The Harvia KIP45W is a 4.5KW wall-mount electric sauna heater built for sauna rooms between 100 and 210 cubic feet. Manufactured in Finland with a stainless steel exterior and triple-wall construction, it delivers consistent, even heat in a compact, space-saving profile. UL listed and compatible with optional wall-mounted control systems including the Harvia Xenio, the KIP45W is a reliable choice for home sauna builds and light commercial installations where a smaller heater footprint is required.
Why Customers Choose This Heater
- Sized for smaller sauna rooms from 100 to 210 cubic feet
- UL listed for verified safety compliance in residential and light commercial installations
- Triple-wall construction reduces exterior surface temperatures for added safety
- Large 50 lb stone capacity supports effective heat retention and steam generation
- Stainless steel exterior is durable and well-suited to high-heat sauna environments
- Available in 240V 1-Phase and 208V 3-Phase to match your electrical service
- Designed and manufactured in Finland with a 2-year consumer warranty
- Compatible with optional Harvia Xenio WiFi control for app-based temperature management
Product Highlights
4.5KW Output for Compact Sauna Rooms
With 4.5 kilowatts of heating power, the KIP45W is appropriately sized for sauna rooms between 100 and 210 cubic feet. Selecting the correct heater size for your room volume is important for efficient heating and heater longevity.
Triple-Wall Construction
The KIP45W features triple-wall construction that reduces exterior surface temperatures during operation, providing an additional layer of safety in the sauna environment and helping to maintain required clearance distances from combustible surfaces.
Stainless Steel Exterior
The heater body is constructed from professional-grade stainless steel, which resists corrosion and holds up well in the high-humidity, high-heat conditions of a sauna room over extended use.
50 lb Stone Capacity
The KIP45W accommodates up to 50 lbs of sauna rocks (Harvia AC3000 box recommended, sold separately). Direct rock-to-heating-element contact improves thermal efficiency and supports steam generation when water is poured over the stones.
Wall-Mount Design
The compact wall-mount profile (16"W × 11"D × 24"H) keeps the sauna floor clear and allows flexible placement within the room. External control compatibility keeps the heater body uncluttered.
Optional WiFi Control Compatibility
The KIP45W is compatible with optional wall-mounted control units including the Harvia Xenio WiFi controller, which enables app-based temperature adjustment and scheduling. The control unit is sold separately and is not included.
UL Listed & Made in Finland
The KIP45W carries UL listing for verified electrical safety compliance and is designed and manufactured in Finland. It includes a 2-year warranty for consumer use.
What's in the Box
- 1 × Harvia KIP45W Electric Sauna Heater
- Installation and Operation Manual
- Warranty Documentation
Not included: Wall-mounted control unit (required — e.g., Harvia Xenio, sold separately), sauna rocks (50 lbs recommended, sold separately).
Specifications
| Model | KIP45W |
| Power Output | 4.5 kW |
| Voltage Options | 240V 1-Phase / 208V 3-Phase |
| Amperage (240V 1PH) | 18.8 Amps |
| Amperage (208V 3PH) | 12.5 Amps |
| Room Volume (Rated) | 100 to 210 cubic feet |
| Dimensions | 16"W × 11"D × 24"H |
| Heater Weight | 40 lbs |
| Shipping Weight (with stones) | 84 lbs |
| Mounting Type | Wall-mounted |
| Control System | Wall-mounted timer and thermostat required (e.g., Harvia Xenio — sold separately) |
| Stone Capacity | Up to 50 lbs (Harvia AC3000 recommended, sold separately) |
| Wire Size Required | 10 Gauge Copper |
| Construction Material | Stainless Steel |
| Certifications | UL Listed |
| Country of Manufacture | Finland |
| Warranty | 2-Year (Consumer Use) |
| Brand | Harvia |
| Series | KIP Series |
Ideal For
- Sauna rooms between 100 and 210 cubic feet
- Compact home sauna builds where a smaller heater footprint is needed
- Homeowners and contractors seeking a UL-listed heater for residential installation
- Light commercial sauna installations in spas, gyms, or wellness facilities
- Installations requiring 240V 1-Phase or 208V 3-Phase electrical service
- Builders who want optional WiFi control compatibility via the Harvia Xenio system
Important Information
- Electrical installation must be performed by a licensed electrician in accordance with local building codes and the NEC (National Electrical Code).
