866-861-6317
Ask an Expert
HUUM UKU Extension Box for Heaters over 9kW
RecovAthlete's 120% Price Match Guarantee: Shop With Unmatched Confidence
At RecovAthlete, we’re here to support your recovery and performance goals—without overpaying. Our 120% Price Match Guarantee makes sure you always get the best deal. If you find a lower price, not only will we match it, we’ll beat it by adding 20% of the price difference back to your refund.
How It Works:
- 60-Day Window: If you find the same item at a lower price from an authorized competitor within 60 days of your purchase, we’ll match it.
- We Add 20%: Besides matching the price, we give you 20% of the difference back.
- Same Currency: Price comparisons must be in the same currency as your original purchase.
- MAP Policy Required: The competitor must be an authorized dealer of the product and follow a Minimum Advertised Price (MAP) policy set by the manufacturer.
Terms and Conditions:
- Eligible Products: Must be the same model, SKU, and from an authorized seller.
- Verifiable Prices: We compare total verifiable selling prices (excluding taxes), including shipping.
- Manual Review: Our team reviews all claims for validity and eligibility.
Exclusions:
- Used, refurbished, or secondary-market products
- Wholesale, contract, or below-cost pricing
- Marketplace sellers (Amazon, Walmart, Costco, etc.)
- Flash sales, closeouts, clearance, or limited-time promos
- Price matches can’t be combined with other RecovAthlete discounts or offers
Our Ethical Pricing Pledge
We don’t undercut manufacturers or sell below cost. We follow ethical pricing standards prioritizing fairness, brand integrity, and long-term trust.
How to Submit a Claim:
- Get Proof: A screenshot, ad, or live link showing the competitor's lower price.
- Send Details: Include your order number, the product name, and the competitor info.
- Submit via Contact Page: [RecovAthlete Contact Us]
- Processing: Allow up to 6 weeks for verification and refund processing.
- With our 120% Price Match Guarantee, you can shop knowing you’ll never miss out on a better deal—because we’ll beat it.
🛒 Why Shop With Us?
- Free Shipping on Most Orders: Clear and upfront — no hidden surprises.
- 120% Price Match Guarantee: We refund the difference plus 20% extra if you find a better price.
- Fast, Friendly Support: Quick responses by chat, email, or phone — even after-hours.
- Vetted Brands Only: Every product we sell is handpicked for quality and reliability.
- Warranty Protection: All products are backed by manufacturer warranties.
- Financing Available: Flexible options like Shop Pay and Affirm make buying easy.
Welcome to RecovAthlete! This Shipping & Returns Policy is part of our Terms of Service, governing your use of our site and purchase of our products. Please read this policy carefully before making a purchase. By placing an order with RecovAthlete, operated by New Age Digital LLC (“we,” “us,” or “our”), you agree to the following terms and conditions.
Saunum Product Warranty Information
At Saunum, we are committed to delivering high-quality products designed to enhance your sauna experience. Our warranty ensures that Saunum products are free from material and manufacturing defects during the specified warranty period. If a defect occurs within this period due to poor-quality materials or assembly, our recommended repair partners will repair or replace the defective component or device free of charge for both labor and spare parts, subject to the terms and conditions outlined below.
Warranty Terms and Conditions
- Valid Warranty Claims:
To process a warranty claim, you must provide a completed installation report. - Warranty Coverage Periods:
- Saunum's Discretion:
Saunum reserves the right to repair the defective component, replace it, or replace the entire device. Any replaced defective components remain the property of Saunum.
Damages:
Please inspect the packaging of your item(s) when they arrive, if you notice any damage you should make note of it when signing for delivery. If your item(s) do arrived damaged, please send photos to info@recovathlete.com and we will process an insurance claim on your behalf.
Ships within 7 business days | Free Shipping
- Regular price
- $603.00
- Regular price
-
$625.00 - Sale price
- $603.00
- Unit price
- per
Save $22.00
Save $22.00 USD
Shipping Free
7
RecovAthlete's 120% Price Match Guarantee: Shop With Unmatched Confidence
At RecovAthlete, we’re here to support your recovery and performance goals—without overpaying. Our 120% Price Match Guarantee makes sure you always get the best deal. If you find a lower price, not only will we match it, we’ll beat it by adding 20% of the price difference back to your refund.
How It Works:
- 60-Day Window: If you find the same item at a lower price from an authorized competitor within 60 days of your purchase, we’ll match it.
- We Add 20%: Besides matching the price, we give you 20% of the difference back.
- Same Currency: Price comparisons must be in the same currency as your original purchase.
- MAP Policy Required: The competitor must be an authorized dealer of the product and follow a Minimum Advertised Price (MAP) policy set by the manufacturer.
Terms and Conditions:
- Eligible Products: Must be the same model, SKU, and from an authorized seller.
- Verifiable Prices: We compare total verifiable selling prices (excluding taxes), including shipping.
- Manual Review: Our team reviews all claims for validity and eligibility.
Exclusions:
- Used, refurbished, or secondary-market products
- Wholesale, contract, or below-cost pricing
- Marketplace sellers (Amazon, Walmart, Costco, etc.)
- Flash sales, closeouts, clearance, or limited-time promos
- Price matches can’t be combined with other RecovAthlete discounts or offers
Our Ethical Pricing Pledge
We don’t undercut manufacturers or sell below cost. We follow ethical pricing standards prioritizing fairness, brand integrity, and long-term trust.
