{"product_id":"huum-hive-12-hive-series-12-0kw-sauna-heater","title":"HUUM HIVE 12 HIVE Series 12.0kW Sauna Heater","description":"\u003c!-- HUUM HIVE 12 - 12kW Floor-Standing Sauna Heater, Beehive Cage Form - Standalone --\u003e\u003c!-- SKU: H1003012 | HIVE Series | 424-636 cu ft | Floor-standing beehive cage | Heater only --\u003e\u003c!-- UKU control + UKU Extension Box + 528 lbs stones all sold separately --\u003e\u003c!-- Dual 30A circuits \/ 10 AWG | SGS Listed | Made in Estonia | 5-year warranty (elements excluded) --\u003e\u003c!-- 6 document sections: IOM | Warranty | Element Requirements | Stone Requirements | Certificate of Compliance | Size Your Sauna --\u003e\n\u003cstyle\u003e\n  .sl { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: #1a2a3a; max-width: 900px; margin: 0 auto; line-height: 1.6; }\n  .sl * { box-sizing: border-box; }\n  .sl h4 { font-weight: 700 !important; color: #0f172a !important; margin: 1.5rem 0 0.5rem; line-height: 1.3; 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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\u003ch2\u003eHUUM HIVE 12 HIVE Series 12.0kW Sauna Heater\u003c\/h2\u003e\n\u003cp\u003eThe HUUM HIVE 12 is a 12kW floor-standing electric sauna heater for rooms from 424 to 636 cubic feet, with the distinctive open beehive cage form. This listing is the heater only. A UKU control unit, UKU Extension Box, and sauna stones are all required for operation and sold separately. The HIVE 12 is the lower-output model in the HUUM HIVE floor-standing series - the entry point to the full-size HIVE beehive for rooms from 424 to 636 cubic feet on a dual 30A \/ 10 AWG circuit configuration. The UKU Extension Box is required at 12kW and must be purchased alongside the control and stones when ordering this standalone heater. For a complete installation in a single purchase, see the HUUM HIVE 12STU Package at BathingBrands.\u003c\/p\u003e\n\u003ch4\u003eThe HIVE design - open beehive cage, 528 lbs of stone\u003c\/h4\u003e\n\u003cp\u003eThe HUUM HIVE is a floor-standing electric sauna heater with an open hexagonal cage structure - the beehive form that gives the series its name. The cage is 18.11\" (460 mm) in diameter and contains a central heating element column surrounded by 528 lbs of 2\"-4\" (5-10 cm) rounded olivine diabase stones. The open cage structure allows the full stone mass to be visible from all angles and lets heat and steam radiate from the stone surface throughout the full circumference of the heater. The HIVE's large stone capacity - 528 lbs at 12kW - provides substantial thermal mass that sustains heat and produces soft, long-lasting steam through extended sessions and back-to-back use. The visual presence of the HIVE in the sauna room is significant: at 18.11\" diameter, it is designed to be a focal element of the space rather than a background appliance.\u003c\/p\u003e\n\u003ch4\u003eDual 30A circuit - unique HIVE 12 electrical configuration\u003c\/h4\u003e\n\u003cp\u003eThe HIVE 12 uses a dual-circuit electrical configuration - two separate 30A \/ 10 AWG circuits rather than a single heavier circuit. This is different from the HIVE 15 (which uses dual 50A \/ 8 AWG circuits) and different from the DROP, CLIFF, and STEEL series which all use single circuits. The dual 30A \/ 10 AWG specification means two separate 30A breakers and two separate 10 AWG wire runs are required for the HIVE 12 installation. The UKU Extension Box manages the connection between the two circuits and the UKU control panel and is a required component for the dual-circuit HIVE 12 configuration. Confirm the electrical panel has two available 30A slots before ordering. A licensed electrician is required.\u003c\/p\u003e\n\u003ch4\u003e528 lbs of stones - sold separately, three required components\u003c\/h4\u003e\n\u003cp\u003eThe HIVE 12 requires three separate component purchases for a complete installation: a UKU control unit (Local Black or WiFi), a UKU Extension Box (required at 12kW), and 528 lbs of 2\"-4\" (5-10 cm) rounded olivine diabase stones. All three are sold separately at BathingBrands. The HIVE 12STU Package bundles all four components (heater, control, Extension Box, and stones) in a single purchase. For buyers ordering the standalone heater, confirm all three required components are included in the order before checkout.