Holl's Hestia Lounge 210 outdoor sauna on a stone patio, glass door facing a mountain lake at sunsetHoll's Hestia Lounge 210 outdoor sauna, front view through the terrace to the glass doorHoll's Hestia Lounge 210 outdoor sauna, three quarter view with covered terrace seatsHoll's Hestia Lounge 210 outdoor sauna, three quarter view from the other sideHoll's Hestia Lounge 210 outdoor sauna, rear view with half moon windowHoll's Vulkano Black electric sauna heater with stones

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Holl's Hestia Lounge 210: 4 to 6 Person Outdoor Sauna

One configuration. The 6kW stove and its stones are in the price; the base and the circuit are yours to arrange.

£8,990.00

Four to six seated, or two lying downCovered terrace with outdoor seats4 year wood, 2 year electrical warranty

Free with this sauna

A matching pair, your choice of two

Tick the box and pick one pair. It costs nothing, nothing is added at the checkout, and it is posted to you separately from the cabin.

Two waffle robes

Cotton waffle, 200gsm. About 120cm long, one size. Shawl collar, attached belt, two pockets. Embroidered with the Tarnfell mark. £30 each on our shelf.

Two bath sheets

100 by 170cm, 600gsm Microcotton, white. Big enough to wrap in rather than hold closed. Embroidered with the Tarnfell mark. £35 each on our shelf.

One pair with each sauna ordered.

Optional

Installation, if you would rather not build it yourself

Every sauna arrives as a kit you can build yourself. If you would rather not, tick the box and we introduce you to an independent installer near you. Expect it to cost from about £650.

What ticking the box does

  • Nothing is charged at the checkout. The tick adds a note to your order.
  • We find an independent installer who covers your postcode, someone we have used before where we can, and put you in touch.
  • You agree the price and the date with the installer and pay them directly. Their contract is with you, not with Tarnfell.
  • If the price does not suit, say no. Your order stands and you build the cabin yourself.

What the installer does

  • Builds the cabin where it is going to stand, working from the maker's instructions.

What stays with you

  • Anything this page lists under what arrives and what does not. For an outdoor cabin that is usually the base.
  • Electrical work. The installer does not do it. Where the product needs its own circuit, a qualified electrician runs, connects and certifies it, because outdoor circuits and rooms containing a sauna heater are notifiable work in England.

Why £650 is a guide, not a price

  • It is where installation typically starts. The installer's figure for your order depends on the size of the cabin, how far the parts have to be carried from the kerb, and how far they travel to you.
Delivery included, mainland Britain

Delivery

Delivery included, mainland Britain

Where it applies

The Scottish Highlands, islands and hard to reach addresses are quoted before dispatch.

When it arrives

Estimated 10 to 14 working days from order. We confirm stock and your delivery date in writing when we process your order.

Why a sauna takes weeks

How this one arrives

Delivery to a mainland UK address is in the price. The cabin arrives on one pallet, set down at the kerb or the nearest firm, level spot the driver's pallet truck can reach; a pallet truck does not cross gravel, grass or a step. From there the parts move by hand, and this is a three to four person job rather than a two person one. We confirm the delivery arrangement for your address in writing when we process your order.

Offshore addresses, the Scottish Highlands and islands, and any address a lorry cannot reach are quoted separately before you order.

Installation is not in the price. It can be arranged for your site where you would rather not build it yourself, and the cost is confirmed before anything is delivered.

Warranties honoured properly Fair, clear returns
  • 6kW stove and stones included
  • Covered terrace with two seats
  • 26.1A at 230V, dedicated circuit
What you're buying
Cabin
Thermally treated pine, 2,050mm wide, 2,100mm deep including the covered terrace, and 2,200mm tall
Terrace
A covered cool down terrace in front of the glass, with a seat either side
Inside
Two tiers of abachi benches for four to six seated, or two lying down, with seven colour LED lighting
Heater
A 6kW stove with its stones
Glass
8mm tempered, tinted glass door, and a half moon window in the rear wall
Kit
Bucket, ladle, sand timer, thermometer and hygrometer
Electrics
A dedicated radial circuit in armoured cable, wired and certified by an electrician
Delivery
One pallet, to the kerb

The Hestia with a covered terrace built in front of the glass: somewhere to sit out of the rain between rounds, under the same roof. 2.05 metres wide, 2.1 deep and 2.2 tall, four to six seated inside, with the 6kW stove and its stones in the price.

