Designed in the UK
Thoughtfully crafted to deliver a product that’s built to perform and made to last.


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A mid-power 5 kW spa heater/chiller built for medium spas, cold plunge systems and high-demand home wellness spaces. Delivers fast heating, deep cooling and low running costs.
The PortaSauna X Poolex 5 kW Spa Heater & Chiller delivers the ideal balance between power, speed and efficiency. Developed with Poolex, one of Europe’s most respected manufacturers, this heat pump brings professional-grade spa temperature control to your garden.
The 5 kW unit is ideal for PortaPlunge TWIN, PortaSauna HEX, medium-size spas, and swim spas requiring stable heating or cooling throughout the year. Using Poolex Full Inverter technology, it maximises efficiency, reduces energy consumption and provides whisper-quiet performance.
Perfect for homes wanting dependable sauna-to-plunge contrast therapy, or spa owners who need consistent temperatures with minimal running costs.
Our team is always happy to help, give us a call for support & advice.
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When you buy a PortaPlunge, you’re not just getting a plunge – you’re joining a warm, welcoming community of sauna and plunge lovers.
8K FollowersFor any additional queries, contact us at 02392 984 667or hello@portasauna.co.uk.
Yes, we ship all over the world. Shipping costs will apply, and will be added at checkout. We run discounts and promotions all year, so stay tuned for exclusive deals.
It depends on where you are. Orders processed here will take 5-7 business days to arrive. Overseas deliveries can take anywhere from 7-16 days. Delivery details will be provided in your confirmation email.
PortaPlunge can be used indoors or outdoors on any flat surface. Avoid sharp objects and ensure stable ground before filling.
Under 5 minutes using the included hand pump.
8 cm thick drop-stitched, heat-sealed premium PVC — the same grade used in high-pressure paddleboards.
Use the integrated drain valve or siphon hose attachment. Ensure disposal complies with local drainage rules.
Thoughtfully crafted to deliver a product that’s built to perform and made to last.
Quick delivery from our UK & EU warehouses on all orders with 30 day return policy.
We’re here for you 7 days a week, ready to help by phone or email.
All payments are processed safely and securely with 0% Finance Options Available.