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-hook\"\u003e12kW floor-standing sauna heater for rooms from 424 to 636 cubic feet. Open 18.11\" beehive cage form. 528 lbs stone capacity - 2\"-4\" rounded olivine. Dual 30A \/ 10 AWG circuits - two separate breakers required. UKU Extension Box required - not included in this listing. Required (all sold separately): UKU control (Local Black or WiFi); UKU Extension Box; 528 lbs stones. SGS Listed. 5-year warranty (elements excluded). Made in Estonia by HUUM. See HIVE 12STU Package for complete bundled purchase.\u003c\/div\u003e\n\u003cdiv class=\"sl-badges\"\u003e\n\u003cspan class=\"sl-badge\"\u003e12 kW\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e424 to 636 cu ft\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eOpen 18.11\" beehive cage form\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e528 lb stone capacity\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e2\"-4\" rounded olivine stones (sold separately)\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eDual 30A breakers \/ 10 AWG - two circuits\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eUKU Extension Box required (sold separately)\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eUKU control sold separately\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eSGS Listed - made in Estonia\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\u003e12 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\u003eCircuit configuration\u003c\/td\u003e\n\u003ctd\u003eDual circuits - two separate 30A breakers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire gauge per circuit\u003c\/td\u003e\n\u003ctd\u003e10 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUKU Extension Box\u003c\/td\u003e\n\u003ctd\u003eRequired - sold separately\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\u003e424 to 636 cu ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone capacity\u003c\/td\u003e\n\u003ctd\u003e528 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStones included\u003c\/td\u003e\n\u003ctd\u003eNo - sold separately\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 olivine\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\u003eDesign and installation\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eForm\u003c\/td\u003e\n\u003ctd\u003eOpen hexagonal beehive cage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e18.11\" (460 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eFloor-standing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eStainless steel cage and elements\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\u003eRequired components (sold separately)\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\u003eHUUM app - iOS and Android - remote preheat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUKU Extension Box\u003c\/td\u003e\n\u003ctd\u003eRequired at 12kW - sold separately at BathingBrands\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStones\u003c\/td\u003e\n\u003ctd\u003e528 lbs (2\"-4\" rounded olivine)\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\u003eHIVE floor-standing series\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHIVE 12kW (this listing)\u003c\/td\u003e\n\u003ctd\u003e424-636 cu ft | Dual 30A \/ 10 AWG | 528 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHIVE 15kW\u003c\/td\u003e\n\u003ctd\u003e530-813 cu ft | Dual 50A \/ 8 AWG | 528 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHIVE Mini 6kW\u003c\/td\u003e\n\u003ctd\u003e177-318 cu ft | 30A \/ 10 AWG | 330 lbs | No ext box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHIVE Mini 9kW\u003c\/td\u003e\n\u003ctd\u003e318-530 cu ft | 50A \/ 8 AWG | 330 lbs | No ext box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHIVE Mini 10.6kW\u003c\/td\u003e\n\u003ctd\u003e353-706 cu ft | 50A \/ 8 AWG | 330 lbs | Ext box req\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\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty period\u003c\/td\u003e\n\u003ctd\u003e5 years (elements excluded)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eH1003012\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 HIVE 12kW floor-standing sauna heater - 18.11\" open beehive cage\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\u003eRequired (all sold separately):\u003c\/strong\u003e UKU control unit (Local Black or WiFi); UKU Extension Box (required at 12kW); 528 lbs sauna stones (2\"-4\" rounded olivine). \u003cstrong\u003eSee also:\u003c\/strong\u003e HIVE 12STU Package for all components bundled. A licensed electrician is required. Two 30A breakers and two 10 AWG wire runs needed. Do not connect to GFI\/GFCI breakers.