Harvia Panorama: 4 to 5 Person Indoor Sauna
One cabin in three sizes, and the size you pick decides the electrician's bill as much as the price.
From £5,760.00
Free standard delivery on orders placed by 30 September 2026
Delivery from £250 on orders placed after that
Exact cost confirmed for your postcode before dispatch.
Typically 8 to 10 weeks, depending on availability and the season. Email us for a current date, or we confirm yours when you order.
- A heater sized to the cabin, with its controls built in, in the price
- Warm white lighting fitted, or Harvia's RGBW colour set built into the roof line
- 16A, 35A or 50A single phase, depending on the size you choose
- Cabin
- Spruce element cabin, 65mm walls of 12.5mm tongue and groove boards
- Inside
- Lime wood Emotion interior, two upper benches and one lower, backrests and headrests
- Heater
- Included and sized to the cabin: 3.6kW on the Mini, 8kW on the Small, 9kW on the Large
- Controls
- Built into the heater, so there is no separate panel to wire or learn
- Electrics
- 16A on the Mini, 35A on the Small, 50A on the Large, all single phase
- Glass
- 8mm toughened door and front elements, hinged left or right on site
- Lighting
- Warm white as standard, or Harvia's RGBW colour set built in
- Also included
- Floor grid, heater guard, ventilation slit, and the silicone cables
Three sizes of the same cabin, and the honest way to choose is backwards: start with the circuit your house can give an electrician, then pick the size that fits it.
Delivery & installation
Delivery is available across the UK and the charge is confirmed for your postcode in writing before anything is dispatched. Offshore and some remote postcodes cost more, and we tell you the figure before you commit rather than after.
The cabin arrives flat, as wall, roof and glass elements with the benches, heater and fittings boxed separately. The number of packages and their weights are being confirmed with the distributor and are not published here until they are, because on an indoor cabin the question that decides everything is whether the largest element turns your stairs.
Installation can be arranged where you would rather not build it yourself. Once you place your order we confirm the delivery and installation options for your location, and nothing is dispatched until you are happy with both.
Warranty
Two years on the cabin against manufacturing defects, and two years on the heater and its built in controls, under Harvia's published warranty terms. Registering the heater with Harvia adds a third year on it, and it is worth doing on the day the electrician signs off rather than remembering it in year three.
Harvia name the exclusions plainly, and they are the parts that wear: heating elements, timers, relays, light bulbs and sauna stones. Anything caused by not following the installation, use or maintenance instructions is excluded too, which on an indoor cabin usually means the ventilation or the electrical connection rather than the cabin itself.
The warranty runs from the date of purchase. Harvia's own terms allow a claim to be made to the seller, so claims come to us. One email, and we deal with the distributor and Harvia 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.
After that the cabin is on its way from the factory, and our returns policy sets out exactly where that leaves you. Check the packages against the parts list on the day they arrive and tell us about anything damaged or missing straight away; anything that arrives damaged or faulty is ours to put right either way.
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.
Harvia sell these cabins without a heater and leave you to size one. This does not: each size ships with the right output and the controls built into the heater, so there is one price, one order and nothing to specify.
Worth confirmingyou already own a heater you like, or you want a particular control system. Then a cabin on its own and a heater bought separately is the cheaper and better route, and we will say so.
The Mini asks for 16 amps, which most consumer units can find. The Small asks for 35 and the Large for 50, which is the same order of work as an electric shower. Deciding this first saves choosing a cabin you cannot power.
Worth confirmingthe consumer unit is full and the run is long. The Mini is then the sensible answer rather than the compromise, and at 4.5 cubic metres it is a real sauna, not a token one.
The product that gets used is the one worth recommending, and it is not always the largest one.
The measurements that decide it.
Read this before anything else. An indoor cabin is almost never sent back because it was the wrong product; it is sent back because it would not go up the stairs or stand up in the room.
All three sizes stand 2.01m tall, so the finished cabin fits a normal room. The height you need is the height to build in, which is more, because the wall elements are tipped upright during assembly.
From order to first use.
Here is each stage, and who does what. Before you order, email hello@tarnfell.com and we will confirm the current lead time and the delivery cost for your postcode in writing.
- Week 0
Size and circuit agreed
Pick the size against the circuit an electrician can actually give you, not the other way round. Ceiling height, floor and access are checked at the same time.
- Before it arrives
The circuit
16A for the Mini, 35A for the Small, 50A for the Large, single phase, run to the heater position and left ready to terminate. A room containing a sauna heater is notifiable work.
- Delivery day
To the door, in elements
Wall, roof and glass elements with the benches, heater and fittings boxed. Check everything against the parts list on the day; that is the easy time to find a shortage.
- Build day
Two people, working from the manual
Elements up, glass in, roof on, benches and heater guard fitted, then the heater hung and the floor grid laid. We can arrange installation instead.
- Before first use
The electrician returns
The heater and the lighting are terminated and the circuit tested and certified. You should be handed a certificate.
What owning one actually involves.
The handful of things that decide whether this is still in use in year three.
Every size ships with the controls built into the heater itself. Fewer parts, nothing extra to wire, and no app. If you want scheduling or a phone, this is not the cabin for it and we would point you elsewhere rather than sell you an upgrade path that does not exist.
Warm white is fitted and working on the day it is built. The colour option is Harvia's own RGBW set for this cabin, sized to it, built into the roof line rather than stuck on afterwards, and run from its own remote. Both arrive with the cabin.
The RGBW set is matched to the cabin size and is fitted while the roof is open. Adding it afterwards means taking the roof line apart again, which is why it is a choice on this page rather than something to come back for.
