{"product_id":"huum-drop-4-5stu-pkg-drop-series-4-5kw-sauna-heater-package","title":"HUUM DROP 4.5STU Pkg DROP Series 4.5kW Sauna Heater Package","description":"\u003ch2 style=\"text-align: center;\"\u003e\n\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/XOvYxiIffyA?si=VvivaSVY4pk36dCz\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0C2Nz-_r2pQ?si=TpQ2oH5sum4YTp5_\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\n\u003c\/h2\u003e\n\u003ch2\u003eHUUM DROP 4.5STU Pkg DROP Series 4.5kW Sauna Heater Package\u003c\/h2\u003e\n\u003c!-- HUUM DROP 4.5STU Package - 4.5kW Complete Sauna Heater Package with UKU Control and Stones --\u003e\u003c!-- Wall-mounted | 240V\/1PH | 106-248 cu ft | Complete package - control + 122 lbs stones included --\u003e\u003c!-- SKU: 534-BDL-DROP45STULB | DROP Series | UKU Local Black or UKU WiFi at checkout --\u003e\u003c!-- Red Dot Award winner | Made in Estonia | 5-year warranty (elements excluded) --\u003e\u003c!-- 9 document sections: DROP IOM | DROP Install Video | DROP Elements Required | UKU IOM | UKU Diagram | UKU Video | Warranty | Stone Placement Video | Stone Requirements --\u003e\n\u003cstyle\u003e\n  .sl { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; 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padding-bottom: 1.25rem; border-bottom: 1px solid #e2e8f0; }\n  .sl-manual-item:last-child { margin-bottom: 0; padding-bottom: 0; border-bottom: none; }\n  .sl-manual-item h6 { font-size: 14px; font-weight: 700 !important; color: #0f172a !important; margin: 0 0 0.5rem; }\n  .sl-doc-link { display: inline-flex; align-items: center; gap: 7px; font-size: 14px; font-weight: 500; color: #4a5568; background: #fff; border: 1px solid #d1d5db; border-radius: 5px; padding: 8px 14px; text-decoration: none; }\n  .sl-doc-link:hover { background: #e8f0fa; border-color: #bfd4ef; color: #2563a8; }\n  .sl-divider { border: none; border-top: 1px solid #e2e8f0; margin: 1.75rem 0; }\n  @media (max-width: 768px) {\n    .sl-feat-grid { grid-template-columns: 1fr 1fr; }\n    .sl-spec-grid { grid-template-columns: 1fr; gap: 1.5rem; }\n    .sl-brand1, .sl-brand2 { grid-template-columns: 1fr; gap: 1rem; padding: 1rem 0; }\n    .sl-brand2 { display: flex; flex-direction: column-reverse; }\n    .sl-brand1 h4, .sl-brand2 h4 { font-size: 18px !important; }\n  }\n  @media (max-width: 480px) {\n    .sl { padding: 0; }\n    .sl-feat-grid { grid-template-columns: 1fr; gap: 8px; }\n    .sl-feat { padding: 0.8rem 0.9rem; }\n    .sl-inc-grid { grid-template-columns: 1fr; }\n    .sl-spec-grid { gap: 1.25rem; }\n    .sl-spec-table, .sl-spec-table tbody, .sl-spec-table tr, .sl-spec-table td { display: block; width: 100%; }\n    .sl-spec-table { border: none; }\n    .sl-spec-table tr { border: 1px solid #e2e8f0; border-radius: 6px; margin-bottom: 6px; padding: 8px 12px; background: #fff !important; }\n    .sl-spec-table tr:nth-child(odd) { background: #f8fafc !important; }\n    .sl-spec-table td { border: none; padding: 1px 0; }\n    .sl-spec-table td:first-child { font-size: 10px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: #64748b; width: 100%; padding-bottom: 2px; }\n    .sl-spec-table td:last-child { font-size: 15px; font-weight: 700 !important; color: #0f172a !important; width: 100%; word-wrap: break-word; overflow-wrap: break-word; }\n    .sl-divider { margin: 1.25rem 0; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"sl\"\u003e\n\u003cdiv class=\"sl-desc\"\u003e\n\u003cp\u003eThe HUUM DROP 4.5STU Package is a complete sauna heater package for rooms from 106 to 248 cubic feet, including the award-winning DROP 4.5kW wall-mounted heater, UKU sauna control (Local or WiFi - selected at checkout), and 122 lbs of rounded olivine diabase sauna stones. Everything needed to operate the heater arrives together - no separate stone or control purchase required. The DROP 4.5kW is HUUM's entry in the DROP series: the same water-droplet-inspired stainless steel body and 122-lb stone capacity as all DROP models, at 4.5kW for the 106-248 cu ft room range on a standard 240V\/1-phase, 30A circuit.