# Temperature Return Limiter Herz RTB Mini 19201-00 for heating systems

**URL:** https://aio.lv/en/product--herz-19201-00--11700025
**Data updated:** 2026-03-08 08:46 (EET)
**Category:** Other goods
**Manufacturer:** Herz
**Manufacturer code:** 19201-00
**EAN:** 9004174915208
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 29.49 €
**Prices and availability valid until:** 2026-08-13 23:59
**Price without VAT (21%):** 24.37 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--herz-19201-00--11700025

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.07.2026 | free |
| Pickup points | 04.08.2026 | 1.89 EUR |
| Courier delivery to door | 04.08.2026 | 4.99 EUR |

## Summary description

Herz RTB Mini (19201-00) is a compact return temperature limiter designed for hydronic heating systems. It controls and limits the temperature of the return flow to protect boilers and ensure efficient heat distribution. Suitable for installation on return pipes, it helps prevent thermal shock, reduces condensation and improves system longevity in residential and light commercial heating applications.

## Long description

Herz RTB Mini 19201-00 is a compact return temperature limiter designed for hydronic heating systems. It regulates and limits the temperature of the return flow to protect boilers and heat generators from low-temperature return water and to promote stable system operation. The device is suitable for installation on return pipes in residential and light commercial heating circuits where preventing condensation, thermal shock and corrosion is required to extend component service life and maintain efficient heat distribution.
Advantages
The unit provides reliable mechanical control of return temperature without the need for electrical power or external control signals, making it simple to fit and operate. Its compact form factor allows installation in confined spaces on standard return pipelines, and the presettable temperature setpoint helps maintain consistent boiler protection. By limiting low-temperature returns, the device reduces the risk of condensation and thermal stress in heat emitters and boiler heat exchangers, contributing to longer equipment life and improved system efficiency.
Suitable for
Domestic central heating return lines
Small commercial heating circuits
Boiler protection against low-temperature return water
Hydronic systems where condensation prevention is required
Key specifications
Type: mechanical return temperature limiter for hydronic heating
Mounting location: installation on return pipework
Operation: temperature-actuated valve limiting minimum return temperature
Compatibility: suitable for standard residential and light commercial heating systems
Construction: compact body designed for tight installation spaces
How to use
Install the Herz RTB Mini on the heating system return pipe according to the system design and local regulations, ensuring correct orientation of flow. Set the required minimum return temperature following the manufacturer's installation instructions and system requirements. Commission the system and check that the limiter opens and closes at the intended temperatures, ensuring the boiler and heat emitter temperatures remain within the specified operational range. Regularly inspect the unit during routine heating system maintenance to verify correct operation and absence of leaks.
Usage recommendations
Fit the limiter as close as practical to the boiler return connection to maximise protection against low-temperature return water. Use with compatible piping materials and ensure all connections are tightened and sealed according to installation standards. Periodic visual checks during service intervals are recommended to detect wear or leakage early.

## FAQ

### How much does the Herz RTB Mini temperature return limiter 19201-00 cost, and is it available for purchase?

The price is 29.49 € (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 30.07.2026 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. All transactions are 100% secure and encrypted.

### 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 Herz 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 Herz 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/11700025/67083196_large.webp