ENTH-200
TCL KZd40-RS20WF-T3
- Capacity
- 204 L
- COP
- 3.30
- Annual electricity
- 1,233 kWh
- Height
- 1,802 mm
- Net weight
- 94 kg
ENTH-200 and ENTH-250
Hot water cylinders with a built-in heat pump. 204 or 250 litres.
Two sizes on the same 600 × 625 mm footprint. Both use natural R290 refrigerant, reach 70°C on the heat pump alone and connect to the TCL Home app. Made by TCL, supplied in Great Britain by enthalvia.
Made by
ENTH-250
TCL KZd40-RS25WF-T3
- Capacity
- 250 L
- COP
- 3.50
- Annual electricity
- 1,154 kWh
- Height
- 2,022 mm
- Net weight
- 106 kg
Unit heights shown to scale with each other. COP to EN 16147 at 7°C air, load profile XL. Annual electricity consumption at load profile XL.
- Integral heat pump water heater
- 204 L and 250 L
- COP 3.30 and 3.50, EN 16147, 7°C air, XL
- 70°C heat pump only, 75°C with element
- R290, 150 g, GWP 3
- WiFi, OTA, SG-Ready, Modbus
- 0.85 MPa
- Made by TCL
Up close
The unit, as TCL builds it.
Renders supplied by TCL, the manufacturer.
What you get
Specified plainly, with the test basis stated.
Tap any line for the detail behind it. We give the test basis we hold for each figure, and list the figures we do not hold yet.
70°CHot from the heat pump alone75°C with the back-up element.
The heat pump heats the tank to 70°C on its own. The 1,600 W element takes it to 75°C, and switches on automatically when the air is below −7°C, and the unit keeps heating in room air down to −25°C. A timed disinfection cycle heats the tank to 70°C.
Performance figuresR290A natural refrigerantGlobal warming potential of 3.
150 g of R290. It is a natural refrigerant, not an F-gas, and TCL state it has no negative impact on the ozone layer. Installers follow the manufacturer’s R290 guidance.
Installation notesWiFiRun it from your phoneThe TCL Home app and over-the-air updates.
Change settings and check how the unit is running from anywhere. Holiday mode and timed heating are built in, and software updates arrive over the air without a visit.
Controls and connectivitySG‑ReadyReady for energy systemsSG-Ready and Modbus interfaces.
SG-Ready lets a compatible energy controller tell the unit when to heat. Modbus provides a connection to suitable building controls. Both need compatible equipment and installer setup; a smart meter alone is not enough.
Questions and answers0.85 MPaEnamelled steel tankMagnesium anode as standard.
The tank is rated at 0.85 MPa. The standard TCL documents list a magnesium anode with an optional electronic anode. TCL has also discussed factory-fitted electronic anodes for future orders; confirm the configuration on your quotation. Water inlet, outlet and drain are all G 3/4".
Connections and sizes24 moCover includedWhole appliance, parts and labour.
24 months of cover from enthalvia with every unit, with no registration and no service condition. Extend it to three, five or six years with enthalvia Care.
enthalvia CareIn the app
Run it from your phone.
- Change settings and check how the unit is running, from anywhere.
- Timed heating, holiday mode and the timed disinfection cycle at 70°C.
- Software updates over the air, without a visit.
- TCL state that its AI function learns your household's hot water pattern and adjusts the working mode.
- The same app controls TCL air conditioning.
Functions described in TCL’s integral heat pump water heater leaflet.
Specification
Full technical specification.
Figures from TCL’s service manual V25.07.11.4 and product fiche, with operating features from the TCL leaflet. Tap a section to open it.
