Head to head
Ariston Velis Evo 80 vs Joule Cyclone Air 150L Direct
The Ariston Velis Evo 80 is a electric storage water heater, 80 litres. The Joule Cyclone Air 150L Direct is a direct unvented hot water cylinder, 150 litres.
Last reviewed 13 September 2026
Specifications side by side
| Ariston Velis Evo 80 | Joule Cyclone Air 150L Direct | |
|---|---|---|
| Capacity | 80 litres | 150 litres |
| Heat-up time | shower ready in 50 minutes | 57 minutes (full tank, 6kW immersion) |
| Power | 1.5kW dual heating element (max 1.5kW draw at any time) | - |
| Depth | 270 mm (slim twin-tank design) | - |
| Energy rating | B | - |
| Installation | requires the supplied unvented kit | - |
| Dimensions | - | 1196 x 540 x 540 mm (H x W x D) |
| Immersion heater | - | 6kW (2 x 3kW) |
| Warranty | - | 1 year manufacturer's warranty |
Sources: Ariston Velis Evo 80, Joule Cyclone Air 150L Direct. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Velis Evo 80 if...
An 80 litre slimline electric storage water heater at only 270mm deep, suited to a flat, annexe or holiday let with no boiler-fed hot water. Its twin-tank design is quoted as giving more usable hot water than a standard single-tank heater of the same size.
Full Velis Evo 80 specifications →Buy or hire the Cyclone Air 150L Direct if...
A 150 litre direct unvented cylinder from Joule's Cyclone range, heated by twin immersion elements rather than a boiler or heat pump coil. It suits a property with electric-only heating or a holiday let, reheating a full tank in around 57 minutes.
Full Cyclone Air 150L Direct specifications →Common questions
What is the difference between the Ariston Velis Evo 80 and the Joule Cyclone Air 150L Direct?
The Ariston Velis Evo 80 is a electric storage water heater, 80 litres; the Joule Cyclone Air 150L Direct is a direct unvented hot water cylinder, 150 litres.
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