Delivery & installation

Delivery is included in the price, kerbside to mainland Britain: England, Wales and mainland Scotland. The Scottish Highlands, islands and any address a lorry cannot reach are quoted in writing before dispatch, and if the figure does not suit you, cancel for a full refund. Northern Ireland: write to us before ordering. Nothing is added at checkout.

Delivery to a mainland UK address is in the price. The cabin arrives on one pallet, set down at the kerb or the nearest firm, level spot the driver's pallet truck can reach; a pallet truck does not cross gravel, grass or a step. From there the parts move by hand, and this is a three to four person job rather than a two person one. We confirm the delivery arrangement for your address in writing when we process your order.

Offshore addresses, the Scottish Highlands and islands, and any address a lorry cannot reach are quoted separately before you order.

Installation is not in the price. It can be arranged for your site where you would rather not build it yourself, and the cost is confirmed before anything is delivered.

Warranty

Four years on the timber and two years on the electronics, the terms Holl's publish for the Hestia range.

The UK distributor administers the warranty and raises claims with the maker where needed. The cabin is sold for home use: commercial or very frequent use can affect cover.

Claims come to us. One email, and we deal with the distributor and the maker on your behalf rather than handing you a phone number.

Returns

Until the order is placed with the supplier you can cancel and be refunded in full, with no reason needed. Your statutory cancellation rights are set out in full in our returns policy.

Check the pallet on the day it arrives, count the parts against the list in the manual, and tell us about anything damaged or missing within 48 hours with photographs. Anything that arrives damaged or faulty is ours to put right. Do not book an electrician or an installer for a fixed date until the delivery has arrived and been checked.

Downloads
About this product

The Hestia Lounge 210 is the Hestia outdoor cabin with a covered terrace built in front of the glass door: a porch under the same roof with a seat on each side, so there is somewhere dry to sit between rounds. It is 2,050mm wide, 2,100mm deep including the terrace, and 2,200mm tall.

Inside, two tiers of abachi benches seat four to six, or two lying down, with seven colour LED lighting. The structure is thermally treated pine, the door is 8mm tempered, tinted glass, and a half moon window sits in the rear wall. The 6kW stove and its stones are in the price, with the bucket, ladle, sand timer, thermometer and hygrometer.

At 2.2 metres it sits under the 2.5 metre height permitted development allows within 2 metres of a boundary, so on most plots it needs no planning application. The stove draws about 26 amps, so it needs a dedicated circuit in armoured cable, sized, fitted and certified by an electrician. It arrives on one pallet to the kerb and stands on a flat, hard base you lay first.

How your payment is handled
  • Secure paymentProcessed by Shopify Payments over an encrypted connection.
  • Your details stay privateCard details are never stored on a Tarnfell system.
  • Payment on confirmationWe take payment only once your order is confirmed.
  • 14 day cancellation rightsCancel within 14 days of delivery, under the Consumer Contracts Regulations 2013.
Is this the right one for you

Who this is actually for.

Every product here is described with the honest opposite beside it: who it suits, and who should be looking at something else. If none of the descriptions below fits you, the right answer is elsewhere in the range, or elsewhere entirely, and we would rather say so.

You want somewhere to cool down that is not the lawn

The terrace is what the Lounge adds. It is a covered porch in front of the glass door with a seat on each side, so between rounds you sit outside, in the air, under the roof, rather than standing in the rain or walking back to the house. Inside, two tiers of abachi benches seat four to six, or two lie down. The 6kW stove, its stones, the glass and the lighting are all in the price.

