# Heating kit Engo E25-BATB-4 + ETRV-M30 — wireless radiator thermostat and battery controller

**URL:** https://aio.lv/en/product--engo-e25-batbetrv-m30--12034440
**Data updated:** 2026-03-12 16:43 (EET)
**Category:** Home Automation
**Manufacturer:** Engo
**Manufacturer code:** E25-BATB+ETRV-M30
**EAN:** 5904087507252
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 104.49 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 86.36 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--engo-e25-batbetrv-m30--12034440

## 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

Engo heating kit comprising E25-BATB-4 and ETRV-M30 includes a battery controller (E25-BATB-4) and a radiator valve thermostat (ETRV-M30). The set provides temperature regulation for radiator-based heating systems via a dedicated thermostat valve and battery-powered controller. Suitable for zonal room control, schedule-based temperature management and retrofit installations.

## Long description

The Engo heating kit E25-BATB-4 + ETRV-M30 combines a battery-powered controller and a wireless radiator thermostat to provide zonal temperature control for radiator-based heating systems. The kit is designed for retrofit and new installations where a dedicated thermostat valve and a separate battery controller deliver room-level temperature regulation, schedule-based control and simple integration into existing piping and radiator hardware. It supports wireless communication between the valve head and the controller to regulate radiator flow according to setpoint temperatures.
Advantages
The kit provides independent room temperature control using a compact battery controller and a radiator-mounted thermostat head, enabling schedule-driven energy management without requiring mains power at the valve. Installation is suitable for retrofit projects because the radiator valve thermostat attaches to standard radiator valve bodies while the battery controller is installed where wiring is impractical. Wireless operation simplifies placement and reduces the need for disruptive pipework changes. The components are intended for clear separation of sensing and actuation functions, improving zoning flexibility and making it easier to maintain or replace individual parts.
Suitable for
Zonal room temperature control in apartments and houses
Retrofit of existing radiator heating systems
Schedule-based temperature management for occupied and unoccupied periods
Rooms where a battery-powered solution is preferred over wired valves
Key specifications
Includes a battery-powered controller and a wireless radiator valve thermostat
Battery operation for the controller to allow installation without mains wiring
Wireless communication between thermostat head and controller for setpoint control
Intended for radiator-based hydronic heating systems and standard valve bodies
Designed for zone-level temperature regulation and schedule control
How to use
Mount the radiator thermostat head on the radiator valve body following the valve adapter compatibility; place the battery controller where it can communicate reliably with the thermostat and where batteries can be accessed for replacement. Configure the desired temperature setpoints and schedules using the controller interface according to room usage patterns. Once paired, the controller transmits setpoint changes to the valve thermostat, which modulates radiator flow to achieve and maintain the selected room temperature.
Usage recommendations
For reliable operation, install the thermostat head on a radiator valve that is free of heavy deposits and ensure the controller is positioned to avoid radio obstructions. Use fresh batteries and follow the manufacturer’s guidance for replacing them. When retrofitting, verify valve adapter compatibility and, if necessary, consult a heating technician to confirm correct mounting and hydraulic balancing of the system.

## FAQ

### How much does the Engo heating kit E25-BATB-4 + ETRV-M30 cost, and is it available for purchase?

The price is 104.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 20 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 Engo heating kit E25-BATB-4 + ETRV-M30 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 Engo 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 Engo 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/12034440/67521852_large.webp