# Circulation Regulator for Domestic Hot Water TECH ST-11 white

**URL:** https://aio.lv/en/product--tech-tsst11wh--11829335
**Data updated:** 2026-03-09 14:38 (EET)
**Category:** Control Systems
**Manufacturer:** TECH
**Manufacturer code:** TSST11WH
**EAN:** 5902479661704
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 257.99 €
**Prices and availability valid until:** 2026-07-08 23:59
**Price without VAT (21%):** 213.21 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--tech-tsst11wh--11829335

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.06.2026 | free |
| Pickup points | 02.07.2026 | 1.99 EUR |
| Courier delivery to door | 02.07.2026 | 4.99 EUR |

## Summary description

TECH ST-11 circulation regulator for domestic hot water (CWU) is a wall-mounted control device in white finish designed to manage and optimize hot water circulation loops. The unit provides manual adjustment of circulation parameters, supports integration with standard plumbing systems, and is intended for residential and light-commercial hot water installations to reduce wait time for hot water and energy loss.

## Long description

TECH ST-11 circulation regulator for domestic hot water (CWU) is a wall-mounted control unit finished in white, designed to manage and optimize hot water circulation loops in residential and light-commercial installations. The device enables manual adjustment of circulation parameters to reduce waiting time for hot water at taps and lower energy loss associated with prolonged pipe cooling. The compact enclosure is intended for mounting near boiler rooms, circulation pump locations, or distribution manifolds and integrates with standard domestic plumbing configurations.
Advantages
The regulator offers straightforward manual control of circulation dynamics, allowing homeowners and installers to fine-tune flow and timing without complex programming. Its wall-mounted design and neutral white finish facilitate discreet installation in utility rooms or corridors. By minimizing cold-water waste and shortening the time to deliver hot water, the unit contributes to more efficient hot water use and potential energy savings in everyday operation.
Suitable for
 Residential hot water circulation loops in single-family homes
 Small multi-family or light-commercial buildings with domestic hot water systems
 Retrofitting existing circulation systems to improve responsiveness
 Installations where a wall-mounted, manually adjustable regulator is preferred
Key specifications
 Mounting type: wall-mounted enclosure suitable for indoor utility spaces
 Finish: white casing designed for discrete visual integration
 Control type: manual adjustment of circulation parameters (flow/timing)
 Application: designed for domestic hot water circulation loops (CWU)
 Compatibility: intended to integrate with standard residential plumbing and circulation pumps
How to use
Install the TECH ST-11 on a stable wall surface near the circulation pump or hot water manifold, following local plumbing and electrical installation rules. Connect the unit to the circulation piping and any associated pump according to the system layout; ensure shut-off valves are closed and the system is depressurized before making connections. After installation, manually adjust the regulator settings to achieve the desired balance between delivery speed and pump operation time. Verify correct operation by testing hot water draw at remote taps and fine-tuning the control to reduce waiting time while avoiding excessive pump runtime.
Usage recommendations
For reliable operation, have the unit installed by a qualified plumber or heating technician who can verify compatibility with the existing circulation pump and controls. Periodically check connections and the regulator setting, especially after system maintenance, and insulate nearby piping to further reduce heat loss and improve overall efficiency.

## FAQ

### How much does the Circulation Regulator TECH ST-11 cost, and is it available for purchase?

The price is 257.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 29.06.2026 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 Circulation Regulator TECH ST-11 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 TECH 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 TECH 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/11829335/67230179_large.webp