Vaillant allSTOR multi-function buffer tank

allSTOR is a multi-function buffer tank that brings different heat sources together in a single vessel. It suits apartment, hotel and commercial projects building central hot water and a heating buffer.

Capacity: 500–2,000 L
Energy class: B

Because a combi, a floor-standing boiler, a heat pump and solar can all feed the same tank, the system can be set up to use whichever source is cheapest at the time. Volumes run from 500 to 2,000 litres and cascading takes storage up to six tonnes.

A buffer tank stops the compressor of a heat pump from starting and stopping constantly, which extends the life of the appliance. On jobs of this size we plan the tank position, the lifting route and the plant room door width during the survey.

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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 allSTOR – technical data table
Property	Detail
Capacity	500–2,000 L
Storage volume	500–2,000 L
Dimensions (H × Ø)	1,700 × 930 mm (500 L)
Type	Buffer / accumulation tank
Energy class	B

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.

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