{"product_id":"huum-cliff-mini-4-cliff-mini-series-4kw-sauna-heater","title":"HUUM CLIFF Mini 4 CLIFF Mini Series 4kW Sauna Heater","description":"\u003ch2 class=\"product__title ff-heading fs-heading-2-base\"\u003eHUUM CLIFF Mini 3.5kW | Electric Sauna Heater\u003c\/h2\u003e\n\u003c!-- HUUM CLIFF Mini 4 - 4kW Wall-Mounted Electric Sauna Heater --\u003e\u003c!-- CLIFF Mini Series | 240V\/1PH | 106-177 cu ft --\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; }\n  .sl h5 { font-weight: 700 !important; color: #0f172a !important; margin: 0 0 0.5rem; line-height: 1.3; }\n  .sl-hook { font-weight: 500 !important; line-height: 1.75 !important; color: #0f172a !important; padding: 1.1rem 1.4rem; background: #e8f0fa; border-left: 3px solid #2563a8; border-radius: 0 6px 6px 0; margin: 1.5rem 0; }\n  .sl-badges { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 1.75rem; }\n  .sl-badge { background: #e8f0fa; color: #2563a8; font-size: 12px; font-weight: 600; padding: 5px 11px; border-radius: 4px; border: 1px solid #bfd4ef; white-space: nowrap; }\n  .sl-desc p { font-weight: 500 !important; line-height: 1.75 !important; color: #0f172a !important; margin: 0 0 1rem; }\n  .sl-desc p:last-child { margin: 0; }\n  .sl-spec-table { width: 100%; border-collapse: collapse; font-size: 15px; }\n  .sl-spec-table tr:nth-child(odd) { background: #f8fafc; }\n  .sl-spec-table td { padding: 9px 12px; border: 1px solid #e2e8f0; vertical-align: top; }\n  .sl-spec-table td:first-child { color: #64748b; width: 52%; }\n  .sl-spec-table td:last-child { font-weight: 700 !important; color: #0f172a !important; }\n  .sl-spec-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; align-items: start; }\n  .sl-spec-tables { min-width: 0; 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align-items: center; gap: 7px; line-height: 1.3; }\n  .sl-feat-title::before { content: \"\"; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: #2563a8; flex-shrink: 0; }\n  .sl-feat p { font-weight: 500 !important; color: #0f172a !important; line-height: 1.6 !important; margin: 0; font-size: 14px; }\n  .sl-brand1, .sl-brand2 { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; padding: 1.5rem 0; }\n  .sl-brand-img { width: 100%; height: auto; border-radius: 8px; display: block; }\n  .sl-brand-tag { display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: 0.09em; text-transform: uppercase; color: #2563a8; background: #e8f0fa; border: 1px solid #bfd4ef; border-radius: 4px; padding: 4px 10px; margin-bottom: 0.75rem; }\n  .sl-brand1 h4, .sl-brand2 h4 { font-size: 22px !important; font-weight: 700 !important; color: #0f172a !important; margin: 0 0 0.75rem; line-height: 1.3 !important; }\n  .sl-brand1 p, .sl-brand2 p { font-weight: 500 !important; line-height: 1.75 !important; color: #0f172a !important; margin: 0 0 0.9rem; }\n  .sl-brand1 p:last-child, .sl-brand2 p:last-child { margin: 0; }\n  .sl-check { list-style: none; padding: 0; margin: 1rem 0 0; }\n  .sl-check li { font-weight: 500 !important; line-height: 1.6 !important; color: #0f172a !important; padding: 10px 0 10px 22px; position: relative; border-bottom: 1px solid #e2e8f0; }\n  .sl-check li:last-child { border-bottom: none; }\n  .sl-check li::before { content: \"\"; position: absolute; left: 4px; top: 16px; width: 7px; height: 7px; border-radius: 50%; background: #2563a8; }\n  .sl-check li strong { color: #0f172a !important; font-weight: 700; }\n  .sl-notice { background: #eff6ff; border: 1px solid #bfd4ef; border-radius: 6px; padding: 0.9rem 1.1rem; margin-bottom: 1.5rem; font-weight: 500 !important; color: #1e3a5f !important; line-height: 1.6 !important; font-size: 14px; }\n  .sl-notice-green { background: #f0fdf4; border: 1px solid #86efac; border-radius: 6px; padding: 0.9rem 1.1rem; margin-bottom: 1.5rem; font-weight: 500 !important; color: #14532d !important; line-height: 1.6 !important; font-size: 14px; }\n  .sl-warranty { background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 6px; padding: 1.25rem 1.5rem; }\n  .sl-warranty p { font-weight: 500 !important; color: #0f172a !important; line-height: 1.7 !important; margin: 0; }\n  .sl-manual { background: #fff; border: 1px solid #e2e8f0; border-radius: 6px; padding: 1.25rem 1.5rem; margin-bottom: 1.5rem; }\n  .sl-manual p { font-weight: 500 !important; color: #0f172a !important; line-height: 1.7 !important; margin: 0 0 1rem; }\n  .sl-manual h6 { font-size: 13px; font-weight: 700 !important; color: #64748b !important; margin: 1.25rem 0 0.5rem; text-transform: uppercase; letter-spacing: 0.05em; }\n  .sl-manual h6:first-child { margin-top: 0; }\n  .sl-doc-links { display: flex; flex-wrap: wrap; gap: 10px; }\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 CLIFF Mini 4 is the smallest and most installation-friendly heater in the CLIFF range - and it is the only CLIFF model that mounts on the wall rather than standing on the floor. At 10.6 inches wide and just 6.3 inches deep, it occupies less than a third of the wall footprint of a conventional electric sauna heater. Its wall safety clearance is 2.36 inches - the shortest in the entire HUUM lineup - enabling installation in small home saunas, apartment sauna rooms, cabin saunas, and any space where a floor-mounted heater would be impossible or awkward. Despite its compact profile, the CLIFF Mini 4 holds 132 lbs of sauna stones and delivers the same internal air duct heating technology as the full CLIFF range, reaching temperatures up to 230°F and heating 25% faster than conventional heaters. It runs on a standard 20A circuit with 12 AWG wire - the lightest electrical requirement of any HUUM heater.\u003c\/p\u003e\n\u003ch4\u003eWall-mounted - the only CLIFF model that does not need floor space\u003c\/h4\u003e\n\u003cp\u003eThe CLIFF Mini's wall-mount design is not a downgrade from the floor CLIFF - it is a different solution to a different problem. Floor-mounted heaters require clear floor area around the heater, a specific heater position in the room layout, and structural consideration of the floor load point. The CLIFF Mini mounts to the wall and projects only 6.3 inches into the room, eliminating all three of those constraints simultaneously. The heater occupies wall space rather than floor space - which in a small sauna room is often the most abundant resource. It can be positioned at exactly the right height for the sauna layout, can be placed in corners that floor heaters cannot reach, and can be installed in rooms where the floor plan simply does not allow a freestanding unit. The 2.36-inch wall safety clearance means it can sit very close to adjacent walls and surfaces without any concern - closer than any other HUUM model.\u003c\/p\u003e\n\u003ch4\u003e132 lbs of stones in a 6.3-inch-deep wall heater\u003c\/h4\u003e\n\u003cp\u003eThe CLIFF Mini carries 132 lbs of sauna stones - a substantial load for a wall-mounted heater, and one that most heaters of this size cannot approach. This is the result of HUUM's specific engineering philosophy: the ribs of the CLIFF Mini's stone cage are made from the cutout offcuts produced when manufacturing HUUM STEEL heaters - waste material from one heater's production becomes the structural framework of another. This manufacturing approach allows HUUM to create a stone cage with maximum internal volume for the external footprint, packing 132 lbs of stone into a heater that is only 6.3 inches deep. The stones are in direct contact with the heating elements throughout the cage, maximising heat transfer efficiency. Four boxes of 33-lb rounded olivine-diabase stones (1.2-2\" diameter) are required and sold separately. The removable ribs and included prop blocks allow the fin sections to be removed for stone loading, then reinstalled without any tools.\u003c\/p\u003e\n\u003ch4\u003eEco-conscious production - CLIFF ribs from STEEL cutouts\u003c\/h4\u003e\n\u003cp\u003eHUUM's production process for the CLIFF Mini is designed around zero material waste. When stainless steel sheets are stamped to produce the HUUM STEEL heater bodies, the cutout sections would normally become scrap. Instead, HUUM uses those exact cutouts as the rib sections of the CLIFF heater cage - the material removed from one product becomes the structural framework of another. The result is two heaters produced from the same stainless steel sheet with no offcut waste. This is not a marketing claim - it is an engineering design decision that is visible in the finished product: the profile of the CLIFF ribs and the negative profile of the STEEL heater body are geometric complements of each other. For buyers who care about material efficiency and responsible manufacturing, the CLIFF Mini is the environmentally considered choice in the HUUM range.