Spruce swells and shrinks with the seasons and can weep resin from a pitch pocket when it is heated. Acetone on a rag takes it off. It is the wood behaving, and Harvia say so in their own instructions.
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.
about £1.32
Heat up 3.6 kWh, then an hour holding at roughly 40% duty is 1.44 kWh. Total 5.04 kWh at 26.11p.
about £2.92
Heat up 8 kWh, then an hour holding at roughly 40% is 3.2 kWh. Total 11.2 kWh. The room is larger, so it holds heat better once it is there.
about £3.29
Heat up 9 kWh, then an hour holding at roughly 40% is 3.6 kWh. Total 12.6 kWh. Twice a week for a year is about £342 against £137 for the Mini.
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 each heater's rated output, not measured on an installed cabin. An indoor cabin inside a heated house loses far less than a garden one.
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 circuit Mini: Delta D36, 230V single phase, 16A, 3 x 2.5mm2. Small: The Wall SW80, 230V single phase, 35A, 3 x 6mm2. Large: The Wall SW90, 230V single phase, 50A, 3 x 10mm2. Harvia supply 3 metres of 5 x 2.5mm2 silicone cable for the heater and 3 metres of 3 x 1.5mm2 for the light. Notifiable work in England and Wales. | Once, before first use | A qualified electrician |
| Restack and inspect the stones Lift them out, discard any that are cracked or crumbling, and restack loosely so air moves between them. | Yearly | You |
| Air it after use Leave the door open and the ventilation slit clear until the room is dry. | Every session | You |
| Wipe the benches down A damp cloth and warm water only, nothing film forming. | Monthly, or after heavy use | You |
| Heat it even when you are not using it Harvia recommend a heating cycle roughly monthly if the cabin stands idle, to keep mould out of the timber. | Monthly when idle | You |
Where this comes from.
Regulation and guidance, linked so you can read it yourself. None of it is our opinion.
- A room containing a sauna heater is notifiable electrical workApproved Document P, 2013 edition
- A sauna heater must not be protected by a residual current device, while other circuits in the room must beBS 7671 regulation 703.412.5
- The Wall SW80 is 8kW, 230V single phase, 35A, 3 x 6mm2Harvia, The Wall SW80 product data
- The Wall SW90 is 9kW, 230V single phase, 50A, 3 x 10mm2Harvia, The Wall SW90 product data
- Delta D36 is 3.6kW, 230V single phase, 16A, 3 x 2.5mm2Harvia, Delta D36 product data
- Electricity unit rate of 26.11p per kWh, 1 July to 30 September 2026Ofgem energy price cap
Every figure the makers publish.
- Warranty
- 2 year cabin and heater warranty
Cabin figures are from Harvia's own data sheets for the Panorama Mini (1-054-142), Small (1-030-309) and Large (1-038-850). Heater figures are Harvia's published data for the Delta D36 and The Wall SW80 and SW90. Where a figure is ours rather than theirs, it says so.
What arrives, and what does not.
- The cabin as spruce elements with the roof element and its rim
- The 8mm toughened glass door and front glass elements, hinged to either side
- The lime wood Emotion interior: benches, backrests, headrests and the intermediate bench panel
- A heater sized to the cabin, with its controls built in, and the heater protection grille
- The lighting you choose, fitted: warm white as standard, or Harvia's RGBW colour set for this cabin size with its driver, power supply and remote
- Floor grid, ventilation slit, and 3 metres each of heater and lighting silicone cable
- The electrical work. A dedicated single phase circuit, run, terminated and certified
- Assembly, unless you ask us to arrange it
- Delivery. It is quoted for your postcode and confirmed in writing before dispatch
Reasons to buy something else.
The Small and Large need the same order of supply as an electric shower. If that is not available, the Mini at 16 amps is the honest answer rather than a downgrade.
The controls are built into the heater. There is no app, no WiFi and no way to add one. Say so now and we will point you at a cabin with a separate control unit.
It is a real difference in price, between £840 and £1,158 depending on size. If the colour is what you want, buy it here; if it is not, the warm white cabin is the same sauna for less.
A timber cabin in a damp room is a mould problem waiting to start. Fix the room first; we would rather lose the sale.
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.
What we know, and how we know it.
Not a rating. A record of where every figure on this page comes from: what we have checked against a published document, what a maker states and we have not yet checked, and what is still open.
- Dimensions, volume and capacity
-
Verified
Sizes, room volumes, person counts, wall thickness, bench and glass dimensions are all taken from Harvia's own data sheets for the three cabins, by article number.
- Electrical supply by size
-
Verified
The 16A, 35A and 50A figures are Harvia's published data for the Delta D36, The Wall SW80 and The Wall SW90, the three heaters supplied with these cabins.
- Which heater ships with each size
-
Information not yet published
The distributor's 2026 list names a Delta 3.6kW on the Mini and The Wall at 8kW and 9kW on the Small and Large, all with built in controls. Harvia's own photographs of the Small and Large show a different, floor standing heater, so we are confirming the supplied model in writing before this page becomes buyable.
- Lighting
-
Verified
The RGBW option is Harvia's own LED set for this cabin, one part number per size: 3 LED tubes with driver, power supply and remote on the Mini and Small, 5 tubes on the Large.
- Weight, packages, warranty and lead time
-
Information not yet published
None of these appear on Harvia's data sheets for this cabin. All four are being confirmed with the distributor and are not published here until they are.
These states move as the evidence does. When a figure is measured on an installed cabin, by us or by an owner who will let us, it moves from stated to verified and this section says so.
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.