\u003c\/p\u003e\n\u003ch4\u003eThe DROP design - water drop form, Red Dot Award winner, 122 lbs of stone\u003c\/h4\u003e\n\u003cp\u003eThe HUUM DROP sauna heater is designed in the shape of a water droplet - a rounded, organic form that softens the angular lines of a traditional sauna interior and makes the heater itself a design feature of the room. Winner of the prestigious Red Dot Award for product design, the DROP combines sculptural aesthetics with a specific and deliberate engineering outcome: an exceptionally large stone capacity relative to its compact wall-mounted form. At 122 lbs (55 kg) of rounded olivine diabase stones, the DROP holds more stone mass than most conventional wood-burning stoves. More stone mass means more thermal capacity - the stones store more heat during the warm-up cycle, release it more slowly and evenly during the session, and produce softer, longer-lasting steam when water is ladled over them. The result is a more consistent bathing temperature, milder steam character, and a longer effective session before the stones lose heat.\u003c\/p\u003e\n\u003ch4\u003eWhy stone mass matters - and why HUUM rounds it differently\u003c\/h4\u003e\n\u003cp\u003eThe character of loyly steam - its softness, duration, and intensity - is directly related to the stone mass carrying the heat. A heater with a small stone load produces sharp, quick steam that dissipates rapidly; a heater with a large stone load produces a gentler, longer wave of steam that spreads through the room rather than concentrating at the ladle point. The DROP's 122-lb capacity is the characteristic that makes it perform above its output class. HUUM also specifies rounded olivine stones specifically for the DROP - the rounded form allows denser packing within the basket, better water flow between stones when ladling, and milder steam production compared to angular crushed stones. The 4 boxes of rounded olivine diabase included in this package are the correct specification for the DROP 4.5.\u003c\/p\u003e\n\u003ch4\u003eUKU control - Local or WiFi, selected at checkout\u003c\/h4\u003e\n\u003cp\u003eThe package includes the UKU Local Black control as standard, with UKU WiFi available as an upgrade at checkout. The UKU Local Black is a digital sauna control that mounts on the sauna wall or changing room wall, operates the heater on\/off and temperature, and provides timer and safety functions from the panel buttons. The UKU WiFi version adds HUUM app connectivity for iOS and Android - remote preheat from anywhere, session scheduling, and temperature monitoring from a phone before arriving at the sauna. Both UKU variants are compatible with the DROP 4.5kW without any additional extension box (the UKU Extension Box is only required for heaters over 11kW). The UKU control is mounted outside the sauna room or at the correct safety distance from the heater if inside.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-hook\"\u003eComplete 4.5kW wall-mounted sauna heater package for rooms from 106 to 248 cubic feet. Includes DROP 4.5kW heater, UKU control (Local Black or WiFi - select at checkout), and 122 lbs of rounded olivine diabase stones (4 boxes). Red Dot Award-winning water-droplet design. 122 lbs stone capacity - more than most wood-burning stoves - for soft, consistent, long-lasting steam. Direct stone-to-element contact for even heat. Stainless steel construction. 240V \/ 1-phase. 30A breaker, 10 AWG wire. Max 230°F. 2\" safety clearance all sides. SGS Listed. 5-year warranty (elements excluded). Made in Estonia by HUUM.\u003c\/div\u003e\n\u003cdiv class=\"sl-badges\"\u003e\n\u003cspan class=\"sl-badge\"\u003eComplete package - control + 122 lbs stones included\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e4.5 kW\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e106 to 248 cu ft\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eRed Dot Award-winning design\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eWater-droplet inspired form\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e122 lb stone capacity - 4 boxes olivine included\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eMore stone mass than most wood-burning stoves\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eSoft consistent steam - rounded olivine diabase\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eUKU Local Black or UKU WiFi - select at checkout\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eHUUM app - iOS and Android (WiFi variant)\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e240V \/ 1-phase - 30A breaker - 10 AWG\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eStainless steel - made in Estonia\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eSGS Listed\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e5-year warranty (elements excluded)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003chr class=\"sl-divider\"\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"sl-spec-grid\"\u003e\n\u003cdiv class=\"sl-spec-tables\"\u003e\n\u003cdiv class=\"sl-spec-block\"\u003e\n\u003ch4\u003eElectrical\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower output\u003c\/td\u003e\n\u003ctd\u003e4.