\u003c\/p\u003e\n\u003ch4\u003eSimple electrical installation - 20A breaker, 12 AWG wire\u003c\/h4\u003e\n\u003cp\u003eThe CLIFF Mini 4 operates on 240V\/1-phase with a 20A breaker and 12 AWG wire. This is the lightest electrical specification of any HUUM heater, and it is significantly more accessible than the 50A breaker and 8 AWG wire required for the CLIFF 9. In many homes with existing sauna rooms or small steam rooms, a 20A 240V circuit is already in place or can be added with a simple panel modification rather than requiring the heavier infrastructure of a larger heater installation. An electrician is still required for all connections - but the CLIFF Mini 4 places the smallest possible electrical demand on the installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-hook\"\u003e4kW wall-mounted electric sauna heater for rooms from 106 to 177 cubic feet. 10.6\"W x 6.3\"D x 38.4\"H. Wall safety clearance 2.36\" (6 cm) - shortest in the HUUM range. 132 lbs stone capacity (4 boxes, sold separately). Internal air duct system - heats 25% faster. Stones in direct contact with heating elements. Removable ribs and prop blocks for stone loading. Stone cage ribs made from recycled STEEL heater cutouts - zero material waste. Premium stainless steel construction. SGS certified - maximum 230°F. Red Dot Award design. 240V \/ 1-phase, 20A breaker, 12 AWG wire. UKU control sold separately (Local, Wi-Fi, or Glass). Stones sold separately. Optional safety railing and reflector panel available. 3-year limited residential warranty. Made in Estonia by HUUM.\u003c\/div\u003e\n\u003cdiv class=\"sl-badges\"\u003e\n\u003cspan class=\"sl-badge\"\u003e4 kW\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e106 to 177 cu ft\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eWall-mounted\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eOnly wall-mounted CLIFF model\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e2.36\" wall clearance - shortest in HUUM range\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e132 lbs stone capacity\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e10.6\"W x 6.3\"D x 38.4\"H\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eHeats 25% faster - internal air duct\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eDirect stone-to-element contact\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eRibs from recycled STEEL cutouts\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003ePremium stainless steel\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eSGS certified - up to 230°F\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eRed Dot Award winner\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e240V \/ 1-phase\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e20A breaker - 12 AWG wire\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eUKU control compatible\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003e3-year residential warranty\u003c\/span\u003e \u003cspan class=\"sl-badge\"\u003eMade in Estonia\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\u003ePower and electrical\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 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e240V \/ 1-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCircuit breaker required\u003c\/td\u003e\n\u003ctd\u003e20 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire gauge\u003c\/td\u003e\n\u003ctd\u003e12 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eSGS (fully accepted in USA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax temperature\u003c\/td\u003e\n\u003ctd\u003e230°F\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 dimensions and weight\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e10.6\" (270 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e6.3\" (160 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e38.4\" (975 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting type\u003c\/td\u003e\n\u003ctd\u003eWall-mounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCLIFF Mini vs floor CLIFF depth\u003c\/td\u003e\n\u003ctd\u003e6.3\" vs 10.6\" - 40% slimmer profile\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\u003ePerformance and room sizing\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum room volume\u003c\/td\u003e\n\u003ctd\u003e106 cu ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum room volume\u003c\/td\u003e\n\u003ctd\u003e177 cu ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone capacity\u003c\/td\u003e\n\u003ctd\u003e132 lbs (4 boxes required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone size required\u003c\/td\u003e\n\u003ctd\u003e1.2 to 2\" diameter (3-5 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating speed advantage\u003c\/td\u003e\n\u003ctd\u003eUp to 