Worth confirmingyou have a hot tub, a plunge or a shower right beside where it will stand. Then the terrace is doing a job something else already does, and the Hestia 160 is the same room for less money and half a metre less depth.

You have a firm base 2.05 by 2.1 metres and an electrician who can run a dedicated circuit

It arrives on one pallet and goes together on a flat, hard, level base that you lay first, which has to run under the terrace as well as the room. The 6kW stove draws about 26 amps, so it needs a dedicated circuit of its own in armoured cable, which is an electrician's job and a notifiable one in England.

Worth confirmingyour supply cannot take another dedicated circuit of this size. That is a real limit in some houses, not a formality, and an electrician can tell you in one visit. If the answer is no, an infrared cabin indoors runs from an ordinary socket and we would rather point you there.

The product that gets used is the one worth recommending, and it is not always the largest one.

Will it work where you are

The measurements that decide it.

Read this before anything else. Things this size are almost never sent back because they were the wrong product. They are sent back because the pallet could not be set down, the parts would not reach the spot, or the ground under them was never going to hold them.

Footprint2.05m wide, 2.10m deep including the terrace, on the maker's figure
Height2.20m
Base requiredFlat, load bearing hard standing at least 2.05 x 2.10m, laid before the pallet arrives
Electrical supplyA dedicated radial circuit in armoured cable on a 30mA RCD, for the 6kW stove
DeliveryOne pallet to the kerb.
Glazing8mm tempered glass across the front, and a half moon window in the rear wall
Planning positionUnder 2.5m, so permitted development usually applies even within 2m of a boundary, base permitting

Plan the base for the whole footprint, terrace included. The covered seats stand on the same base as the room, so 2.05 by 2.1 metres has to be flat, hard and level. From wherever the pallet stops the parts are carried by hand, and the glazed door and rear window are the ones to plan the route for.

Check your garden in seven questions Free, instant, and it will tell you plainly when this is the wrong answer for your space.
What actually happens

From order to first use.

Here is each stage, and who does what. Delivery is estimated at 10 to 14 working days from order. If you would rather have stock, the date or anything else settled first, email hello@tarnfell.com before you order and we will confirm it in writing.

  1. Week 0

    Order and site check

    Base, access and your electrical supply are agreed before the order is placed with the distributor. You arrange the base and the circuit. There is nothing to configure on the cabin itself.

  2. Before it arrives

    The base and the circuit

    A flat, hard, level base at least 2.05 by 2.1 metres, and an electrician runs a dedicated circuit to it in armoured cable and leaves it ready to terminate. Outdoor circuits and rooms containing a sauna heater are notifiable work in England, so this is not a job for a competent friend.

  3. Delivery day

    One pallet, set down at the kerb

    The cabin arrives on one pallet at the kerb or the nearest firm, level spot the pallet truck can reach. Count the parts against the list that day and photograph anything damaged. Moving the parts to the base is a three to four person job.

  4. Build

    Base frame, walls, glazing, benches

    The frame goes down on the base, then the wall sections, the glazed door and the rear window, the terrace and its seats, then the two tiers of benches inside, working from the maker's instructions. Three to four people. If you would rather hand it over, installation can be arranged for your address once you have ordered.

  5. Before first use

    The electrician returns

    The stove is fitted, connected and the circuit tested and certified. You should be handed a certificate. Then the stones go in, loosely, and the first heat cycle burns off the factory smell with the door open.

Living with it

What owning one actually involves.

The handful of things that decide whether this is still in use in year three.

The baseYours to provide, hard and level

A flat, load bearing slab or paved base at least 2.05 by 2.1 metres, laid before the pallet arrives, running under the terrace as well as the room. A base that settles takes the door out of square. The base is not included.

PowerA dedicated circuit of its own

6kW at 230V is 26.1 amps, which is beyond any plug and socket, so the stove runs on a circuit of its own in steel wire armoured cable, protected by a 30mA RCD and certified by an electrician before first use. Worth knowing before you order: a 26 amp addition is the same class of load as an electric vehicle charger, and not every house supply has the headroom.

