The E-TOP WT-11 is a next-generation wireless programmable smart heating thermostat for boiler systems, sporting a refreshed modern upright casing and a highly intuitive user interface. This premium wireless thermostat provide convenience to control heating system remotely for room temperature, creating an exceptional balance between premium aesthetics and high-performance trade reliability for regional plumbing merchants and commercial installers.
Engineered specifically to meet the evolving aesthetic and technical demands of the European HVAC network, the WT-11 incorporates build-in sensors in your room wireless thermostat that detect when the temperature falls to a chosen level and then feedback to the heating system to turn on.

Managing a wholesale trade counter or an engineering supply company requires hardware that stands out. The WT-11 offers distinct commercial and technical advantages to protect your business growth:
Sleek Upright Aesthetic Upgrade: The modern layout and clear, high-contrast display give merchants a fresh look to offer contractors who want an alternative to traditional, blocky retail thermostats.
Protected Wholesale Counter Margins: As a dedicated B2B trade-only heating solution, the WT-11 helps independent distributors bypass the fierce, hyper-transparent price wars common on online consumer platforms.
True Universal Boiler Integration: Equipped with a standard 3A potential-free volt-free relay, the receiver pairs seamlessly with condensing, gas, oil, and combi-boilers from all major European manufacturing brands (such as Vaillant, Bosch, and Worcester).
Comprehensive Material Compliance: Fully certified by TUV Rheinland covering CE, RED, and UKCA guidelines, guaranteeing a smooth, risk-free importation and commercial bidding pipeline across the EU and UK markets.

The receiver provide voltage-free output for heating sources control.

ISO Certified Production: Every WT-11 unit is manufactured in an ISO 9001:2015 and ISO 14001:2015 certified facility.
Compliance Standards: Fully certified with CE (RED/EMC/LVD), RoHS, and FCC marks for global market access.
OEM Experience: Backed by E-TOP Controls, a professional manufacturer with over 20 years of experience (since 2003) in ODM/OEM services.
| Display | LCD Display |
| Power Supply | 2xAAA Battery |
| Receiver Max. Load | 10A (Resistive), 3A (Inductive) - Ideal for most gas boilers |
| RF Frequency | 868 MHz (Stable for EU), 433 MHz (Optional) |
| Ambient Temp. | 0~50 ℃ |
| Operating Room Temp | 5-35 ℃ |
| Accurancy | ±0.5 ℃ |
| Programmability | 7 Days Programmable |
| Sensor | NTC10K |
| Protection Class | IP20 |
| Material | Fire-retardant ABS+PC (RoHS certified) |
| Product Certificate | TUV Rheinland CE (RED, EMC, LVD), UKCA, RoHS, REACH |
| Factory Quality System | ISO 9001:2015, ISO 14001:2015 Certified |
| OEM & ODM | 1. Customized logo and package |
| 2. Customzied software ( change to customer’s user interface and control logic) | |
| 3. Customized hardware ( change the PCB and schematic based on the request) |

A: The WT-11 : Wireless Programmable Smart Heating Thermostat For Boiler solves the biggest problem for European HVAC wholesalers: online price wars. Unlike legacy retail brands that suffer from hyper-transparent online pricing, the WT-11 is a trade-protected B2B product. It allows regional plumbing merchants to secure high commercial margins while offering installers a premium modern upright casing and a refreshed high-contrast white user interface that looks significantly more modern on counter displays.
A: The WT-11 operates on an ultra-stable, sub-GHz 868MHz wireless frequency band. The wireless transmitter and receiver communicate completely offline, meaning the local heating schedules stay 100% active even if the property's Wi-Fi drops out. Furthermore, the device is equipped with an internal non-volatile EEPROM memory chip. All custom 7-day programmable schedules, installer calibrations, and frost protection thresholds survive building power outages or seasonal battery replacements without requiring a manual system reset.
A: Yes, the technical interoperability of the WT-11 is designed to minimize your warehouse SKU counts. The receiver features a heavy-duty 3A potential-free volt-free dry contact relay. This interface is identical to the standard connection methods used by over 95% of European gas, condensing, oil, and combi-boilers (including premier brands like Vaillant, Bosch, Baxi, and Worcester), allowing contractors to swap legacy units seamlessly without running new wires.
A: Yes. While our standard stock layout relies on the universal 3A dry contact relay for broad market compatibility, the WT-11 system architecture is fully adaptive. For bulk B2B commercial tenders, new housing developments, or OEM merchant orders, the OpenTherm protocol firmware can be integrated into the hardware to deliver precise, modulating heating controls.
A: Supporting regional HVAC distributors and OEM brands is our core business infrastructure. We provide full-scale private label customization starting at flexible B2B order volumes. This includes custom logo printing on the front panel of the thermostat casing, tailored multi-language user manual translation, and bespoke neutral white box wholesale packaging to help build your own localized brand equity.
A: Absolute regulatory peace of mind is guaranteed for all international bidding processes. The WT-11 wireless thermostat range has passed rigorous laboratory validation by TUV Rheinland, achieving full certification covering CE, RED (Radio Equipment Directive), ROHS, REACH, and UKCA compliance. This ensures hassle-free customs clearance and full eligibility for official social housing and energy-saving project bidding across Europe.