By Baltresto
Electric Chiller & Heater Box for Hot Tubs and Ice Baths, 5kW & 7kW
Electric Chiller & Heater Box for Hot Tubs and Ice Baths, 5kW & 7kW
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This energy-efficient dual-action system provides powerful heating for winter and refreshing cooling for hot summer days. Available in 5kW and 7kW capacities, it significantly cuts energy bills while maintaining the perfect hot tub temperature 365 days a year, with or without a wood-fired stove. A chiller enhances the benefits of cold-water therapy by promoting better blood circulation, helping reduce arterial hypertension, strengthening the immune system, accelerating muscle recovery and relaxation, and contributing to lower stress levels.
Dual Function Heating and Cooling
One compact unit gives you the best of both worlds. Switch between Heating, Cooling, and Auto modes to take your tub from a soothing 40°C soak down to a bracing 2°C cold plunge, all from a single digital control panel.
Powerful, Efficient Performance
With a rotary compressor and a titanium coil heat exchanger, both the 5kW and 7kW units deliver reliable, efficient temperature control even in larger tubs, helping maintain your ideal temperature year round while keeping running costs sensible.
Simple Digital Controls
An easy-to-use digital display lets you set your exact desired temperature, switch between Heating, Cooling, and Auto modes, and monitor performance at a glance.
Quiet, Compact and Durable Design
With sound pressure levels as low as under 50 dBA at 1m, these units run quietly alongside your hot tub or sauna setup. The IPX4-rated, weather-resistant housing is built for reliable outdoor use without taking up much space.
Year-Round Cold Therapy Benefits
The chiller function turns your hot tub into an effective cold-water therapy tool, promoting better blood circulation, helping reduce arterial hypertension, strengthening the immune system, and accelerating muscle recovery and relaxation, all contributing to lower stress levels.
Specifications
| Specification | 5kW | 7kW |
|---|---|---|
| Power supply | Single phase 220-240V ~ 50Hz | Single phase 220-240V ~ 50Hz |
| Maximum power | 1.80 kW | 2.55 kW |
| Maximum current | 9.00 A | 12.08 A |
| Operating ambient temperature | -10°C ~ 43°C | -10°C ~ 43°C |
| Heating temperature range | 10°C ~ 40°C | 10°C ~ 40°C |
| Cooling temperature range | 2°C ~ 30°C | 2°C ~ 30°C |
| Unit dimensions (L x W x H) | 520 x 490 x 390 mm | 620 x 490 x 420 mm |
| Weight | 38 kg | 47 kg |
| Sound pressure level at 1m | < 50 dBA | < 55 dBA |
| Sound pressure level at 10m | < 30 dBA | < 35 dBA |
| Hydraulic connections | PVC 32mm | PVC 32/38mm |
| Heat exchanger (air side / water side) | Hydrophilic aluminium and copper tube with inner groove / Titanium coil (9.52mm x 3.5m) | Hydrophilic aluminium and copper tube with inner groove / Titanium coil (9.52mm x 3.5m) |
| Water flow rate (integrated pump) | 2.15 m³/h | 3.00 m³/h |
| Compressor type | Rotary | Rotary |
| Refrigerant | R32 (0.38 kg) | R32 (0.52 kg) |
| Protection rating | IPX4 | IPX4 |
| Load loss | 25 kPa | 30 kPa |
| Control panel | Digital-display control panel | Digital-display control panel |
| Mode | Heating / Cooling / Auto | Heating / Cooling / Auto |
Why Choose Roman Oasis?
At Roman Oasis, we’re committed to bringing luxurious wellness experiences directly to your home. From rejuvenating saunas to invigorating ice baths, each product is carefully selected to enhance relaxation, recovery, and self-care. We prioritize quality, free shipping on all orders, and seamless customer support to ensure your satisfaction every step of the way. Transform your space into a sanctuary with Roman Oasis – where wellness meets elegance.
