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header-product Expansion vessel (wall-mounted) FERRO K5UNI35W 35 L
130.99 €

Expansion vessel (wall-mounted) FERRO K5UNI35W 35 L

Expansion vessel FERRO K5UNI35W 35 L Photo 1
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Expansion vessel (wall-mounted) FERRO K5UNI35W 35 L

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Expansion vessel (wall-mounted) FERRO K5UNI35W 35 L

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Short description

FERRO K5UNI35W is a 35-liter wall-mounted expansion vessel designed for closed heating and hot-water systems. It compensates for pressure changes caused by thermal expansion, helps maintain system stability and protects components from overpressure. Suitable for residential and light-commercial installations where a compact, wall-mounted expansion tank is required.
Available for order: 3 pcs.
Warranty: 2 Years
SKU: 11888103
Manufacturer: FERRO
free shipment

Cheapest delivery:

Venipak Locker LV

Pick-up points

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
15.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
20.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 €
Parcel couriers
Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Venipak Pickup LV / Latvijas Pasts nodaļa
20.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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3 mth. х 43.66 €

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All payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment
36 months installment: from 3.64 euros per month
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Product information

Description

FERRO K5UNI35W 35 L is a wall-mounted expansion vessel designed for closed heating and hot-water systems. The 35-liter capacity accommodates thermal expansion in domestic and light-commercial installations, reducing pressure fluctuations and helping to protect boilers, pumps and pipework from overpressure. Its compact format and wall-mounted design enable installation in boiler rooms, utility cupboards or other confined spaces where a small footprint is required.

Advantages

This FERRO expansion vessel provides reliable pressure compensation thanks to a pre-charged gas chamber separated from the hydraulic circuit by a durable diaphragm. The wall-mounted layout minimises floor space usage and simplifies integration with existing systems. Made for closed systems, the vessel helps extend the service life of heating components by limiting peak pressures and reducing the risk of system cycling caused by volume changes.

Suitable for

  • Closed central heating systems in single-family homes
  • Domestic hot-water systems with space constraints
  • Light-commercial installations such as small offices or retail spaces
  • Retrofit projects where wall-mounted vessels are preferred

Key specifications

  • Nominal volume: 35 litres
  • Mounting: wall-mounted design
  • Application: closed heating and hot-water systems
  • Internal separation: diaphragm-type bladder separating gas and fluid
  • Function: absorbs thermal expansion and compensates pressure changes
  • Material: corrosion-resistant steel shell with protective coating
  • Connection: standard threaded hydraulic connection suitable for typical heating installations

How to use

Install the expansion vessel on a suitably rated wall bracket at a location close to the boiler or primary circulation loop, ensuring the hydraulic connection is accessible for commissioning and maintenance. Before connection, check the pre-charge pressure of the gas chamber and adjust it to match the static system pressure according to the heating system specification. After installation, fill and vent the system, then verify the vessel and system pressures under cold and operating conditions to confirm correct operation.

Usage recommendations

Periodically inspect the vessel for visible damage and verify the gas pre-charge at service intervals. Ensure system pressure settings and safety devices are set per installation guidelines. For replacement or adjustments, follow the heating system manufacturer instructions or consult a qualified heating engineer.

Description

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Customer reviews

Customer questions

FAQ

How much does the Expansion vessel FERRO K5UNI35W 35 L cost, and is it available for purchase?

The price is 130.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 15.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

Can Expansion vessel FERRO K5UNI35W 35 L be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the Expansion vessel FERRO K5UNI35W 35 L online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All FERRO products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized FERRO service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.