The timberHeat treated pine, and it will silver

The pine is treated with heat rather than chemicals, which is what makes it stable outdoors, and the abachi benches stay cool enough to sit on at 90 degrees because abachi carries almost no resin. Left alone the outside silvers over a few seasons. Oil or stain it and you keep the colour, at the price of recoating every year or two.

The terraceCovered, and it changes how you use it

A sauna gets used in February when there is somewhere dry to sit between rounds. The terrace is roofed by the same shingle as the room and has a seat on each side of the door. It is outside the heated space, so it costs nothing to run.

Holl's Hestia Lounge 210 outdoor sauna on a stone patio, glass door facing a mountain lake at sunset
Holl's Hestia Lounge 210 outdoor sauna, front view through the terrace to the glass door
Holl's Hestia Lounge 210 outdoor sauna, three quarter view with covered terrace seats
Holl's Hestia Lounge 210 outdoor sauna, three quarter view from the other side
Holl's Hestia Lounge 210 outdoor sauna, rear view with half moon window
Holl's Vulkano Black electric sauna heater with stones
What it costs to live with

The running costs, with the working shown.

The purchase price is public; the running cost rarely is. Ours are published with the assumptions stated, so you can check the arithmetic and change it for your own tariff.

A sauna session, 6kW

about £2.35

Heat up: 6kW for an hour is 6 kWh, for a heated room of about 7.2 cubic metres with a glazed door and a rear window. Holding: 1 hour at roughly 50% duty is 3 kWh. Total 9 kWh at 26.11p is about £2.35.

Twice a week for a year

about £244

104 sessions at £2.35. The terrace is outside the heated room, so it adds nothing to the running cost.

The stones

a few pounds, every few years

Sauna stones crack and crumble with use, are restacked yearly and replaced when they do. They ship with the stove and they are the only consumable part.

Assumptions: electricity at the Ofgem price cap unit rate of 26.11p per kWh, 1 July to 30 September 2026, including VAT. Figures are calculated from the stove's rated output of 6kW, not measured on an installed cabin. One hour is our working figure for heat up, for a single skin outdoor room of about 7.2 cubic metres with two glazed faces. On a cold, windy night the real figure sits above these numbers rather than below them.

Owning it properly

What you have to do, and what the rules require.

Everything you have to do, and how often.

Job How often Who
Install and certify the stove circuit 6kW draws 26.1A at 230V, so a dedicated radial in steel wire armoured cable on a 30mA RCD. Outdoor circuits and rooms containing a sauna heater are notifiable work in England. Once, before first use A qualified electrician
Lay the base A flat, load bearing slab or paved base at least 2.05 x 2.10m, terrace included, able to carry the cabin plus the people in it. Once, before delivery You, or a groundworker
Build the cabin Frame, wall sections, glazed door, rear window, the terrace and its seats, and the two tiers of benches, following the maker's instructions. Three to four people. Once, over a weekend You and two or three others, or an installer
Restack and inspect the stones Lift them out, discard any that are cracked or crumbling, and restack loosely so air moves between them. Tightly packed or broken stones make the elements work harder. Yearly You
Dry it out after wet weather Heat the cabin after rain and once a month if it is standing unused, to keep surface mould off the timber. Air it after every session. After rain; monthly when idle You
Oil or stain the outside, if you want the colour kept Heat treated pine silvers if left alone, which harms nothing. Oil or stain it and recoat every year or two in an exposed spot. The inside stays bare. Every year or two, if you want the colour kept You, an afternoon
Check the door and glass seals A cabin that heats and cools moves, and a base that settles takes the door out of square. Check the door closes cleanly and the glazing beads are sound at the start of each season. Yearly You

Where this comes from.

Regulation and guidance, linked so you can read it yourself. None of it is our opinion.

Specification

Every figure the makers publish.

Warranty
4 year wood, 2 year electrical warranty
Lead time
Estimated 10 to 14 working days from order. We confirm stock and your delivery date in writing when we process your order.

