Time-Tested Reliability
Harvia is one of the most trusted, reliable brands for personal and commercial sauna heaters. With serviceable heating elements and high-quality Finnish engineering, Harvia has proven itself time and time again.
Turn your sauna into a celebration of nature’s beauty with the Harvia Spirit SP90E 9 kW 240V/1Ph Electric Sauna Heater. The Spirit’s cage design showcases all 110 lbs. of stone, welcoming water-pouring for gentle, soothing steam.
While this design naturally optimizes airflow, it’s paired with an integrated ventilation system to create even temperatures in saunas from 177 - 494 ft3 (adj.). Better yet, these vents help cool the back of the heater for safe mounting directly on wooden walls.
This heater's external controller (not included) gives you the freedom to adjust your sauna's temperature up to 194℉ to dial in perfect sessions every time.
The Harvia Spirit SP90E Electric Sauna Heater requires a Harvia Xenio CX45 or Fenix FX45 Controller and Harvia Spirit Sauna Stones for operation. Browse the Suitable Accessories tab above to find them.
1x Harvia Spirit SP90E 9 kW Sauna Heater
1x Wall Mounting Bracket Kit and Hardware
1x Harvia Spirit SP90E Installation and Operation Manual
ATTENTION: The Harvia Spirit SP90E Sauna Heater does NOT include stones or a controller. These elements are required for operation. Browse Harvia Sauna Stones and Harvia Xenio CX45 or Fenix FX45 Controllers under Suitable Accessories at the top of this page to complete your setup.
| Model | SP90E |
| Heater Type | Electric |
| Sauna Size Range | 177 – 494 ft3 (adj.) |
| Stone Capacity | 110 lbs |
| Maximum Temperature | 194℉ |
| Kilowatt Rating | 9 kW |
| Heater Weight | 28.8 lbs |
| Shipping Weight w/ Stones | 140 lbs |
| 240V, 1 Ph Amperage | 37.5 Amps |
| 240V, 1 Ph Wire Size | 8 AWG |
| Heater Dimensions | 29.5”H × 15”W × 13.1”D |
| Safety Distances | Installation & Operation Manual |
*Reference Installation & Operation Manual for full specs/wiring diagrams/safety distances
The Harvia Spirit SP90E 9 kW Sauna Heater is recommended for saunas ranging from 177 - 494 ft3 (adj.).
Need assistance? Click the green chat button in the bottom right corner of your screen or call one of our Sauna Experts for help sizing your heater.
ATTENTION: Shipping and delivery times may increase based on seasons and holidays.
Cancellations
We will issue a 100% refund on orders canceled within 4 business days. If an order is canceled after this 4-day grace period ends, there will be a 3% cancellation fee. Please reach out to our support team if you need to cancel your order after it has shipped.
Our heaters include a 30-day return policy.
You can return this product if:
If these requirements are met, your return will be accepted. However, you will be responsible for the return shipping cost and a 20% restocking fee. After we receive the return and it has been inspected at our warehouse, we will refund the card you used for your purchase in accordance with the policy listed above.
Turn your sauna into a celebration of nature’s beauty with the Harvia Spirit SP90E 9 kW 240V/1Ph Electric Sauna Heater. The Spirit’s cage design showcases all 110 lbs. of stone, welcoming water-pouring for gentle, soothing steam.
While this design naturally optimizes airflow, it’s paired with an integrated ventilation system to create even temperatures in saunas from 177 - 494 ft3 (adj.). Better yet, these vents help cool the back of the heater for safe mounting directly on wooden walls.
This heater's external controller (not included) gives you the freedom to adjust your sauna's temperature up to 194℉ to dial in perfect sessions every time.
The Harvia Spirit SP90E Electric Sauna Heater requires a Harvia Xenio CX45 or Fenix FX45 Controller and Harvia Spirit Sauna Stones for operation. Browse the Suitable Accessories tab above to find them.
1x Harvia Spirit SP90E 9 kW Sauna Heater
1x Wall Mounting Bracket Kit and Hardware
1x Harvia Spirit SP90E Installation and Operation Manual
ATTENTION: The Harvia Spirit SP90E Sauna Heater does NOT include stones or a controller. These elements are required for operation. Browse Harvia Sauna Stones and Harvia Xenio CX45 or Fenix FX45 Controllers under Suitable Accessories at the top of this page to complete your setup.
| Model | SP90E |
| Heater Type | Electric |
| Sauna Size Range | 177 – 494 ft3 (adj.) |
| Stone Capacity | 110 lbs |
| Maximum Temperature | 194℉ |
| Kilowatt Rating | 9 kW |
| Heater Weight | 28.8 lbs |
| Shipping Weight w/ Stones | 140 lbs |
| 240V, 1 Ph Amperage | 37.5 Amps |
| 240V, 1 Ph Wire Size | 8 AWG |
| Heater Dimensions | 29.5”H × 15”W × 13.1”D |
| Safety Distances | Installation & Operation Manual |
*Reference Installation & Operation Manual for full specs/wiring diagrams/safety distances
The Harvia Spirit SP90E 9 kW Sauna Heater is recommended for saunas ranging from 177 - 494 ft3 (adj.).
Need assistance? Click the green chat button in the bottom right corner of your screen or call one of our Sauna Experts for help sizing your heater.
ATTENTION: Shipping and delivery times may increase based on seasons and holidays.
Cancellations
We will issue a 100% refund on orders canceled within 4 business days. If an order is canceled after this 4-day grace period ends, there will be a 3% cancellation fee. Please reach out to our support team if you need to cancel your order after it has shipped.
Our heaters include a 30-day return policy.
You can return this product if:
If these requirements are met, your return will be accepted. However, you will be responsible for the return shipping cost and a 20% restocking fee. After we receive the return and it has been inspected at our warehouse, we will refund the card you used for your purchase in accordance with the policy listed above.
Harvia is one of the most trusted, reliable brands for personal and commercial sauna heaters. With serviceable heating elements and high-quality Finnish engineering, Harvia has proven itself time and time again.
The Harvia Spirit will be shipped as a FedEx or UPS package. The package, or packages will be delivered to your door. You will receive a tracking number as soon as your order has been shipped out. All our shipments are fully insured. Harvia products are shipped from Chicago.
See the Installation & Operation Manual for more details.
The Harvia Spirit SP90E is suitable for home saunas up to 494 adjusted cubic feet. Use the calculator on our website or contact us if you want to verify the size of your sauna.
We'll check your order details to ensure everything's in place for your heater setup.
You'll receive an email with an estimated lead time and any manuals you'll need.
Our support team is available for any technical questions or guidance post-delivery.
Watch a video where our founder Veeti will introduce the Harvia Spirit sauna heater lineup to you.
Thank you. We have received your quote request and will contact you shortly.
Our sauna experts are here to help.
If you have any questions about Harvia, call our toll-free number (725) 777-5484 or talk us on the chat found on the bottom right corner.
Not sure about the sizing of the heater? Use our sauna heater calculator to find out.
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