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e240V \/ 1-phase \/ 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmperage draw\u003c\/td\u003e\n\u003ctd\u003e18.75 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCircuit breaker required\u003c\/td\u003e\n\u003ctd\u003e30 A (standard 2-pole - no GFI\/GFCI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire gauge\u003c\/td\u003e\n\u003ctd\u003e10 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eSGS Listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-spec-block\"\u003e\n\u003ch4\u003eRoom sizing and stones\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoom volume\u003c\/td\u003e\n\u003ctd\u003e106 to 248 cu ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone capacity\u003c\/td\u003e\n\u003ctd\u003e122 lbs (55 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStones included\u003c\/td\u003e\n\u003ctd\u003eYes - 4 boxes rounded olivine diabase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone size\u003c\/td\u003e\n\u003ctd\u003e2\" to 4\" (5-10 cm) rounded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax temperature\u003c\/td\u003e\n\u003ctd\u003e230°F (110°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-spec-block\"\u003e\n\u003ch4\u003ePhysical\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (W x D x H)\u003c\/td\u003e\n\u003ctd\u003e15.4\" x 13.2\" x 23.3\" (390 x 335 x 590 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeater weight\u003c\/td\u003e\n\u003ctd\u003e24 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eWall-mounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety clearance\u003c\/td\u003e\n\u003ctd\u003e2\" all sides\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eMade in Estonia by HUUM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-spec-image\"\u003e\n\u003cdiv class=\"sl-spec-block\"\u003e\n\u003ch4\u003eControl options - select at checkout\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUKU Local Black\u003c\/td\u003e\n\u003ctd\u003eWall-mounted digital control - on-site operation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUKU WiFi\u003c\/td\u003e\n\u003ctd\u003eAdds HUUM app remote preheat and scheduling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApp\u003c\/td\u003e\n\u003ctd\u003eHUUM app - iOS and Android (WiFi variant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUKU Extension Box required\u003c\/td\u003e\n\u003ctd\u003eNo - only needed for heaters over 11kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-spec-block\"\u003e\n\u003ch4\u003eDROP series stone advantage\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone capacity\u003c\/td\u003e\n\u003ctd\u003e122 lbs - more than most wood-burning stoves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone type\u003c\/td\u003e\n\u003ctd\u003eRounded olivine diabase - 2\"-4\" (5-10 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSteam character\u003c\/td\u003e\n\u003ctd\u003eSoft, consistent, long-lasting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElement contact\u003c\/td\u003e\n\u003ctd\u003eDirect stone-to-element for even heat distribution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-spec-block\"\u003e\n\u003ch4\u003eWarranty and awards\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e5 years (elements excluded)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesign award\u003c\/td\u003e\n\u003ctd\u003eRed Dot Award winner - product design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesign inspiration\u003c\/td\u003e\n\u003ctd\u003eWater droplet form\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr class=\"sl-divider\"\u003e\n\u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003cdiv class=\"sl-inc-grid\"\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eHUUM DROP 4.5kW wall-mounted sauna heater - stainless steel\u003c\/div\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eUKU sauna control (Local Black or WiFi - selected at checkout)\u003c\/div\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eRounded olivine diabase sauna stones - 4 boxes (122 lbs)\u003c\/div\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eWall mount bracket and hardware\u003c\/div\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eInstallation and operation manual\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 1rem; font-weight: 500; color: #64748b; font-size: 14px;\"\u003e\u003cstrong\u003eOptional accessories (sold separately):\u003c\/strong\u003e HUUM safety railing (recommended), HUUM Drip Tray, HUUM Flange D (for bench embedding). A licensed electrician is required for all electrical connections.