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Harvia LTY45 Power Extension Unit for Xenio CX30/CX45 and Fenix FX30/FX45 Controls

Current price $600
Original price $699
Save $99
+ Free Shipping Free Delivery within the Continental US

In stock

Estimated delivery

7–12 days after you order

Usually ships by UPS or FedEx; a signature is generally not required.

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  • 2-year manufacturer warranty
Description

What is the Harvia LTY45 power extension unit?

The Harvia LTY45 (LTY45-U1-U3) is a power extension unit for Harvia's Xenio CX30 and CX45 and Fenix FX30 and FX45 sauna controls. It mounts beside the control's power unit and adds switching capacity, so one control can run a larger heater load: up to 21 kW on four supply wires or 10.5 kW on two at 240 V single-phase, or 15.6 kW at 208 V three-phase. With a CX45 at 240 V on four supply circuits, the system runs up to 38 kW. The LTY45 is always used with a Harvia control; it cannot run a heater on its own.

When do you need the Harvia LTY45?

The Harvia LTY45 is required for the Virta Pro 20 kW: Harvia's Virta Pro manual pairs that heater with a Xenio CX30 or CX45 plus the LTY45. The Virta Pro 16 kW needs it only when wired on four supply circuits; on two circuits a CX45 runs it on its own. The other Harvia heaters Topture sells run from their control without it.

Which controls does the LTY45 work with?

The Harvia LTY45 works with the Harvia Xenio CX30 and CX45 and the Harvia Fenix FX30 and FX45. It does not work with the Harvia Xenio CX170. The Combi controls, the Xenio CX30C and Fenix FX30C, are not on the LTY45's compatibility list, and no Virta Combi needs a power extension.

Where does the LTY45 go?

The Harvia LTY45 mounts on a wall outside the sauna room, near the control's power unit, in a dry place above 32°F (0°C); it must not be recessed into the wall. Harvia's LTY45 manual says only an authorized, professional electrician may make the electrical connections. Your licensed electrician sizes the breaker and wire from the manual that ships with the heater and your local code. Harvia's LTY45 manual, under Documents, shows the wiring for each control and supply.

What's Included

What's in the box with the Harvia LTY45?

  • Harvia LTY45-U1-U3 power extension unit
  • Installation instructions

What you need separately

The Harvia Xenio controls collection has the Xenio controls the LTY45 extends.

Specifications

Harvia LTY45 specifications

Harvia LTY45-U1-U3 (Harvia power extension unit instructions 28032024 Y05-0638)
Part number LTY45-U1-U3 (one unit for 240 V single-phase or 208 V three-phase)
Supply 240 V single-phase (LTY45-U1) or 208 V three-phase (LTY45-U3)
Added heater load, 240 V Up to 21 kW on four supply wires, or 10.5 kW on two
Added heater load, 208 V three-phase Up to 15.6 kW
System maximum 38 kW, with a Xenio CX45 at 240 V on four supply circuits
Works with Xenio CX30 and CX45; Fenix FX30 and FX45 (Harvia's LTY45 and Fenix/Xenio manuals). Not the Xenio CX170
Required for Harvia Virta Pro 20 kW; Virta Pro 16 kW only on four supply circuits
Mounting Wall, outside the sauna room near the control's power unit, in a dry place above 32°F (0°C)
Protection class IPX2
Dimensions 14.3" W × 2.9" D × 10.5" H (364 × 73 × 267 mm)
Weight 6.1 lb (2.75 kg)
Warranty 2-year manufacturer warranty

REAL HOMES. REAL REVIEWS.

What Topture Customers Say

Topture is rated 4.9/5 across 463 customer reviews

We thought about buying a sauna for years and finally did. We absolutely love it, especially in the winter. It’s incredibly easy to assemble with two people the whole family uses it.

Verified buyer

Ordered this sauna fall 2024 and we love it. No better feeling during a Minnesota winter. Lastly, I have to mention the customer service for this purchase has been like no other. Any questions or requests I had were addressed immediately by Topture. I got more than I expected from them and have already recommended them to several people looking for saunas. SO if you're thinking about it, JUST DO IT already..

Verified buyer

Thanks for the great service - greatly appreciated.

Verified buyer
463 Customer Reviews

Product and store reviews from Topture customers, collected by Judge.me.

Lifetime Expert Support

Same team before and after the sale, from sizing to warranty support.

Authorized Harvia Retailer

Sold by Topture, with the applicable manufacturer warranty.

Full-Value Freight Protection

Freight damage? We help coordinate the claim and replacement process.

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Frequently Asked Questions

General Topture Questions

Where are you located, and where do you ship from?

Topture is an online retailer serving customers in the contiguous United States. The company is Topture LLC, a Wyoming limited liability company, and its registered business address is 30 N Gould St, Ste N, Sheridan, WY 82801.

Orders ship from manufacturer and distributor warehouses in the U.S. and Canada, and some products ship directly from the manufacturer in Europe. Each product page shows its estimated delivery time.

How much is shipping?

Orders over $200 ship free within the continental United States. Orders under $200 carry a small shipping fee.

Two exceptions: SaunaLife and ThermaSol products carry a freight charge at any order value, and sauna stones ordered without a heater ship at $60 per box because of their weight.

Every charge is shown at checkout before you pay.

Do you provide financing?

Absolutely! To view your financing offer, simply select Shop Pay Installments as your payment method at Step 3 of checkout.

You'll need to enter a debit card to receive your offer, but don’t worry—you can still back out before completing the purchase.

How long will it take for my items to arrive?

If your order is in stock, most orders ship within 2–7 business days of purchase. Transit time then depends on the distance from the warehouse and, for freight, on booking a delivery appointment.

For custom, pre-order or made-to-order items, the estimated delivery time frame is listed on the product page. Delivery dates are estimates, so please don't book installation labor until your order has arrived and been inspected.

What happens after I place my order?

As soon as you place your order, you'll receive a confirmation email with your order details—be sure to keep it for your records. Once your order ships, you'll receive another email with tracking information.

For freight deliveries, the carrier will call or text you to schedule an appointment once the shipment reaches their local terminal. Someone needs to be there to inspect the shipment and sign for it. Smaller parcels arrive by UPS or FedEx without an appointment.

Is there a warranty?

Yes. Products purchased through Topture include the applicable manufacturer’s warranty, subject to the manufacturer’s terms. You’ll find the warranty details for each product under the "Warranty" tab on its product page, and we help with troubleshooting and warranty coordination if an issue comes up.

Do you have a showroom?

We don’t have a showroom — we sell online. Our team is available by phone, email and chat to help you compare models, sizes and heaters, and we can send dimensions, installation manuals and electrical requirements before you buy.

Where do you deliver to?

We deliver throughout the 48 contiguous states, with curbside freight delivery for large items. Free shipping and standard rates apply there only. Alaska, Hawaii, Puerto Rico, other U.S. islands and Canada are quoted separately, depending on the brand and model. We can't ship freight or oversized items to P.O. boxes.

Do you ship internationally?

International Shipping

For many products, yes, including to Canada, by custom quote. Email contact@topture.com with the product and your address before you order; availability and cost depend on the brand and model. Any duties, taxes and customs fees are your responsibility.

Shipping to Hawaii, Alaska, and Puerto Rico

Free shipping applies to the continental United States only. Shipping to Alaska, Hawaii, Puerto Rico and other U.S. islands is quoted separately and depends on the brand and model. Email contact@topture.com for a quote before you order.

Your sauna heater wiring and power, done the right way.

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  • 2-year manufacturer warranty