Size the gear before you buy it.

Calculators and a spec database for home cold plunge, sauna and red light equipment: what size you need, what it costs to run, and how the units compare on the numbers the brands publish.

Cold plunge

Chiller sizing by tub volume, target temperature and where it sits. Every tub and standalone chiller with its stated capacity, draw and price.

Chiller sizer in build

Sauna

Heater kilowatts for your room, the 240 V circuit and breaker it needs, and running cost at your electricity rate. Infrared and traditional side by side.

Red light

Coverage area at a given distance and panel specs normalized to the same measurement, with every independent test linked to its source.

Later