\u003c\/p\u003e\n\u003chr class=\"sl-divider\"\u003e\n\u003ch3\u003eWhy the HUUM DROP 4.5STU Package stands out\u003c\/h3\u003e\n\u003cdiv class=\"sl-feat-grid\"\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003e122 lbs of stone - more than most wood-burning stoves\u003c\/div\u003e\n\u003cp\u003eThe DROP's 122-lb stone capacity is its defining engineering achievement. For a compact wall-mounted electric heater, this stone load is exceptional - most wood-burning stoves carry less. More thermal mass means slower, softer steam release, a more consistent bathing temperature, and longer effective sessions. The DROP's stone-to-element contact ensures direct, even heat transfer throughout the full stone load.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eRed Dot Award design - water drop form\u003c\/div\u003e\n\u003cp\u003eWinner of Europe's prestigious Red Dot Award for product design, the DROP's water-droplet shape is not a styling exercise but a structural form that allows the specific rounded basket geometry needed for its large stone capacity. The organic, rounded body softens the angular interior of a traditional sauna room and makes the heater itself the visual centrepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eComplete package - nothing missing\u003c\/div\u003e\n\u003cp\u003eDROP 4.5kW heater, UKU control, and 4 boxes of rounded olivine stones all included. No separate stone sourcing, no separate control purchase. The correct stone type and quantity for the DROP 4.5 are pre-specified - rounded olivine diabase at 2\"-4\" for optimal steam character and stone density within the DROP basket.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eRounded olivine diabase stones - softer steam\u003c\/div\u003e\n\u003cp\u003eHUUM specifies rounded olivine diabase specifically for the DROP. Rounded stones pack more densely, allow better water flow between them when ladling, and produce milder, more consistent steam than angular crushed stones. Olivine diabase is a thermally stable volcanic stone that handles repeated heating and water contact without cracking or spalling. The correct stone is as important as the correct heater for the quality of the sauna experience.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eUKU WiFi option - preheat from anywhere\u003c\/div\u003e\n\u003cp\u003eUpgrading to UKU WiFi at checkout adds HUUM app control on iOS and Android. Preheat the sauna on the way home, set a scheduled start for a regular sauna time, and monitor the current temperature from anywhere. For bathers who want the sauna ready the moment they arrive without needing to plan 30-60 minutes in advance, the WiFi option removes that constraint entirely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003e30A \/ 10 AWG - standard residential circuit\u003c\/div\u003e\n\u003cp\u003eThe DROP 4.5kW runs on a standard 240V\/1-phase, 30A circuit with 10 AWG wire - a common residential specification that does not require a dedicated 40A or higher circuit. For new sauna rooms in homes where the electrical panel has capacity for a 30A double-pole breaker, the DROP 4.5 is the practical choice for the 106-248 cu ft range with no special panel upgrade required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr class=\"sl-divider\"\u003e\n\u003ch3\u003eAbout HUUM\u003c\/h3\u003e\n\u003cdiv class=\"sl-brand1\"\u003e\n\u003cimg class=\"sl-brand-img\" src=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2022-11\/DropPKG1.jpg\" alt=\"HUUM DROP 4.5kW sauna heater package with UKU control and rounded olivine stones - Red Dot Award design\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"sl-brand-tag\"\u003eMade in Estonia - Red Dot Award winner\u003c\/span\u003e\n\u003ch4\u003eHUUM DROP. The award-winning water-drop heater that carries more stone mass than most wood-burning stoves.\u003c\/h4\u003e\n\u003cp\u003eHUUM is an Estonian sauna heater company founded on a single design principle: that electric sauna heaters should produce the same quality of steam experience as traditional wood-burning stoves, and that they should be beautiful objects in the sauna room. The DROP is the product that defines HUUM - its Red Dot Award-winning form, its 122-lb stone capacity, and its direct element-to-stone contact engineering are all in service of a single goal: soft, even, long-lasting loyly from a wall-mounted electric heater. The DROP 4.5STU Package includes everything needed to install and operate the heater - the DROP 4.5kW, the UKU control, and the correct stones. We are an authorized HUUM dealer.