How to Submit a Claim:
- Get Proof: A screenshot, ad, or live link showing the competitor's lower price.
- Send Details: Include your order number, the product name, and the competitor info.
- Submit via Contact Page: [RecovAthlete Contact Us]
- Processing: Allow up to 6 weeks for verification and refund processing.
- With our 120% Price Match Guarantee, you can shop knowing you’ll never miss out on a better deal—because we’ll beat it.
🛒 Why Shop With Us?
- Free Shipping on Most Orders: Clear and upfront — no hidden surprises.
- 120% Price Match Guarantee: We refund the difference plus 20% extra if you find a better price.
- Fast, Friendly Support: Quick responses by chat, email, or phone — even after-hours.
- Vetted Brands Only: Every product we sell is handpicked for quality and reliability.
- Warranty Protection: All products are backed by manufacturer warranties.
- Financing Available: Flexible options like Shop Pay and Affirm make buying easy.
Welcome to RecovAthlete! This Shipping & Returns Policy is part of our Terms of Service, governing your use of our site and purchase of our products. Please read this policy carefully before making a purchase. By placing an order with RecovAthlete, operated by New Age Digital LLC (“we,” “us,” or “our”), you agree to the following terms and conditions.
Saunum Product Warranty Information
At Saunum, we are committed to delivering high-quality products designed to enhance your sauna experience. Our warranty ensures that Saunum products are free from material and manufacturing defects during the specified warranty period. If a defect occurs within this period due to poor-quality materials or assembly, our recommended repair partners will repair or replace the defective component or device free of charge for both labor and spare parts, subject to the terms and conditions outlined below.
Warranty Terms and Conditions
- Valid Warranty Claims:
To process a warranty claim, you must provide a completed installation report. - Warranty Coverage Periods:
- Saunum's Discretion:
Saunum reserves the right to repair the defective component, replace it, or replace the entire device. Any replaced defective components remain the property of Saunum.
Damages:
Please inspect the packaging of your item(s) when they arrive, if you notice any damage you should make note of it when signing for delivery. If your item(s) do arrived damaged, please send photos to info@recovathlete.com and we will process an insurance claim on your behalf.
✓ Required for: HUUM Hive Mini 10.5kW and HUUM Hive 6–10.5kW
HUUM UKU Extension Box for Heaters Over 9kW: The required electrical component for Hive Mini 10.5kW and HUUM Hive 6–10.5kW models
Many buyers discover they need the extension box after ordering a Hive heater. Order it now alongside your heater and controller — one less delay when the electrician arrives.
Required for the HUUM Hive Mini 10.5kW and all HUUM Hive electric models (6kW through 10.5kW). Not required for Drop, Steel, Cliff, or Hive Mini 6kW and 9kW.
Why Buy From RecovAthlete
We're an authorized HUUM dealer. We confirm which extension box your heater requires before the order ships.
Not sure if you need it? Call 866-861-6317 — we confirm in one minute.
"Order the extension box now — discovering it's missing on installation day adds delay and frustration."
Best For
- HUUM Hive Mini 10.5kW buyers
- HUUM Hive 6kW, 9kW, and 10.5kW buyers
Not Ideal For
- HUUM Drop, Steel, or Cliff heaters — not required
- HUUM Hive Mini 6kW or 9kW — not required
- HUUM Hive 12kW, 15kW, or 18kW — those require the 10.5kW+ extension box
What You're Getting
- Required component — order it with the heater, not after.
- Works with both UKU WiFi and UKU Local controllers.
- Included in all Hive Mini and Hive Package bundles.
Specifications
| Required For | HUUM Hive Mini 10.5kW; HUUM Hive 6kW, 9kW, 10.5kW |
| Not Required For | Drop, Steel, Cliff (all kW); Hive Mini 6kW, 9kW |
| Works With | UKU WiFi and UKU Local controllers |
| Lead Time | Typically ships within 1–5 business days |
| Made in | Estonia |
How It Compares
| Heater | Extension Box Needed? | Which Box? | |
|---|---|---|---|
| Drop, Steel, Cliff (all kW) | No | — | |
| Hive Mini 6kW, 9kW | No | — | |
| Hive Mini 10.5kW | Yes | This listing | |
| Hive 6–10.5kW | Yes | This listing | |
| Hive 12kW, 15kW, 18kW | Yes | 10.5kW+ box (separate) |
Complete the Setup
- HUUM UKU WiFi Sauna Controller →The controller this extension box pairs with
- HUUM Hive Mini Electric Sauna Heater →Hive Mini 10.5kW requires this box
- HUUM Hive Package w/ UKU + Extension Box + Stones →Extension box included in this complete bundle
Frequently Asked Questions
Do I need this for the Hive Mini 9kW?
No — only the Hive Mini 10.5kW requires it.
Is this included in the Hive Mini or Hive packages?
Yes — both packages include the extension box. This listing is for buyers purchasing components separately.
Is this the same as the extension box for heaters over 10.5kW?
No. This box covers 9kW to 10.5kW heaters. The Hive 12kW, 15kW, and 18kW require the separate 10.5kW+ extension box.
Let customers speak for us
Have Questions? Talk to Our Equipment Team.
We respond within 2 hours.
US & Canada shipping. Financing available.
- Choosing a selection results in a full page refresh.