Cold plunge · score 7.5 out of 10
Lumi Therapy PRO Chiller (1 HP)
£1,999 from Lumi Therapy. A chiller to add to a tub.
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Photo: Lumi Therapy
£1,999 at Lumi Therapy
Not sold by our partner retailers, so we don't link to it. Similar products that are: see below.
- Chiller unit
- Lowest2°C
- Litres—
- Running a year£187
- Total over 5 years£2,936
The short answer
Ranked 10 of 31 cold plunges on our score.
Good for: Adding a to a tub you already have.
Watch out for: The chiller adds about £187 a year of electricity.
- ChillerChiller unit
- Lowest temperature2°C
- LitresNot published
- TypeChiller only
- PowerNot published
- WarrantyNot published
Similar, in stock from our partners
Highest scores of the same type and size you can buy now. Score order only.
Questions people ask before buying this one
How cold does it get?
Down to 2°C with the , and you choose the temperature.
Do I need to buy ice?
No. The keeps the water cold.
What will it cost to run?
About £187 a year at our assumption of 3 hours a day. The calculator below lets you change it.
How do I keep the water clean?
The seller doesn't say what filtration it has. Keep the lid on and shower first. Water care.
Is it safe?
If you have a heart or blood-pressure condition, or are pregnant, ask your GP before cold plunging. Never plunge alone, and keep the lid on around children.
What it costs to run
| Price | £1,999 |
|---|---|
| Running, a year | £187 |
| Total over 5 years | £2,936 |
The 's power is not published, so we assume 650 W. We assume the chiller runs 3 hours a day once the water is cold (our estimate).
Change the numbers
The detail
Specifications
From the seller's pages. "Not published" means we couldn't find it.
| Type | only |
|---|---|
| Chiller | Chiller unit: PRO Chiller, 1 HP |
| Lowest temperature | 2°C |
| Also heats to | — |
| Chiller power | not published |
| Capacity | not published |
| Size | not published |
| Filtration | not published |
| Insulation | not published |
| Outdoor use | not stated |
| Warranty | not published |
How it scores
| Gets cold without ice (30%) | 10.0 |
|---|---|
| Price (25%) | 7.3 |
| Easy to live with (13 A plug, filter, insulated) (20%) | 5.2 |
| Warranty (15%) | 5.8 |
| Build (rigid beats inflatable) (10%) | 8.2 |
| Score out of 10 | 7.5 |
How we score. Scored against products with the same set-up.


