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header-product Vertical water heater LEMET MAXI 300L with 1 DHW coil (3.2 m²)

Vertical water heater LEMET MAXI 300L with 1 DHW coil (3.2 m²)

LEMET MAXI vertical water heater 300L 1 DHW coil Photo 1
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Short description

LEMET MAXI vertical water heater, 300‑litre capacity with a single domestic hot water (DHW) coil of 3.2 m². Designed for central heating systems to store and heat large volumes of water, it provides domestic hot water and supports space heating circuits. Suitable for residential or small commercial installations where high hot‑water demand and buffer storage are required.
Warranty: 2 Years
SKU: 5515581
Manufacturer: LEMET
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Product information

Description

The LEMET MAXI 300L vertical water heater is a high-capacity storage solution engineered for efficient domestic hot water production and central heating support. Featuring a robust 300-litre tank and a large 3.2 m² domestic hot water (DHW) coil, this unit is designed to handle significant thermal loads while maintaining consistent water temperatures. Its vertical orientation ensures a compact footprint, making it an ideal choice for boiler rooms where space optimization is essential.

Advantages

This water heater stands out due to its high-performance heat exchange surface, which allows for rapid heating of the stored water volume. The integration of a large-area coil ensures that the system can effectively utilize heat from various central heating sources, including boilers. The durable construction and high-quality insulation minimize heat loss, contributing to overall system efficiency and reduced energy consumption during standby periods.

Suitable for

  • Residential homes with high hot water demand
  • Small commercial properties requiring consistent hot water supply
  • Central heating systems integrated with boilers
  • Buffer storage applications for domestic hot water

When it may not be suitable

This unit is not designed for direct connection to solar thermal systems without additional modifications or secondary heat exchangers. It is also not suitable for locations where the floor space or ceiling height cannot accommodate a 300-litre vertical tank.

Key specifications

  • Capacity: 300 litres
  • Coil surface area: 3.2 m²
  • Installation type: Vertical
  • Application: Domestic hot water and central heating support

How to use

The water heater should be installed by a qualified professional in accordance with local plumbing and heating regulations. The unit is connected to the central heating circuit via the integrated coil, which transfers heat to the domestic water stored within the tank. Once installed, the temperature is regulated through the heating system controls to ensure the desired output for domestic use.

What to consider before purchase

  • Ensure the installation area has sufficient height and floor space
  • Verify that your heating system capacity matches the coil surface area
  • Check local water pressure requirements for optimal performance
  • Confirm the availability of necessary plumbing connections

Usage recommendations

Regular maintenance, including the inspection of the anode and cleaning of the tank, is recommended to prolong the service life of the heater and maintain optimal thermal efficiency.

Description

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Customer reviews

Customer questions

FAQ

How much does the LEMET MAXI vertical water heater 300L 1 DHW coil cost, and is it available for purchase?

The price is 1,587.49 € (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 10.07.2026 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, Leasing for legal entities. All transactions are 100% secure and encrypted.

Can LEMET MAXI vertical water heater 300L 1 DHW coil 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 LEMET MAXI vertical water heater 300L 1 DHW coil 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 LEMET 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 LEMET 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.
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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.