\u003c\/p\u003e\n\u003cul class=\"sl-check\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete package\u003c\/strong\u003e - DROP 4.5kW, UKU control, and 122 lbs rounded olivine stones\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.5kW, 106-248 cu ft\u003c\/strong\u003e - 240V\/1PH, 30A breaker, 10 AWG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e122 lb stone capacity\u003c\/strong\u003e - more than most wood-burning stoves\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRed Dot Award design\u003c\/strong\u003e - water-droplet form, stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUKU Local or WiFi at checkout\u003c\/strong\u003e - 5-year warranty (elements excluded)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-brand2\" style=\"text-align: start;\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"sl-brand-tag\"\u003eDROP series - four output levels\u003c\/span\u003e\n\u003ch4\u003eDROP 4.5 vs DROP 6 vs DROP 7.5 vs DROP 9 - choosing the right output\u003c\/h4\u003e\n\u003cp\u003eThe DROP series is available in four output levels. DROP 4.5kW covers 106-248 cu ft on a 30A circuit. DROP 6kW covers 177-318 cu ft on a 30A circuit. DROP 7.5kW covers 248-389 cu ft on a 40A circuit. DROP 9kW covers 318-460 cu ft on a 50A circuit. All four models share the same external body dimensions and 122-lb stone capacity - the physical size of the heater does not change between output levels, only the number of heating elements inside the cage. To select the correct output, calculate the adjusted cubic footage of the sauna room - accounting for cold surfaces such as glass walls, tile floors, and natural stone or masonry panels, which require added output to compensate. Use HUUM's online calculator or contact BathingBrands for sizing guidance.\u003c\/p\u003e\n\u003cp\u003eA licensed electrician is required for all electrical connections. Do not connect to a GFI\/GFCI breaker. The UKU Extension Box is not required for the DROP 4.5, 6, 7.5, or 9kW models - it is only needed for HUUM heaters over 11kW. The optional HUUM safety railing is recommended for all DROP installations to prevent contact with the hot heater body.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cimg class=\"sl-brand-img\" src=\"https:\/\/mediriser.com\/cdn\/shop\/files\/huum-DROP-blue-guard_3.jpg?v=1778939812\u0026amp;width=800\" alt=\"HUUM DROP series 4.5kW 6kW 7.5kW 9kW comparison showing same body size with different output elements inside\" style=\"margin-bottom: 16px; float: none;\"\u003e\n\u003c\/div\u003e\n\u003chr class=\"sl-divider\"\u003e\n\u003ch3\u003eManuals and Documents\u003c\/h3\u003e\n\u003cdiv class=\"sl-manual\"\u003e\n\u003cdiv class=\"sl-manual-item\"\u003e\n\u003ch6\u003eDROP Installation and Operation Manual\u003c\/h6\u003e\n\u003ca class=\"sl-doc-link\" href=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2025-11\/HUUM-DROP-Sauna-Heater-IOM.pdf\" target=\"_blank\"\u003e \u003csvg stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"14\" width=\"14\"\u003e\u003cpath d=\"M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"14 2 14 8 20 8\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e DROP Installation and Operation Manual (PDF\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-manual-item\"\u003e\n\u003ch6\u003eDROP Elements Required\u003c\/h6\u003e\n\u003ca class=\"sl-doc-link\" href=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2022-03\/HUUM%20Elements%20Required.pdf\" target=\"_blank\"\u003e \u003csvg stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"14\" width=\"14\"\u003e\u003cpath d=\"M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"14 2 14 8 20 8\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e DROP Elements Required (PDF) \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-manual-item\"\u003e\n\u003ch6\u003eUKU Installation and Operation Manual\u003c\/h6\u003e\n\u003ca class=\"sl-doc-link\" href=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2025-12\/HUUM-UKU-Control-IOM.pdf\" target=\"_blank\"\u003e \u003csvg stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"14\" width=\"14\"\u003e\u003cpath d=\"M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"14 2 14 8 20 8\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e UKU Installation and Operation Manual (PDF) \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-manual-item\"\u003e\n\u003ch6\u003eUKU