Let customers speak for us
From our first enquiry to its first use we have had no problems, easy to order, customer service is fantastic, delivery was quick and efficient. We have hesitated for a long time as only have a very small garden but so glad we went for it. Would highly recommend to anyone thinking about one. Ours is the oval woodfired 2 person hot tub, with 1 light and standard bubbles which is just perfect. Insulated lid keeps hot tub warm and just needs a quick wee fire to top up the heat. Wooden steps finish off the look. Put our parasol over the hot tub and sat out in the rain tonight!!! So happy with our purchase, thanks to all at Roman Oasis.
From the enquiry stage, the staff provided helpful information via WhatsApp. Although there was a slight delay in production, they kept us updated throughout the process. Delivery was initially unsuccessful due to a courier issue, but the company was accommodating and worked with us to arrange a smooth delivery. There were also some minor defects on arrival, and while these shouldn't have been present, the company responded appropriately and took steps to rectify them.
The Ella Cube Sauna itself is very good and performs as expected. Reaches temps of 70-90 in less than 15 minutes and reaches 100+.
Overall, while there were a few issues along the way that affected the experience, the company was responsive and willing to resolve problems when they arose.
A special thanks to Louis for his help throughout the process and for assisting in getting the issues resolved.
Firstly I have to say how great Louis from Roman Oasis was throughout the whole experience with his knowledge and communication. The Sauna is absolutely amazing and we couldn't be happier with the whole experience.
Thanks again Roman Oasis
Roman Oasis were so helpful. Louis was on hand to help with any questions, delivery instruction and after service. I could not fault their customer service.
The sauna itself is absolutely stunning. We have very high standard and it certainly lives up to those.
Instruction manual was helpful and easy to understand
What a fabulous experience.
Helpful staff, easy to order, kit arrived safely, easy to assemble.
I’ve used this every day and it’s quick to heat up, very comfortable for one person.
I love it couldn’t recommend it more highly.
I received my Baltresto wood fired hot tub well within the time stated and was kept up date with progress throughout the build process. I ordered the flat pack self build tub as access to my garden is limited. The tub and heater were delivered right to my drive way and everything was packed and protected extremely professionally. It was easy remove the stainless steel hex screws from the pallet and protection and move the components parts to my garden. The tub was pretty easy straightforward to assemble with very clear instructions, the last piece was a bit tricky but went in with a little help holding the slats in that need to be moved out to get a really tight fit. The heater and chimney fitted easily and heated the tub up nicely after about 1.5 hours. Well recommended.
I purchased the Baltresto hot tub a few weeks ago. I had to go for the kit form of hot tub, as I have limited space to get anything into my garden. It arrived on time and packed really well. Assembly was very straight forward and easy. I opened for a few extras which took a little thinking about, but we're also straight forward to fit. As expected there were leaks when filling it up for the first time, but once the wood was wet and had expanded, the leaks all closed up. The wood fire heating system was quicker than I expected it to be and works exceptionally well - can't wait for the winter now). I have had plenty on nice times in it in the last few weeks , enjoying the late summer evenings and the crystal clear nights with a glass of wine. Exceptionally pleased with the idea and the outcome, I am sure it's going to be a lot of fun.
first off can I just say the customer service was amazing kept up to date with messages to let me know how everything was going up until the shipping date. packaged and wrapped amazingly. Easy to place with 2 people by hand once unwrapped, takes a little to get the fire attached but easy enough. excellently made and looks the business. very comfy to sit in and the fact its a woodburner makes it all the better. Can't say enough about Roman Oasis and their product absolutely brillaint.
The perfect alternative to other hot tubs! We purchased the Oslo after researching more cost effective options online. It’s great! Gets toasty hot without too much waiting, great bubbles and LED lights. We use it so often and are such a fan. Service from Roman Oasis was amazing and such quick delivery!
Broken part was delivered within days
As I'm getting older, I decided to invest more in my health. After seeing podcasts on cold plunge benefits and from personal research, I had to get the real thing. Addicted. I have had the chillax tub for just over 3 weeks now, and if I don't get in first thing in the morning ,my day feels slugish... Additionally, the team at Roman Oasis made the delivery and setup as simple as possible with great help from Louis over the phone. Couldn't recommend them more, Thanks!