Cabin figures are from Holl's own specification sheet for the Hestia range, supplied by the UK distributor, and the distributor's product page. Where a figure is ours rather than the maker's, it says so.

In the price

What arrives, and what does not.

  • The cabin: the thermally treated pine structure, the tinted glass door, the rear window, the covered terrace and its seats, the two tiers of abachi benches and every fixing
  • The 6kW stove and its stones
  • Seven colour LED lighting, and the bucket, ladle, sand timer, thermometer and hygrometer
  • Delivery on one pallet to the kerb at a mainland UK address
  • Four years of the maker's warranty on the timber and two on the electronics
  • One point of contact for the order, the delivery and anything that goes wrong: us
  • The base. A flat, load bearing slab or paved area at least 2.05 x 2.10m, under the terrace as well as the room
  • The electrical work. A circuit in armoured cable, run, terminated and certified by an electrician
  • Assembly, unless you ask us to arrange it
  • Moving the pallet beyond where the pallet truck stops. From there the parts are carried by hand
  • Stain or oil for the outside. Left alone the pine silvers, which harms nothing
  • Delivery to offshore and remote postcodes, which is quoted before you order
Before you commit

Reasons to buy something else.

Nothing can set a pallet down outside your property

Delivery is by lorry to the kerb. A shared private road, steps to the kerb, a gravel drive or a double parked frontage all need solving before you order, not on the day. From wherever the pallet stops, every part moves by hand.

Your supply cannot take another dedicated circuit

The stove will not run from a socket. A 26 amp load on its own circuit is the same class of addition as an electric vehicle charger, and whether your house can take it is a calculation an electrician does on site rather than something anyone can promise from a web page. If the answer is no, an infrared cabin indoors runs from an ordinary socket and we would rather point you there.

You already have somewhere to cool down beside it

A shower, a plunge or a hot tub a step away does the terrace's job already. Then the Hestia 160 is the same room for less money and half a metre less depth, and we would rather point you there.

You want a cabin that holds its heat through a British winter

A single skin timber shell with two glazed faces loses heat far faster than an insulated wall. This cabin heats and cools quickly, and in January the 6kW stove is working hard to hold 80 degrees. If year round evening use at the lowest running cost is the aim, an insulated cabin costs more for exactly that reason.

If any of these apply, say so and we will point you at what does suit you, including when that is a cheaper product or one we do not sell.

The Tarnfell Standard

What we know, and how we know it.

Where every figure on this page comes from, with the source beside it.

Verified by Tarnfell against a published source Confirmed by the manufacturer in writing
Dimensions, timber, glazing and what is supplied
Verified

Taken from Holl's specification sheet for the Hestia range and the UK distributor's product page, which agree on 205 x 210 x 220cm, the thermally treated pine structure, the abachi benches, the 8mm tinted glass door, the half moon rear window, the terrace and the bucket, ladle, sand timer, thermometer and hygrometer.

Electrical supply
Verified

6,000 watts at 230 volts is 26.1 amps, which is arithmetic rather than a claim, and it puts the stove beyond any plug and socket and onto a dedicated circuit. Steel wire armoured cable and a 30mA RCD are what an outdoor circuit requires under BS 7671. The cable size itself is the installer's calculation on site and this page does not state one.

Weight, pallet and assembly

Three to four people is the figure the UK distributor gives for handling. The distributor's guidance for this range is 10 to 14 working days, which is the estimate on this page, and we confirm your date in writing when we process your order.

Warranty administration

Four years on the timber and two on the electronics are the maker's published terms. Claims run through the UK distributor, which raises them with the maker where needed, and you deal only with us. The cabin is sold for home use: commercial or very frequent use can affect cover.

Before you decide

Weighing this against another sauna? Let us do the homework.

Choosing between two saunas takes evenings of research, so let us carry it. Name the other one you are considering and we will send a straight comparison, including where the other one wins.

Free, no obligation, and your details go nowhere else.