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Electrician in Stockholm

Install a sauna heater in Stockholm

New heater or replacing the old one — we connect it safely with the right connection box and sizing, ready for the first sauna the same evening. Whether the sauna is in the house's basement, a terraced house or a shared sauna in a housing association, we provide a fixed price with the ROT deduction applied.

Heat and electricity impose special requirements

A sauna combines high heat and high power — therefore the connection box must withstand the temperature, the cable must be the right type and the heater must have the right circuit breaker in the consumer unit. We check the whole picture at replacement, not just the connection itself, so the sauna is as safe as it is enjoyable.

Replacing a sauna heater — can the existing cable be reused?

Often, but not always. A new heater with the same power output can usually be connected to the existing cable, while a step up in output — for example from 4.5 to 8 kW — may require a heavier cable and a different circuit breaker in the consumer unit. We check the nameplate of both heater and cable before connection so you receive clear information instead of a surprise.

What output does the sauna heater need?

A rule of thumb is roughly one kilowatt per cubic metre of sauna, with a margin upwards for glass doors or uninsulated exterior walls. A family sauna of four to six cubic metres often lands around 6 kW, while larger sauna rooms need 8 kW or more. If you are unsure, write the dimensions in the booking and you will get advice before the visit.

Sauna in a flat or terraced house — the consumer unit sets the limit

In flats and terraced houses it is often the consumer unit and the subscribed main fuse rating that determine how large a heater fits, not the sauna's size. An older consumer unit may lack a spare circuit with the right breaker, and in a housing association flat you also need the board's approval for the work. We ensure the heater gets a circuit the property can actually handle and advise if the consumer unit needs to be supplemented before we connect.

Switching from wood-fired to electric?

Change from wood-fired to electric and you can forget the chimney sweep and the waiting time — an electric heater is ready in under an hour. You are welcome to choose and buy the heater yourself; we handle the connection and make sure the installation meets the requirements that apply in a sauna.

Frequently asked questions

Can I install a sauna heater myself?

No, the permanent connection must be made by a qualified electrician. Benches and wall panels you can fit yourself, but the connection, junction box and any new circuit in the consumer unit are electrician's work.

How long does the installation take?

A swap on the existing cable normally takes an hour or so. If new cable or a new circuit is needed it takes longer — you will be told the full picture before work begins.

Is the sauna heater included in the price?

No, you buy the heater yourself. The fixed price covers the installation with connection box and standard materials, with the ROT deduction already applied.

Can you install a heater in a shared sauna in the association?

Yes, replacements and installations in shared saunas in housing associations are common jobs. Make sure you have board approval and describe the conditions in the booking so the electrician brings the right materials.

How the ROT deduction works — conditions, amounts and what does not qualify

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