# Room thermostat Vaillant calorMATIC 350 (model 0020124476) — wired temperature controller for heating systems

**URL:** https://aio.lv/en/product--vaillant-0020124476--11867916
**Data updated:** 2026-03-09 17:44 (EET)
**Category:** Control Systems
**Manufacturer:** Vaillant
**Manufacturer code:** 0020124476
**EAN:** 4024074602430
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 312.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 258.67 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--vaillant-0020124476--11867916

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.99 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Vaillant calorMATIC 350 (0020124476) is a wired room thermostat designed to control central heating systems. It provides setpoint temperature control, room temperature sensing and schedule-capable regulation for boilers and heat generators. Suitable for domestic and small commercial installations to maintain comfortable indoor temperature and improve heating efficiency.

## Long description

Vaillant calorMATIC 350 is a wired room thermostat intended for controlling central heating systems in residential and small commercial installations. The device provides accurate room temperature sensing, manual setpoint adjustment and schedule-capable regulation to coordinate with compatible boilers and heat generators. Its design focuses on maintaining chosen comfort temperatures while enabling energy-efficient operation through timed control and direct feedback from the living space.
Advantages
The calorMATIC 350 offers stable temperature control using a dedicated room sensor and wired connection to the heating system. It supports time-programmed operation to automate daily and weekly temperature schedules, reducing the need for manual adjustments. The unit is compatible with Vaillant systems and other heating appliances that accept standard wired room thermostat inputs, enabling straightforward integration in existing installations. Simple control logic and clear settings help ensure predictable behavior and reliable operation.
Suitable for
 Single- and multi-room domestic central heating systems
 Small commercial premises where wired thermostat control is required
 Boiler or heat generator installations that accept a room thermostat input
 Applications requiring weekly or daily temperature scheduling
Key specifications
 Room temperature sensing with wired connection
 Manual setpoint adjustment and schedule-capable regulation
 Compatibility with central heating boilers and heat generators supporting wired room thermostats
 Designed for wall mounting in indoor environments
 Controls heating via switching output to the connected heating system
How to use
Mount the thermostat on an interior wall away from direct sunlight, drafts, doors and heat sources to ensure accurate room temperature measurement. Connect the wired terminals to the heating system in accordance with the system’s wiring diagram and installation instructions supplied by the boiler or heat generator manufacturer. Set the desired temperature using the thermostat’s control interface and program daily or weekly schedules as required to match occupancy patterns. After initial setup, verify correct operation by observing that the heating responds to setpoint changes and programmed time periods.
Usage recommendations
For reliable performance, place the thermostat at typical living height in the primary occupied zone and avoid locations near radiators, kitchens or electronic equipment. When integrating with older or third-party boilers, review the boiler documentation for recommended thermostat wiring and control mode. Regularly check programmed schedules and adjust setpoints seasonally to maintain efficient heating behavior.

## FAQ

### How much does the Vaillant calorMATIC 350 room thermostat cost, and is it available for purchase?

The price is 312.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 14.07.2026 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 Vaillant calorMATIC 350 room thermostat be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 Vaillant 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 Vaillant 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. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11867916/67274332_large.webp