Foam-wall hot tubs compared
Foam-wall tubs swap the air wall for solid foam panels under a PVC skin. The makers claim up to 60 % lower heat loss, and most of them have the heater built into the wall, so there is no pump box on the patio. They cost more than an inflatable but less than a frame tub.

1
£700
Lay-Z-Spa · Foam-wall · 7 people
Lay-Z-Spa Toronto
The roomier foam-wall Lay-Z-Spa.
Score 7.5 / 10

2
£725
Lay-Z-Spa · Foam-wall · 6 people
Lay-Z-Spa Carrara
A foam-wall tub for not much more than a good inflatable.
Score 7.1 / 10

3
£1,000
Lay-Z-Spa · Foam-wall · 6 people
Lay-Z-Spa Stockholm
A square foam-wall tub with a premium price.
Score 7.0 / 10

4
£1,010
Wave · Foam-wall · 4 people
Wave Tahoe 4
A thick foam-wall tub that Wave says costs about £2 a day to keep hot.
Score 6.0 / 10

5
£1,210
Wave · Foam-wall · 6 people
Wave Garda 6
Square foam-wall Wave for six.
Score 6.0 / 10