25% faster - internal air duct\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWall safety clearance\u003c\/td\u003e\n\u003ctd\u003e2.36\" (6 cm) - shortest in HUUM lineup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSteam type\u003c\/td\u003e\n\u003ctd\u003eSoft, long-lasting - wet or dry\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\u003eConstruction and design\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody material\u003c\/td\u003e\n\u003ctd\u003ePremium stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating elements\u003c\/td\u003e\n\u003ctd\u003eIndustrial-grade stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone contact\u003c\/td\u003e\n\u003ctd\u003eDirect - stones in contact with heating elements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir duct system\u003c\/td\u003e\n\u003ctd\u003eInternal - circulates air through stone mass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRib material\u003c\/td\u003e\n\u003ctd\u003eRecycled cutouts from HUUM STEEL heater production - zero waste\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone stacking\u003c\/td\u003e\n\u003ctd\u003eRemovable ribs + 2 prop blocks (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExterior surface\u003c\/td\u003e\n\u003ctd\u003eNatural stone surface visible all around\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesign award\u003c\/td\u003e\n\u003ctd\u003eRed Dot Product Design Award\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 compatibility\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible controls\u003c\/td\u003e\n\u003ctd\u003eHUUM UKU Local, UKU Wi-Fi, UKU Glass Wi-Fi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl sold separately\u003c\/td\u003e\n\u003ctd\u003eYes - required for operation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUKU Local features\u003c\/td\u003e\n\u003ctd\u003eWall panel, remote control, door sensor, overheating protection, child lock, light\/ventilation\/steamer integration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUKU Wi-Fi features\u003c\/td\u003e\n\u003ctd\u003eAll Local features + HUUM app smartphone control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUKU Glass Wi-Fi\u003c\/td\u003e\n\u003ctd\u003eElegant glass panel with integrated Wi-Fi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature range\u003c\/td\u003e\n\u003ctd\u003e104°F to 230°F\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\u003eOptional accessories\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety railing\u003c\/td\u003e\n\u003ctd\u003eLight wood profiles - prevents accidental contact, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReflector panel\u003c\/td\u003e\n\u003ctd\u003eStainless steel - reduces wall safety clearance by half, sold separately\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\u003eStones required\u003c\/h4\u003e\n\u003ctable class=\"sl-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eStone type\u003c\/td\u003e\n\u003ctd\u003eRounded olivine-diabase - 1.2 to 2\" (3-5 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity required\u003c\/td\u003e\n\u003ctd\u003e4 boxes x 33 lbs = 132 lbs total\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\u003eNote\u003c\/td\u003e\n\u003ctd\u003eSmaller stone size than floor CLIFF (3-5 cm vs 5-10 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\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 CLIFF Mini 4kW wall-mounted heater\u003c\/div\u003e\n\u003cdiv class=\"sl-inc-item\"\u003eWall mounting bracket and hardware\u003c\/div\u003e\n\u003cdiv class=\"sl-inc-item\"\u003e2 prop blocks (for removing fins during stone loading)\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\u003eNot included (required):\u003c\/strong\u003e UKU control unit (sold separately), 4 boxes of 1.2-2\" rounded olivine-diabase stones (132 lbs total, sold separately). \u003cstrong\u003eOptional:\u003c\/strong\u003e Safety railing, reflector panel (both sold separately).\u003c\/p\u003e\n\u003chr class=\"sl-divider\"\u003e\n\u003ch3\u003eWhy the CLIFF Mini 4 stands out\u003c\/h3\u003e\n\u003cdiv class=\"sl-feat-grid\"\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eWall-mounted - floor stays clear\u003c\/div\u003e\n\u003cp\u003eThe only CLIFF that mounts to the wall. At 6.3\" deep and 2.36\" wall clearance, it fits into small sauna rooms, apartment saunas, and cabin spaces where a floor-mounted heater is impractical or impossible. No floor space consumed, no heavy footprint, no positioning constraints for benches or layout.