Beancross Rd, Polmont, Falkirk FK2 0XS Open today · 9am–5:30pm 07367 086350 07861 958262 AboutAbout Our story & team Reviews Verified Google reviews Garden RoomsAll Garden Rooms Explore the full range Home Offices Work-from-garden studios Garden Gyms Private fitness spaces Garden Bars & Lounges Entertain in style Annexes & Guest Rooms Extra living space SaunasBarrel Saunas Jonas Grand From £8,995 Jonas Grand From £8,995 Jonas S From £6,495 Jonas Teak From £6,995 Joris Grand From £9,495 Teak From £8,495 Cube Saunas Ebony From £10,995 Ebony From £10,495 Ula Classic Beige Full-Glass From £9,995 Ula L From £11,495 Ula L From £12,495 Ula Micro From £8,495 Ula Mini From £8,995 Ula Mini From £9,495 Ula Mini From £9,295 Modular Saunas Celsium Herkus L From £12,995 Tauras Grand Ebony From £16,995 Tauras Modular Air with Aiste Grand Hot Tub From £19,995 Hot TubsAll Hot Tubs Wood-fired thermowood soaking tubs Aiste Grand From £6,995 Benas From £5,495 Log CabinsAll Log Cabins 30 designs, 34mm to 68mm walls Cabin Range & Prices Full 2026 price list Cabin Photo Gallery Real Scottish installations Sheds, Garages & Summerhouses From £500, installed 2026 Shed Price List Sheds, garages, playhouses Glamping & Residential Cabins Pods, barrels & lodges Other ServicesBBQ Huts Year-round outdoor cooking Glamping & Residential Holiday-let & annex builds Sheds, Garages & Summerhouses From £640, installed Outdoor Kitchens Built for Scottish weather Composite Decking Low-maintenance decks Bespoke Design Service Full design & build Our WorkRequest Estimate Cube Saunas # Ebony Cube.HUUM Black Glass edition. A compact cube sauna in charred ebony with the HUUM DROP heater in black glass, a design-award pairing. Request Your Estimate 07367 086350From £10,995 · Delivered & installed Overview ## Ebony Cube Sauna, HUUM Black Glass. This is our most photographed compact sauna, an ebony-clad cube with the HUUM DROP heater in Black Glass edition. The HUUM DROP won the German iF Design Award, and paired with the Shou Sugi Ban exterior it's the sauna that gets the most 'what is that?' reactions on our Instagram. Inside, the HUUM DROP is architecturally different from a standard Harvia, it's a sculptural teardrop of black glass with sauna stones balanced in the crown. Same functional output, entirely different aesthetic language. The cube itself is a fully-insulated timber-frame structure clad in charred spruce, sized for 3–4 person capacity, the design specification for owners who want a design piece rather than a family-of-six workhorse. Key features ## What makes it different. ### HUUM DROP heater, Black Glass edition iF Design Award winner, sculptural black-glass teardrop with exposed sauna stones. 9kW output. ### Shou Sugi Ban ebony cladding Genuine charred and oiled spruce exterior, architectural matte black. ### Fully-insulated cube 100mm rockwool, vapour barrier, hemlock lining. Efficient running through Scottish winters. ### 3–4 person capacity Single-tier bench for architectural clarity. Sit two comfortably, four socially. ### Compact footprint 2.2 x 2.0m external, fits gardens where a Herkus L can't. ### Full-height glass door Toughened glass door with black frame, matches the HUUM aesthetic. Specification ## The numbers behind the object. Capacity3–4 adults External footprint2.2 x 2.0 m Interior ceiling height2.1 m CladdingShou Sugi Ban charred spruce Insulation100mm rockwool LiningKnot-free western hemlock HeaterHUUM DROP Black Glass, 9kW ControlsHUUM UKU wall panel + Wi-Fi app Heat-up time≈ 30 minutes Power requirement32A single-phase Warranty10 yr structural · 5 yr HUUM Living with it ## How it actually works day to day. The HUUM UKU controller is the operational upgrade that owners talk about most. Full Wi-Fi with an iOS/Android app, you set the sauna to warm up on the drive home, and it's at temperature by the time you're changed. That sounds like a gimmick until you use it for a week. The DROP heater's exposed stone crown allows for a genuinely intense löyly, pour a ladle of water over 40 kg of hot stones and the steam is deeper and softer than the enclosed rock cradle of a standard heater. The compact footprint is deliberate. If you want six-person capacity, buy a Herkus L. This is the sauna for owners who value the design object as much as the function. Best for ## Who typically buys this one. - Design-conscious owners who want a photographed hero object - Smaller urban and courtyard gardens - Couples and small families (up to 4 socially) - Owners who value Wi-Fi controls and app scheduling Real installations ## Ebony in Scottish gardens. Every photograph on this page is a genuine Signature Garden Rooms installation. Frequently asked ## Straight answers. If your question isn't listed, call Ryan on 07367 086350. What is the HUUM DROP?An Estonian-designed electric sauna heater in the form of a sculptural teardrop, with sauna stones balanced in the exposed crown. It won the German iF Design Award. Functionally it's a 9kW heater; visually it's the room's centrepiece. How does Wi-Fi control work? Is the DROP heater safe with exposed stones? How long does it take to heat up? How many people fit? What power supply? What's included? What's the warranty? Next step ## Ready to talk about the Ebony Cube Sauna, HUUM Black Glass? Tell us your garden, your access, and roughly when you'd like it in. We'll come back with a considered price, honest lead time, and any planning notes for your site. Request Your Estimate 07367 086350 Fully insured · £5m public liability · Falkirk-based, working across Central Scotland Explore the site ## Popular pages & service areas Other services - insulated bespoke garden rooms in Falkirk - premium log cabins in Central Scotland - Nordic BBQ huts for Scottish gardens - saunas and hot tubs supplied and installed - outdoor kitchens built for Scottish weather - composite decking installers near you - timber sheds, garages and summerhouses - bespoke garden building design and build - garden rooms in Falkirk - garden rooms in Stirling - garden rooms in Glasgow - garden rooms in Edinburgh - garden rooms in Livingston - garden rooms in Dunfermline - recent installs across Central Scotland - verified Google reviews (4.6★) Bespoke, fully-insulated garden rooms designed and built across Falkirk and Central Scotland. Explore - Garden Rooms - All Services - Our Work - Service Areas - About - Reviews Contact - Beancross Rd, Polmont,Falkirk FK2 0XS - 07367 086350 - 07861 958262 - ryan@amrgardenbuildings.co.uk Opening hours - Mon – Fri9:00 – 17:30 - Saturday9:00 – 17:00 - Sunday9:00 – 16:00 Leave a Google review © 2026 Signature Garden Rooms. All rights reserved. · Formerly AMR Garden Buildings · Owned and run by Ryan Meldrum PrivacyCookiesTermsContact CallRequest Estimate