# Internet weather-compensated controller Vaillant 1 heating circuit with wireless room thermostat

**URL:** https://aio.lv/en/product--vaillant-638000012037--11683337
**Data updated:** 2026-02-16 07:11 (EET)
**Category:** Control Systems
**Manufacturer:** Vaillant
**Manufacturer code:** 638000012037
**EAN:** 5907667516910
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 317.99 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 262.80 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--vaillant-638000012037--11683337

## 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 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Internet weather-compensated controller by Vaillant for a single heating circuit, supplied with a wireless (radio) room thermostat. Designed to adjust boiler operation according to outdoor conditions and indoor setpoint, it enables remote access and scheduling via internet. Suitable for domestic heating systems with one circuit, it improves comfort and can reduce fuel use by optimizing supply temperature.

## Long description

Internet weather-compensated controller Vaillant 1 heating circuit with wireless room thermostat is a control unit designed to regulate boiler supply temperature for a single heating circuit by taking into account outdoor conditions and the indoor setpoint. Supplied with a wireless room thermostat, the device supports remote access and scheduling via an internet connection, enabling adjustment of heating behavior from a smartphone or web interface. The controller is suitable for domestic heating systems with one circuit and aims to improve thermal comfort while optimizing fuel consumption by adapting the heating curve and boiler operation to changing weather and user requirements.
Advantages
The controller combines weather compensation logic with wireless room temperature feedback to maintain stable indoor temperatures while reducing unnecessary boiler cycling. Internet connectivity allows remote monitoring and schedule changes, and the single-circuit design simplifies installation in one-zone systems. The supplied wireless thermostat provides convenient local control without additional wiring, and the system’s adaptive control algorithms help maintain energy-efficient supply temperatures.
Suitable for
Detached houses, apartments or small residential buildings with one heating circuit
Systems where outdoor temperature-dependent supply temperature control is required
Installations where wireless room thermostat installation is preferred to avoid extra cabling
Users who require remote access and scheduling of heating via internet or mobile app
Key specifications
Control type: weather-compensated boiler supply temperature control for one heating circuit
Room thermostat: wireless radio room thermostat included
Connectivity: internet-enabled for remote access and scheduling via app/web interface
Compatibility: intended for domestic heating systems with a single heating circuit
Functions: adjustable heating curve, setpoint control, time schedules, remote monitoring
How to use
Install the controller according to the boiler manufacturer’s installation guidelines and connect the wireless room thermostat following the supplied pairing instructions. Configure the outdoor sensor input if provided or enable internet-based weather data so the controller can calculate the appropriate supply temperature using the heating curve. Set the desired indoor temperature setpoints and weekly schedules through the thermostat interface or the online/mobile application. Verify correct operation by observing supply temperature adjustments relative to outdoor temperature changes and by confirming responsiveness to remote adjustments.
Usage recommendations
For best results, position the wireless room thermostat away from direct sunlight, drafts and heat sources to ensure accurate room temperature measurement. Calibrate the heating curve during the first heating season if necessary, and use the scheduling and setback features to reduce energy use when full comfort is not required. Ensure stable internet connection and firmware updates for reliable remote access and optimal performance.

## FAQ

### How much does the Vaillant internet weather controller for 1 heating circuit cost, and is it available for purchase?

The price is 317.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 internet weather controller for 1 heating circuit 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/11683337/67020903_large.webp