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003e2.36\" wall clearance - shortest in HUUM\u003c\/div\u003e\n\u003cp\u003eThe internal air duct reduces the required wall safety clearance to just 2.36 inches - significantly less than any floor CLIFF model (9.45\" for the CLIFF 9). Fits next to adjacent walls, into corners, and alongside bench structures in any position that suits your sauna layout.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003e132 lbs stones in a 6.3\" deep heater\u003c\/div\u003e\n\u003cp\u003eHigh stone capacity for a wall-mounted heater of this size, achieved through the zero-waste rib design. Stones sit in direct contact with the heating elements. Four boxes of 33-lb rounded olivine-diabase stones produce soft, sustained steam that continues long after the initial heat cycle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003eRecycled STEEL cutouts - zero waste production\u003c\/div\u003e\n\u003cp\u003eThe cage ribs of every CLIFF Mini are made from the exact cutout sections produced when stamping HUUM STEEL heater bodies. Two heaters manufactured from a single stainless steel sheet with no scrap offcuts. A genuine engineering design decision for material efficiency, visible in the finished product.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003e20A breaker - lightest electrical spec\u003c\/div\u003e\n\u003cp\u003e240V\/1-phase on a standard 20A breaker with 12 AWG wire - the most accessible electrical installation of any HUUM heater. Suitable for rooms where a 20A 240V circuit already exists, or where adding one requires minimal panel modification. A licensed electrician is still required for all connections.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sl-feat\"\u003e\n\u003cdiv class=\"sl-feat-title\"\u003e25% faster heating + 230°F maximum\u003c\/div\u003e\n\u003cp\u003eThe internal air duct circulates air through the stone mass for faster, more even heating throughout the room volume. SGS certified to reach 230°F - the true Finnish sauna temperature that UL-listed heaters cannot achieve. A proper sauna experience in the smallest possible package.\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 alt=\"HUUM CLIFF Mini 4kW wall-mounted electric sauna heater showing slim profile and natural stone surface\" src=\"https:\/\/mediriser.com\/cdn\/shop\/files\/hive-cliff-mini-sauna-heater-wall-in-Auroom.jpg?v=1778270661\u0026amp;width=800\" class=\"sl-brand-img\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"sl-brand-tag\"\u003eMade in Estonia\u003c\/span\u003e\n\u003ch4\u003eThe CLIFF Mini. Designed for saunas that don't have room for anything else.\u003c\/h4\u003e\n\u003cp\u003eHUUM is an Estonian sauna heater manufacturer whose products are built on a specific engineering philosophy: the heater should disappear into the sauna rather than dominate it. The CLIFF Mini takes that principle further than any other HUUM model. Its wall-mount design, 6.3-inch depth, 2.36-inch wall clearance, and stone-forward cage construction make it the most space-efficient high-performance electric sauna heater available. The ribs of its stone cage are made from recycled material. The SGS certification allows it to reach temperatures that most competitors cannot. And despite all of these constraints, it holds 132 lbs of stones and heats 25% faster than a conventional heater.\u003c\/p\u003e\n\u003cul class=\"sl-check\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall-mounted\u003c\/strong\u003e - the only CLIFF model that leaves the floor entirely free\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2.36\" wall clearance\u003c\/strong\u003e - the shortest safety distance in the entire HUUM range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e132 lbs stone capacity\u003c\/strong\u003e - direct stone-to-element contact, soft long-lasting steam\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecycled rib construction\u003c\/strong\u003e - STEEL cutouts become CLIFF cage ribs, zero production waste\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20A \/ 12 AWG\u003c\/strong\u003e - lightest electrical requirement of any HUUM heater\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\"\u003eAbout HUUM\u003c\/span\u003e\n\u003ch4\u003ePrecision sauna heaters, handcrafted in Estonia\u003c\/h4\u003e\n\u003cp\u003eEvery HUUM heater is produced in Estonia - handcrafted components assembled with careful attention to detail and craftsmanship. HUUM uses high-quality stainless steel throughout, minimising the amount of metal exposed to sauna heat so that the majority of thermal energy derives from the stone mass rather than from metal surfaces. The CLIFF Mini is designed specifically for apartment saunas, small cabin rooms, and any residential space where a larger heater is not a practical option. It does not compromise on heat quality or steam performance to achieve its small footprint - it achieves them through better engineering.