\u003c\/p\u003e\n\u003chr class=\"sl-divider\"\u003e\n\u003ch3\u003eWhy the HUUM HIVE 12 stands out\u003c\/h3\u003e\n\u003cdiv class=\"sl-feat-grid\"\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eOpen beehive cage - 528 lbs of visible stone\u003c\/div\u003e\n\u003cp\u003eThe HIVE's 18.11\" open hexagonal cage presents 528 lbs of stones visible on all sides through the cage structure. In the sauna room, the HIVE reads as a stone column surrounded by a structural cage - a heater that is as much a design element as a heating appliance. The open structure allows heat and steam to radiate from the full circumference of the stone mass on every session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003e12kW for rooms 424-636 cu ft\u003c\/div\u003e\n\u003cp\u003eThe HIVE 12 covers mid-large sauna rooms from 424 to 636 cubic feet - the entry point to the full-size HIVE series. For dedicated home saunas in this range, two-bench cabin saunas, and smaller commercial installations where the HIVE's large stone mass and distinctive beehive form are the design priority, the HIVE 12 provides the correct output on a dual 30A circuit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eDual 30A circuits - plan before ordering\u003c\/div\u003e\n\u003cp\u003eThe HIVE 12's dual 30A \/ 10 AWG configuration requires two separate breaker slots and two separate wire runs from the panel to the heater location. This is different from every other HUUM heater's single-circuit configuration. Confirm the panel has two available 30A slots and plan both wire runs before ordering. The HIVE 15 uses dual 50A \/ 8 AWG - heavier still.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003e528 lbs of stone - maximum thermal mass\u003c\/div\u003e\n\u003cp\u003eAt 528 lbs, the HIVE carries more stone mass than any other HUUM heater model. The large stone load provides sustained heat retention, slow and soft steam release, and excellent temperature recovery between back-to-back sessions. For large sauna rooms with multiple bathers or facilities with continuous high-frequency use, the 528-lb stone mass is the key thermal advantage of the HIVE series.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eExtension Box required - confirm before ordering\u003c\/div\u003e\n\u003cp\u003eThe UKU Extension Box is required for the HIVE 12 and is not included in this standalone listing. It is included in the HIVE 12STU Package. When ordering the standalone heater, add the Extension Box to the order alongside the UKU control and stones. The Extension Box manages the connection between the HIVE's dual-circuit load and the UKU control panel and is not optional.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eHIVE 12STU Package - the complete purchase path\u003c\/div\u003e\n\u003cp\u003eThe HIVE 12STU Package at BathingBrands bundles the HIVE 12 heater, UKU control (Local Black or WiFi at checkout), UKU Extension Box, and 528 lbs of stones in a single purchase. For most new HIVE 12 installations, the Package is the more convenient option - all required components in one order. This standalone listing is for buyers replacing just the heater or sourcing components individually.\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\/HivePKG1.jpg\" alt=\"HUUM HIVE 12kW floor-standing sauna heater 18.11 inch open beehive cage 528 lbs stone capacity dual 30A circuits\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"sl-brand-tag\"\u003eMade in Estonia - SGS Listed\u003c\/span\u003e\n\u003ch4\u003eHUUM HIVE 12. 12kW. 424-636 cu ft. 18.11\" beehive cage. 528 lbs of stone. Dual 30A circuits.\u003c\/h4\u003e\n\u003cp\u003eHUUM is an Estonian sauna heater company. The HIVE 12 is the 12kW model in the HUUM HIVE floor-standing series - an 18.11\" open beehive cage carrying 528 lbs of 2\"-4\" rounded olivine stones for rooms from 424 to 636 cubic feet on dual 30A \/ 10 AWG circuits. This listing is the heater only. UKU control, UKU Extension Box, and 528 lbs of stones are all required and sold separately. See the HIVE 12STU Package for a bundled purchase. We are an authorized HUUM dealer.