Installation Diagram\u003c\/h6\u003e\n\u003ca class=\"sl-doc-link\" href=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2025-05\/HUUM-UKU-Installation-Diagram.pdf\" target=\"_blank\"\u003e \u003csvg stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"14\" width=\"14\"\u003e\u003cpath d=\"M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"14 2 14 8 20 8\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e UKU Installation Diagram (PDF) \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-manual-item\"\u003e\n\u003ch6\u003eWarranty\u003c\/h6\u003e\n\u003ca class=\"sl-doc-link\" href=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2025-09\/HUUM-Warranty.pdf\" target=\"_blank\"\u003e \u003csvg stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"14\" width=\"14\"\u003e\u003cpath d=\"M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"14 2 14 8 20 8\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e Warranty Information (PDF) \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-manual-item\"\u003e\n\u003ch6\u003eStone Placement Video\u003c\/h6\u003e\n\u003ca class=\"sl-doc-link\" href=\"https:\/\/youtu.be\/-6fJDlij0v0\" target=\"_blank\"\u003e \u003csvg stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"14\" width=\"14\"\u003e\u003cpath d=\"M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6\"\u003e\u003c\/path\u003e\u003cpolyline points=\"15 3 21 3 21 9\"\u003e\u003c\/polyline\u003e\u003cline y2=\"3\" x2=\"21\" y1=\"14\" x1=\"10\"\u003e\u003c\/line\u003e\u003c\/svg\u003e Stone Placement Video \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-manual-item\"\u003e\n\u003ch6\u003eStone Requirements\u003c\/h6\u003e\n\u003ca class=\"sl-doc-link\" href=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2025-12\/-HUUM-Stone-Requirements.pdf\" target=\"_blank\"\u003e \u003csvg stroke-width=\"2\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"14\" width=\"14\"\u003e\u003cpath d=\"M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"14 2 14 8 20 8\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e Stone Requirements (PDF) \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cdiv class=\"sl-warranty\"\u003e\n\u003ch5\u003e5-year limited warranty (elements excluded)\u003c\/h5\u003e\n\u003cp\u003eThe HUUM DROP 4.5STU Package is covered by HUUM's \u003cstrong\u003e5-year limited warranty\u003c\/strong\u003e from the date of purchase. The warranty covers defects in manufacturing and materials under normal use conditions. Heating elements are excluded from the 5-year coverage and carry their own separate warranty period. The warranty does not cover damage caused by improper installation, use of incorrect or non-approved stones, operating the heater without the required stone load, or failure to follow HUUM's installation and operating guidelines. A licensed electrician is required for all electrical connections. Do not connect to a GFI\/GFCI breaker. Proof of purchase from an authorized HUUM dealer is required. We are an authorized HUUM dealer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"UKU Local Bank","offer_id":52245876670746,"sku":"534-BDL-DROP45STULB","price":2198.0,"currency_code":"USD","in_stock":true},{"title":"UKU Local w\/Wood Case","offer_id":52245876703514,"sku":"534-BDL-DROP45STULB+WD","price":2506.0,"currency_code":"USD","in_stock":true},{"title":"UKU Local w\/White Case","offer_id":52245876736282,"sku":"534-BDL-DROP45STULB+WH","price":2417.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wifi Black","offer_id":52245876769050,"sku":"534-BDL-DROP45STUWB","price":2616.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wifi Mirror","offer_id":52245876801818,"sku":"534-BDL-DROP45STUWB+MR","price":3586.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wifi w\/Wood Case","offer_id":52245876834586,"sku":"534-BDL-DROP45STUWB+WD","price":2924.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wifi w\/White Case","offer_id":52245876867354,"sku":"534-BDL-DROP45STUWB+WH","price":2835.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wifi Glass","offer_id":52245876900122,"sku":"534-BDL-DROP45STUWG","price":3113.0,"currency_code":"USD","in_stock":true},{"title":"UKU Wifi Gold","offer_id":52245876932890,"sku":"534-BDL-DROP45STUWGD","price":3586.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/1690\/0634\/files\/DropPKG1.jpg?v=1778933531","url":"https:\/\/mediriser.com\/products\/huum-drop-4-5stu-pkg-drop-series-4-5kw-sauna-heater-package","provider":"Mediriser","version":"1.0","type":"link"}