- A wall-mounted timer and thermostat control unit is required for operation and is sold separately. The Harvia Xenio is one compatible option. The heater will not function without a compatible control unit installed.
- Sauna rocks (50 lbs recommended) are sold separately. Harvia AC3000 stones are recommended. Do not operate the heater without stones properly loaded, as this can damage the heating elements.
- Wire size of 10 Gauge Copper is required. Use of undersized or aluminum wiring is not recommended and may create a safety hazard.
- Confirm your sauna room volume (in cubic feet) before ordering to ensure this heater is appropriately sized for your space. Oversizing or undersizing a heater affects performance and efficiency.
- Maintain the minimum clearance distances from all combustible surfaces as specified in the installation manual.
- This heater is intended for indoor sauna use only. Do not install in outdoor, wet, or unenclosed environments.
- Do not cover or obstruct the heater during operation. Keep the area around the heater clear at all times.
- Review the full installation and operation manual before beginning installation.
Frequently Asked Questions
What size sauna room is this heater designed for?
The Harvia KIP45W is rated for sauna rooms between 100 and 210 cubic feet. To calculate your room volume, multiply the interior length × width × height in feet. If your room falls outside this range, a different heater model may be more appropriate for your space.
Is a control unit included?
No. A wall-mounted timer and thermostat control unit is required for operation and is sold separately. The Harvia Xenio WiFi controller is one compatible option. The heater cannot be operated without a compatible control unit installed.
Are sauna rocks included?
No. Sauna rocks (50 lbs recommended) are sold separately. Harvia AC3000 stones are the recommended option. Do not operate the heater without the stones properly loaded, as this can damage the heating elements.
What voltage does this heater require?
The KIP45W is available in two electrical configurations: 240V 1-Phase (18.8 Amps) and 208V 3-Phase (12.5 Amps). Select the correct variant for your electrical service at checkout. Confirm your available voltage and phase with a licensed electrician before ordering.
What wire size is required?
Installation requires 10 Gauge Copper wire. All wiring must be installed by a licensed electrician in accordance with local code requirements. Use of undersized or aluminum wiring is not recommended.
Is this heater UL listed?
Yes. The Harvia KIP45W carries UL listing, confirming it has been tested and verified to meet applicable electrical safety standards for use in the United States and Canada.
What is the warranty on this heater?
The KIP45W includes a 2-year warranty for consumer use. Refer to the warranty documentation included in the box for full terms and conditions.
Can I use this heater with a WiFi control?
Yes. The KIP45W is compatible with the Harvia Xenio WiFi control unit (sold separately), which enables app-based temperature adjustment and scheduling from a smartphone. The Xenio must be purchased and installed separately.
Can I install this heater myself?
The mechanical mounting of the heater can be completed by a capable DIYer following the installation manual. However, all electrical connections must be made by a licensed electrician. Improper electrical installation is a safety hazard and may void the product warranty.
Where is this heater manufactured?
The Harvia KIP45W is designed and manufactured in Finland. Harvia is a Finnish sauna equipment manufacturer with a long history of producing sauna heaters for residential and commercial use.
The Harvia KIP45W is a well-built, UL-listed 4.5KW sauna heater suited for compact sauna rooms up to 210 cubic feet. With triple-wall construction, a large stone capacity, and optional WiFi control compatibility, it offers a solid combination of safety, performance, and flexibility for home and light commercial sauna builds. If you have questions about sizing, electrical requirements, or control compatibility, our team is available to help before you order.
This product is a sauna heating appliance intended for use in properly constructed sauna rooms. It is not a medical device and is not intended to diagnose, treat, cure, or prevent any health condition. Consult a qualified healthcare provider before use if you have any medical concerns.