Twenty questions about cold, heat, power and paperwork, answered in plain words

A built-in pool with its refrigeration lands between 330k and 660k baht depending on shape, finish and access: round THB 330⁠-⁠590k, square with a travertine edge THB 370⁠-⁠660k. The budget ranges page shows every component.

The solo cabin, one seat, 1.2 x 1.1 m, at THB 205⁠-⁠275k with a Harvia heater. A two-seat glass cabin starts near 275k baht. We build up to twelve seats.

Either. The website shows baht with a dollar hint at 36 baht per dollar; contracts for resorts and developers are often written in dollars, with the exchange date agreed at signing.

Slab and structural works, cranes, a three-phase electrical upgrade, permits and VAT. Each appears as its own line in the quote, so nothing arrives later as a surprise.

Yes, if the chiller is sized for it and the pool is shaded and insulated. Our sizing table assumes 35 °C air: one horsepower holds up to 260 litres, two hold 570, four hold 1,200. A pool in full sun with no pergola asks for more, and the layout tells you.

A cubic metre of water from about 29 °C to 4 °C means removing about 29 kWh of heat, so plan an overnight run for the first fill. After that the unit only holds the temperature, which is why we put it on a timer.

Anything colder than the air's dew point sweats. In 32 °C air at high humidity the dew point is near 28 °C, so pipes are lagged with closed-cell insulation, coping is textured stone and the drains are sized for it.

It does. The glass is tempered, often double-glazed on sun-facing walls, and the heater is sized with an allowance for the glass. The sauna itself is a dry room; humidity outside changes how you ventilate it, not whether it works. See glass saunas in the tropics.

Teak outside and on trim, cedar or similar low-density timber on benches, because very dense wood feels hotter on bare skin. The teak and thermowood note explains the choices.

A 4.5 kW heater runs on a single-phase circuit (typically 220⁠-⁠230 V in Thailand). From about 8 kW heaters are normally wired three-phase (typically 380⁠-⁠400 V), which many villas and condos have to ask their utility for. Details in sauna power in Thailand.

That depends on the structure, the plot and the local office, and we do not guess. Ask your municipality, tambon administrative office or, in Bangkok, the district office whether a small outdoor structure or a pool this size needs a building permit or only a notification. We supply drawings for that conversation.

A two-page dossier: plan, structural loads, power, noise and maintenance. The condo guide lists what committees ask.

Five working days for the free 3D layout, six to ten weeks of production, up to seven days of installation. Count about three months from signature to the first cold plunge.

The busy months run from November to April, so the quiet window to build is May to October. On the Andaman coast that is also the monsoon, so we sequence wet works around the weather, as the Phuket page explains.

Yes. Phuket is connected by road; Samui adds a sea leg. We plan the route, the crating and the lifting before production starts and put it in the layout.

No. Cold water can be dangerous for people with heart or circulation problems, and sauna heat has its own cautions. Ask your doctor, start with short sessions and never plunge alone after alcohol. We build the equipment and hand over a plain safety notice for the pool area.

Not as a routine. Children need much shorter, cooler sessions with an adult present, and cold plunges are not for them. The handover notice says so in the language of your guests.

Everything we build for two years, plus a further year of assisted service visits. Harvia heaters also carry their maker's own warranty.

Start with photos and a video call, which fixes most things quickly; where a visit is needed, it is scheduled through the first-year service plan. The handover sheet tells your housekeeping team what to check weekly.

Yes. The cold side is built for up to sixteen hours of use a day, with two chillers in parallel on shared pools, a hygiene plan and a written routine. See hospitality and clubs.