Your data. Your choice.

If you select «Essential cookies only», we’ll use cookies and similar technologies to collect information about your device and how you use our website. We need this information to allow you to log in securely and use basic functions such as the shopping cart.

By accepting all cookies, you’re allowing us to use this data to show you personalised offers, improve our website, and display targeted adverts on our website and on other websites or apps. Some data may also be shared with third parties and advertising partners as part of this process.

Legal noticePrivacy notice

Vaillant Solar system Solar expansion vessel 25 L

Price in EUR including VAT
Ratings
BrandMore from Vaillant
Delivered between Wed, 3/6 and Thu, 18/6
free shipping

Product details

The Vaillant solar expansion vessel with a volume of 25 liters is an essential component for solar thermal systems. It accommodates the expansion of water caused by temperature changes in the solar systems, ensuring stable and safe operation. This model is designed for use in systems with a maximum pressure of 10 Bar and provides a reliable solution for the storage and balancing of hot water. The expansion vessel is resistant to antifreeze and does not require an external power source, making it a practical choice for various installations. Manufactured in Germany, it combines quality and functionality and is an indispensable element for efficient solar systems.

  • Antifreeze resistant for reliable operation in cold environments
  • Suitable for systems with a maximum pressure of 10 Bar
  • Energy supply without an external power source
  • Made in Germany for high quality standards.

Key specifications

Boiler type
Hot water tank
Volume
25 l

General information

Item number
33883463
Manufacturer
Vaillant
Category
Boilers
Manufacturer no.
302098
Release date
17/5/2023

Boiler properties

Boiler type
Hot water tank
Max. pressure
10 bar
Model name
302098

Power supply

Power supply
Without external power source

Origin

Country of origin
Germany

Voluntary climate contribution

CO₂ emissions
34,11 kg
Climate contribution
EUR 0,87

Scope of delivery

Scope of delivery
1 x 25 litre solar expansion vessel.

Product dimensions

Volume
25 l

Legal Notice

Product Safety

Package dimensions

Length
43 cm
Width
31.50 cm
Height
32 cm
Weight
4.95 kg

14-day cancellation right
30-day right of return
24 Months statutory warranty
Legal concerns

Compare products

Goes with

Reviews & Ratings

Statutory warranty score

How often does a product of this brand in the «Boilers» category have a defect within the first 24 months?

Source: Galaxus
  • Vaillant
    Not enough data
  • 1.Stiebel Eltron
    1,2 %
  • 2.Tesy
    1,7 %
  • 3.Ariston
    2,2 %
  • 4.Sygonix
    2,4 %

Statutory warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Galaxus
  • Vaillant
    Not enough data
  • 1.Tesy
    0 days
  • 2.Stiebel Eltron
    3 days
  • 3.Ariston
    5 days
  • Bosch Home Comfort
    Not enough data

Return rate

How often is a product of this brand in the «Boilers» category returned?

Source: Galaxus
  • Vaillant
    Not enough data
  • 1.Ariston
    3,1 %
  • 2.Tesy
    3,2 %
  • 3.Stiebel Eltron
    6 %
  • 4.Sygonix
    7 %
Source: Galaxus