\u003c\/p\u003e\n\u003cul class=\"sl-check\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e12kW, 424-636 cu ft\u003c\/strong\u003e - dual 30A \/ 10 AWG, 240V\/1PH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18.11\" open beehive cage\u003c\/strong\u003e - 528 lbs stone capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUKU Extension Box required\u003c\/strong\u003e - sold separately (included in PKG)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eUKU control + 528 lbs stones also sold separately\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHIVE 12STU Package available\u003c\/strong\u003e - all components bundled\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-brand2\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"sl-brand-tag\"\u003eHIVE 12 vs HIVE 15 - choosing between them\u003c\/span\u003e\n\u003ch4\u003eHIVE 12 (dual 30A) vs HIVE 15 (dual 50A) - room size and circuit capacity\u003c\/h4\u003e\n\u003cp\u003eBoth the HIVE 12 and HIVE 15 are full-size HUUM HIVE floor-standing heaters with the same 18.11\" beehive cage form and 528-lb stone capacity. HIVE 12: 12kW, 424-636 cu ft, dual 30A \/ 10 AWG - two 30A slots required. HIVE 15: 15kW, 530-813 cu ft, dual 50A \/ 8 AWG - two 50A slots and heavier wire required. For rooms from 424-530 cu ft that fall within both models' coverage, the HIVE 12 is the correct choice on the lighter dual 30A circuit; the HIVE 15 is the correct choice only when the room requires the larger output or exceeds 636 cu ft. For rooms from 637-813 cu ft, the HIVE 15 is the only full-size HIVE option. Both require the UKU Extension Box. Both use two separate circuits. Confirm panel capacity for either dual-circuit configuration before ordering. A licensed electrician is required. Do not connect to GFI\/GFCI breakers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cimg class=\"sl-brand-img\" src=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2022-11\/HivePKG1.jpg\" alt=\"HUUM HIVE 12kW versus HIVE 15kW comparison same beehive cage different circuit and room range\"\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\u003eInstallation and Operation Manual\u003c\/h6\u003e\n\u003ca class=\"sl-doc-link\" href=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2025-11\/HUUM-HIVE-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 Installation and Operation Manual (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\u003eElement Requirements\u003c\/h6\u003e\n\u003ca class=\"sl-doc-link\" href=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2025-12\/-HUUM-Element-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 Element Requirements (PDF) \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\u003cdiv class=\"sl-manual-item\"\u003e\n\u003ch6\u003eCertificate of Compliance\u003c\/h6\u003e\n\u003ca class=\"sl-doc-link\" href=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2022-09\/HUUM%20Certificate%20of%20Compliance.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 Certificate of Compliance (PDF) \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-manual-item\"\u003e\n\u003ch6\u003eSize Your Sauna\u003c\/h6\u003e\n\u003ca class=\"sl-doc-link\" href=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2025-09\/Sizing-Your-HUUM.pdf\" 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 Size Your Sauna (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 HIVE 12 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, operating without the required UKU Extension Box, use of incorrect or non-approved stones, operating without the required stone load, or failure to follow HUUM's installation and operating guidelines. A licensed electrician is required. Do not connect to GFI\/GFCI breakers. Two separate 30A circuits required. 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":"Default Title","offer_id":52281756516634,"sku":"H1003012","price":2848.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/1690\/0634\/files\/huum-hive-sauna-heater_d0a54b4a-9d05-4c1a-a36b-854a59c3fc60.jpg?v=1779706224","url":"https:\/\/mediriser.com\/products\/huum-hive-12-hive-series-12-0kw-sauna-heater","provider":"Mediriser","version":"1.0","type":"link"}