Vaillant uniSTOR single coil hot water cylinder

uniSTOR is a fast-reheating single coil hot water cylinder available from 150 to 500 litres. It suits villas, apartments and small businesses that want stored hot water alongside a combi or a floor-standing boiler.

Capacity: 150–500 L

A single coil is the most economical choice where there is only one heat source; coil outputs of 27.4 kW and 33.7 kW are available. The enamel-coated interior protects the metal in contact with the water and keeps the stored water hygienic.

What matters as much as volume is whether the heat source can actually feed the coil. During the survey we size the cylinder against the boiler output so you do not pay for a tank that is too large.

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Technical data

Figures come from the manufacturer’s official product page and technical documents; they can vary by model and output.

Vaillant uniSTOR – technical data table
Property	Detail
Capacity	150–500 L
Storage volume	150–500 L
Coil output	27.4 / 33.7 kW
Type	Single coil
Interior lining	Enamel-coated interior
Dimensions (H × Ø)	300 L: 1,804 × 755 mm · 400 L: 1,502 × 900 mm · 500 L: 1,802 × 900 mm
Energy class	An energy label is not required for this product group.

Source: Vaillant official product page, product information sheet (ErP) and installation/maintenance manuals. Values with a stated measuring condition apply under the test conditions of that standard.

What Devka Doğalgaz does for this product

We do not just sell the appliance; our own team handles every step from selection to the annual service.

Choosing the right output

We size the appliance to your floor area, household size and hot water demand during a free survey.
Sale and installation

We invoice the appliance as an authorised dealer and carry out the pipework and flue to standard.
Commissioning

We do the first start-up, register the warranty and show you how to use the appliance on site.
Authorised service

We remind you when the annual service is due and give priority appointments across Antalya.

Vaillant uniSTOR RW cylinder for heat pumps
- 200–500 L
A hot water cylinder with a large surface coil designed specifically for heat pump systems. It produces enough hot water even from a heat pump running at low temperatures. It offers high corrosion protection and a B energy class.
Vaillant auroSTOR twin coil cylinder
- 300–500 L
A cylinder with two separate coils: one connects to the boiler, the other to solar collectors. On sunny days the hot water comes entirely from the sun, which lowers fuel use. Magnesium anode protection and thick insulation give a long service life.
Vaillant allSTOR multi-function buffer tank
- 500–2,000 L
A buffer tank that combines different heat sources - combi boiler, floor-standing boiler, heat pump and solar - in a single vessel. Volumes run from 500 to 2,000 litres, and cascading allows storage of up to six tonnes. Suitable for apartment blocks and commercial buildings.