KW Electric Sauna Heater
Amerec Fonda B Series 4.5KW Electric Sauna Heater Sale price$1,649

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The Biohacker's Oasis

Picture this: After conquering your day, you step into your personal sauna oasis. As the warm steam envelops you, toxins vanish and your mind sharpens. It's not just a sauna; it's your daily reboot for peak performance. We've curated this experience for biohackers like you, blending ancient wisdom and modern tech.
It's more than wellness; it's a lifestyle upgrade.

Need help?

Frequently Asked Questions


Installation & Use

Health Considerations

Warranty & Returns