Today I started an interesting project in Caversham, Reading, bringing electricity to a newly built garden cabin that will accommodate a sauna and a separate hot tub area.
The building went up last week, so this is the stage where the electrical installation starts turning it into a usable space. My work includes the main supply from the house, a small distribution board, the sauna equipment, lighting and a dedicated supply for the hot tub.
Unfortunately, the weather had its own plans for the first morning. It poured with rain until about midday, which made for a slow start and a rather muddy garden by the afternoon.
Getting ready while the rain came down
The morning was mainly spent preparing the job, bringing in tools and cable, marking positions and organising what I could before getting properly underway outside.
On a project like this, there’s quite a bit to think through before fixing anything in place. The main cable route, equipment positions and connections between the sauna components all need planning together.
It’s tempting to focus on the heater and hot tub because they’re the parts everyone is looking forward to using. But first, I need to get a suitable electrical supply from the house to the far end of the garden.
Once the rain eased, I could make more progress. I stayed until just before seven in the evening to catch up a little. It wasn’t quite the start I’d hoped for, but the preparation was useful, and the installation is now taking shape.
A substantial cable run through the garden
The main supply will come from the meter box on a dedicated circuit, with approximately 35 to 40 metres of cable running to the new building.
For this installation, I’m using 16 mm² two core steel wire armoured cable, with a separate earth rod planned at the back of the sauna as part of the earthing arrangement.
Much of the cable route will follow the fence behind the planting. That should help keep it discreet, although working behind plants takes a little more patience than running cable along a clear wall.
A garden cable route is rarely just the straight line you see when looking out of the kitchen window. There are corners, changes in level and access around existing features to consider. With a substantial cable like this, handling and positioning it is a job in itself
If you’re planning a garden sauna or hot tub, get in touch while the layout is still being decided. Looking at the electrical supply and cable route early helps you understand what needs preparing before the equipment arrives.
Wiring the sauna equipment
The sauna uses a HUUM system, with a heater, control unit, sensors and a door sensor. I’ve already mounted the heater and started some of the smaller wiring connections.
This is an interesting change from the heavier work of running the main supply. There are several components to connect, and each has its own position and purpose within the system.
The control wiring needs just as much care as the main power connections. Sensor cables are small, but their routing and connection matter to how the finished system operates. I’m working through the equipment instructions alongside the installation so everything is connected as intended.
That variety is one of the things I enjoy about this project. One part of the day involves moving a heavy armoured cable through a wet garden, and another involves careful work with small terminals and sensor wires.
Lighting beneath the benches
The sauna will also have LED strip lighting underneath the benches. It’s a detail I’m looking forward to seeing finished, because the light source will be tucked away while illuminating the lower part of the room.
With sauna lighting, the location and suitability of the components need considering alongside the appearance. The strips, connections and power supply all need to suit their intended positions and the equipment instructions.
At this stage, I’ve started the lighting work, but there’s still more to connect before we can see the final effect.
Separate circuits for the different areas
A small distribution board will be installed at the back of the sauna, providing three circuits: one for the lighting, one for the sauna system and one for the hot tub.
The hot tub will sit in the adjoining open area, with its own dedicated supply from that board.
There’s still plenty to do, but it’s good to have the first day completed. Hopefully, the next visit will involve a little less mud and a little more progress with the wiring.
If you’re planning electrical work for a garden building in Caversham, Reading or the surrounding area, feel free to get in touch. I’m happy to look at your plans and discuss the supply, lighting and equipment connections.
