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Price: 7995.00 GBP
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Steam & Oak Hiili 2m Black Thermowood Barrel Sauna (Harvia 9kW, WiFi Option) - Harvia Cilindro PC90 9kW
Steam & Oak Hiili 2m Black Thermowood Barrel Sauna A black barrel sauna, finished at the factory rather than painted in a yard afterwards. Almost every black barrel sold in this country is somebody's paint job on a natural barrel. This one comes out of the line in Coal Black, on thermally modified timber, with the option of black or mirrored glass to match. The 44mm walls, and why we keep going on about them Most imported barrel saunas are built from 38mm or 40mm staves. We have priced up more than forty of them this year and that is where the bulk of the market sits. This one is 44mm. On a barrel that matters more than it would on almost any other garden building, because the wall is the entire thermal envelope. There is no cavity, no insulation batt, no inner lining. The timber is the insulation, and it is also the heat store. So the extra 6mm over a 38mm barrel does two jobs at once: It insulates better. Thermal resistance rises directly with thickness, so on the standard figure for softwood a 44mm wall gives you roughly 16% more resistance than a 38mm wall and about 10% more than a 40mm one. It stores more heat. That same 16% is 16% more timber mass sitting around you. Once a solid timber sauna is up to temperature it holds and re-radiates rather than needing constant topping up, which is what you notice on the second and third session of an evening rather than the first. There is a third benefit that is harder to put a number on. Thicker staves are stiffer and cup less as they move through wet and dry seasons, so the joints between them stay tighter for longer. In a structure this small, air leaking through gaps costs you more heat than the wall itself does. That is the failure nobody photographs. A solid back, and why we would leave it that way This barrel ships with a solid rear wall as standard. No half moon window, no panoramic glass. Plenty of barrels are sold with a glazed back and they do look wonderful in a photograph. What the photograph does not show you is that a glass panel loses heat somewhere in the order of ten times faster than the insulated wall it replaced. Put a large one in the back of a small barrel and you have quietly undone a good part of what the 44mm walls were doing for you, and you will pay for it on the electricity bill every session for as long as you own it. There is also the practical bit. A rear window looks out at whatever is behind the sauna, which in most gardens is a fence, and at night it is a black mirror. The view you actually want is through the door, on your way in and out. If you do want glazing we can do it. Two rear windows, a half panoramic or a full panoramic are all available, as are black and mirrored glass. Just ask, and we will tell you honestly what it costs you in heat before you commit. Thermowood Thermally modified timber is wood that has been baked at around 200°C in low oxygen with steam, rather than treated with preservative. The heat drives out the resin and breaks down the sugars that rot fungi feed on. What you get is timber that moves far less with the weather and resists rot for decades, using nothing but heat and steam. No chemicals, ever, and nothing to reapply. It also takes a dark finish beautifully, which is the other reason this one is black. Your heater, and whether you want it on your phone Harvia Cilindro PC90 9kW. The classic Cilindro pillar with the tall stone column and 90kg of stones. Controls built into the heater. £7,995. Harvia Cilindro PC90XW 9kW WiFi. The same heater with MyHarvia app control, so you can start it from the kitchen or on the way home. £8,695. The WiFi version comes with the Harvia door sensor fitted. That is not an accessory, it is what the electrical sauna standard requires before any heater is allowed to start remotely, and it is not in the box with the heater. A good number of quotes leave it off and the customer finds out later. Mood lighting, included Both LED runs are fitted as standard: one under the benches and one behind the backrests, plus the Harvia light fitting. Lit from below and behind rather than from above, which is the difference between a sauna you want to sit in with the door shut and a shed with a bulb in it. Most sellers charge £300 to £500 for this and charge it twice if you want both runs. Specifications Length: 200cm External diameter: 235cm Height: 240cm Weight: 800kg Seats: 4 Wall thickness: 44mm thermowood Exterior finish: Coal Black Benches: Linden Floor: Terrace boards Roof: Two layer bitumen shingles Rear wall: Solid as standard, glazing available to order Use: Outdoor only What's included Barrel shell in 44mm thermowood, factory finished in Coal Black Pre-cut wall staves and tension bands Linden benches Terrace board floor Two layer bitumen shingle roof Tempered glass door One Harvia light fitting inside, two Harvia lights outside LED lighting under the benches and behind the backrests Your chosen Harvia Cilindro 9kW heater Harvia door sensor, on the WiFi version Available to
Disclaimer: Product information, including title, description, and images, is sourced/provided by our affiliate partner, Steam & Oak.
Disclaimer: Some of the links on this website are affiliate links, meaning we may earn a commission if you click through and make a purchase. This comes at no additional cost to you.
By clicking the button above, you acknowledge that you will be redirected to a third-party website and agree to their terms and conditions.
Product information, including title, description, and images, is sourced/provided by our affiliate partner, Steam & Oak.
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Share this product with a friend:
Refer a friend and earn 0.05 CEC when they click the link, plus an additional 1.00 CEC if they register. Share this Product and boost your earnings together!