\u003c\/p\u003e\n\u003cp\u003eThe CLIFF Mini ships from Chicago on a freight pallet. Typical lead time is 7 to 9 days from order. Curbside delivery. A licensed electrician is required for the 240V\/1-phase circuit connection. Stones (4 boxes, 1.2-2\" rounded olivine-diabase) and a UKU control unit must be purchased separately and are required for operation before first use. Warranty coverage requires the correct stone type and quantity to be installed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cimg alt=\"HUUM CLIFF Mini heater installed on sauna wall showing slim profile beside bench\" src=\"https:\/\/mediriser.com\/cdn\/shop\/files\/HUUM-cliff-sauna-heater-installed.2_0_e93e3c22-a3e7-405e-b90f-981e0e14e7c1.jpg?v=1778270684\u0026amp;width=800\" class=\"sl-brand-img\"\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\u003ch5\u003eInstallation manual and wiring diagram\u003c\/h5\u003e\n\u003cp\u003eThe CLIFF Mini installation manual is included with the heater and covers wall mounting, the 240V electrical connection (20A breaker, 12 AWG wire), stone loading using the removable ribs and prop blocks, UKU control wiring, minimum safety distances (2.36\" wall clearance), and guidance on stone type and quantity. Download below. Review the manual before scheduling your electrician to ensure the wall mounting location and electrical circuit are both prepared correctly before the heater arrives.\u003c\/p\u003e\n\u003ch6\u003eDownloads\u003c\/h6\u003e\n\u003cdiv class=\"sl-doc-links\"\u003e\n\u003ca href=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2025-11\/HUUM-CLIFF-Sauna-Heater-IOM.pdf\" class=\"sl-doc-link\" target=\"_blank\"\u003e \u003csvg width=\"14\" height=\"14\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\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 HUUM Installation Manual (PDF) \u003c\/a\u003e \u003ca href=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2025-12\/-HUUM-Element-Requirements.pdf\" class=\"sl-doc-link\" target=\"_blank\"\u003e \u003csvg width=\"14\" height=\"14\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\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 HUUM-Element-Requirements (PDF) \u003c\/a\u003e \u003ca href=\"https:\/\/prod.cms.bathingbrands.com\/sites\/default\/files\/2022-09\/HUUM%20Certificate%20of%20Compliance.pdf\" class=\"sl-doc-link\" target=\"_blank\"\u003e \u003csvg width=\"14\" height=\"14\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\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 HUUM Certificate of Compliance (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\u003e3-year residential \/ 1-year commercial warranty\u003c\/h5\u003e\n\u003cp\u003eThe HUUM CLIFF Mini 4kW is covered by a \u003cstrong\u003e3-year limited residential warranty\u003c\/strong\u003e from the date of purchase, covering defects in materials and workmanship under normal residential use. Commercial use is covered by a \u003cstrong\u003e1-year limited warranty (excluding heating elements)\u003c\/strong\u003e. To maintain warranty coverage, the heater must be installed with the correct stone type and quantity (4 boxes of 1.2-2\" rounded olivine-diabase stones) and operated with a compatible HUUM UKU control unit. The warranty does not cover damage from improper installation, incorrect stones, operation without the required stone load, or incorrect electrical configuration. The CLIFF Mini is fully serviceable - replacement elements and components are available separately. Proof of purchase is required for warranty claims. We are an authorised HUUM dealer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HUUM","offers":[{"title":"240V\/1PH (Home Use)","offer_id":52197812535578,"sku":"H1005012","price":2003.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/1690\/0634\/files\/huum-cliff-mini.jpg?v=1778270623","url":"https:\/\/mediriser.com\/products\/huum-cliff-mini-4-cliff-mini-series-4kw-sauna-heater","provider":"Mediriser","version":"1.0","type":"link"}