The two models
| ENTH-200 | ENTH-250 | |
| TCL model code | KZd40-RS20WF-T3 | KZd40-RS25WF-T3 |
| Stated capacity | 204 L | 250 L |
| Net size, W × D × H | 600 × 625 × 1,802 mm | 600 × 625 × 2,022 mm |
| Net / gross weight | 94 / 114 kg | 106 / 125 kg |
| Packed size, W × D × H | 690 × 690 × 1,960 mm | 690 × 690 × 2,180 mm |
| Water inlet, outlet, drain | G 3/4" | |
| Rated pressure | 0.85 MPa | |
| Power supply | 220–240 V, 1 ph, 50 Hz | |
| Power input | 850 W maximum heat pump; 2,450 W maximum with the 1,600 W element | |
| Maximum water temperature | 70°C heat pump only; 75°C with element | |
| Operating range | −7 to +43°C heat pump; −25 to +43°C with element | |
| Refrigerant | R290, 150 g, GWP 3; not an F-gas | |
| Tank | Enamelled steel; magnesium anode, electronic anode optional | |
| Heat-up, 10 to 50°C, 15°C air | 6 h | 7.2 h |
| Sound power / pressure at 1 m | 53 dB(A) / 41 dB | |
| Controls | WiFi, TCL Home app, over-the-air updates; SG-Ready and Modbus | |
Space and ducting
- Room size, ventilation and service access must be checked for the exact installation. Do not treat the unit footprint as the required room size.Installer assessment required; TCL clarification outstanding
- Clear space without ducts: at least 800 mm above the unit, and 2,000 mm and 800 mm to the walls at either side, as drawn in the manual.TCL installation and service manual V25.07.11.4, section 3
- Ducting is optional: up to two ducts at the top, fresh air in and exhaust out, each up to 5 m, few elbows, insulated at least 15 mm. Rated static pressure 30 Pa, maximum 90 Pa.TCL installation and service manual V25.07.11.4, section 3.5
- Provide condensate drainage. Safety-valve discharge must be designed separately to the applicable local rules, including visibility and safe termination; do not assume an ordinary floor drain is suitable. A dedicated fixed supply with an RCD and circuit breaker; no extension leads.TCL installation and service manual V25.07.11.4
Still being confirmed with TCL
- UK energy label details
We publish each figure once TCL confirm it in writing. We do not estimate.
Regulations at a glance
- Unvented hot water: follow the building regulations for the installation location. Use a competent unvented hot water installer. In England, a qualification demonstrates competence but does not itself remove notification: use an appropriate competent person scheme to self-certify, or notify building control before work starts. Scotland and Wales have their own applicable guidance.Approved Document G, 2024, paras 3.40 to 3.42
- At least two independent safety devices in addition to any thermostat, for example a non self-resetting energy cut-out and a temperature and pressure relief valve.Approved Document G, 2024, paras 3.17 to 3.18
- R290 is a natural refrigerant, not an F-gas. Follow the manufacturer's instructions, including the R290 guidance.TCL installation and service manual, on request
- Can be specified as part of a Boiler Upgrade Scheme-funded system. Check current Ofgem scheme rules for each installation.Ofgem BUS installer guidance, version 5, paras 3.80 to 3.83
Cover
- 24 months on every unit from enthalvia: whole appliance, parts and labour.
- No registration and no annual service condition. Extendable up to six years with enthalvia Care. Ask for the full cover terms with your quotation and before you buy.
- For units installed in England, Scotland and Wales.
If something goes wrong, send us
- The model, ENTH-200 or ENTH-250
- The TCL model code and serial number from the rating plate
- The installation date, and who fitted it
- What is happening, with a photo if you can
Contact
info@enthalvia.com| Technical question | Subject: Technical question |
|---|---|
| Installation manual | Subject: Manual request |
| Stock and orders | Subject: Trade order |
| Fault or cover | Subject: Cover question or fault |