Capacity and performance9 lines
| Specification | ENTH-200 | ENTH-250 |
|---|---|---|
| Stated capacity | 204 L | 250 L |
| Coefficient of performance (COP)EN 16147, 7°C air, load profile XL | 3.30 | 3.50 |
| Water heating energy efficiencyLoad profile XL | 136% | 145% |
| Annual electricity consumptionLoad profile XL | 1,233 kWh | 1,154 kWh |
| Heat-up time, heat pump only10 to 50°C, 15°C air | 6 h | 7.2 h |
| Maximum water temperature, heat pump only | 70°C | 70°C |
| Maximum water temperature, with element | 75°C | 75°C |
| Operating range, heat pump | −7 to +43°C | −7 to +43°C |
| Operating range, with element | −25 to +43°C | −25 to +43°C |
Refrigerant5 lines
| Specification | ENTH-200 | ENTH-250 |
|---|---|---|
| Refrigerant | R290 | R290 |
| Refrigerant charge | 150 g | 150 g |
| Global warming potential (GWP) | 3 | 3 |
| Design pressure | 3.2 / 1.1 MPa | 3.2 / 1.1 MPa |
| Compressor | Rotary, DC inverter | Rotary, DC inverter |
Electrical6 lines
| Specification | ENTH-200 | ENTH-250 |
|---|---|---|
| Power supply | 220–240 V, 1 ph, 50 Hz | 220–240 V, 1 ph, 50 Hz |
| Maximum heat pump power input | 850 W | 850 W |
| Back-up electric element | 1,600 W | 1,600 W |
| Maximum power input, with element | 2,450 W | 2,450 W |
| Sound power level | 53 dB(A) | 53 dB(A) |
| Sound pressure levelAt 1 m | 41 dB | 41 dB |
Tank and connections4 lines
| Specification | ENTH-200 | ENTH-250 |
|---|---|---|
| Tank | Enamelled steel | Enamelled steel |
| Corrosion protection | Magnesium anode; electronic anode optional | Magnesium anode; electronic anode optional |
| Rated pressure | 0.85 MPa | 0.85 MPa |
| Water inlet, outlet and drain | G 3/4" | G 3/4" |
Size and weight4 lines
| Specification | ENTH-200 | ENTH-250 |
|---|---|---|
| Net dimensions, W × D × H | 600 × 625 × 1,802 mm | 600 × 625 × 2,022 mm |
| Packed dimensions, W × D × H | 690 × 690 × 1,960 mm | 690 × 690 × 2,180 mm |
| Net weight | 94 kg | 106 kg |
| Gross weight | 114 kg | 125 kg |
Controls and connectivity3 lines
| Specification | ENTH-200 | ENTH-250 |
|---|---|---|
| Connectivity | WiFi, TCL Home app, over-the-air updates | WiFi, TCL Home app, over-the-air updates |
| Interfaces | SG-Ready, Modbus | SG-Ready, Modbus |
| Functions | Holiday mode, timed heating, disinfection cycle at 70°C | Holiday mode, timed heating, disinfection cycle at 70°C |
Approvals, cover and identification4 lines
| Specification | ENTH-200 | ENTH-250 |
|---|---|---|
| MCS | MCS certification pending, expected October 2026 | MCS certification pending, expected October 2026 |
| Cover included | 24 months, whole appliance, parts and labour | 24 months, whole appliance, parts and labour |
| Manufacturer | TCL | TCL |
| TCL model code | KZd40-RS20WF-T3 | KZd40-RS25WF-T3 |
Confirmed by TCL in writing, 29 September 2026. Sound pressure at 1 m is 41 dB. From cold on the heat pump alone, 10 to 50°C with 15°C air, the ENTH-200 takes 6 hours and the ENTH-250 7.2 hours. Room-size requirements for the exact 150 g charge need clarification from TCL; your installer must check siting, airflow and service access. TCL’s EU product fiche rates both models A+ for water heating at XL load profile. The final UK label and supplied configuration must be confirmed before ordering.
Installation
Fitted by a qualified installer.
The ENTH-200 and ENTH-250 need an installer competent in unvented hot water systems. They must follow TCL’s instructions, including R290 safety requirements, and the building regulations for the installation location. In England, an appropriate competent person scheme can self-certify the work; otherwise building control must be notified before it starts. A qualification alone is not a notification exemption.
We do not install. When you enquire, we put you in touch with a partner installer where one covers your area.
Installer essentials
Both models unless stated. From TCL’s service manual V25.07.11.4 and product fiche.
RegulationsUnvented hot water; applicable local building regulations
Water connectionsInlet, outlet and drain, G 3/4"
Power supply220–240 V, 1 ph, 50 Hz
Power input850 W maximum heat pump; 2,450 W maximum with the element
Rated pressure0.85 MPa
Operating range−7 to +43°C heat pump; −25 to +43°C with the element
Footprint and height600 × 625 mm; 1,802 mm or 2,022 mm
Weight before filling94 kg or 106 kg
Packed size690 × 690 × 1,960 mm or 2,180 mm
RefrigerantR290, 150 g, GWP 3
DuctingOptional: up to two ducts at the top, each up to 5 m (TCL manual)
ClearancesAt least 800 mm above; 2,000 mm and 800 mm to the walls at the sides (TCL manual)
Next step
Tell us about your home, and we will take it from there.
Send us a short enquiry. We will answer your questions, check the unit suits your home and, where a partner installer covers your area, put you in touch.
Technical terms, made simple
What the figures mean for you.
COP: heat for your electricity
A tested COP of 3.30 means about 3.3 units of heat delivered per unit of electricity used during that test. It is not a fixed saving on your bill.
kWh: electricity used
This is the unit on your electricity bill. TCL’s annual figures use the same standard “XL” hot water demand test for both models.
dB: two different measures
Sound power describes the source. Sound pressure is measured at a distance. The 53 dB(A) and 41 dB figures are different measurements, not competing noise ratings.
Maximum temperatures and operating limits are not promises of the same efficiency in every condition. Your installer should size the unit for demand and assess the air source, noise and service access.
Choose your package
Your model. Your level of cover.
Compare the water heaters, add your preferred Care option and request a price for supply or an installation enquiry.
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