TGC RJW20SN(WM) 20L/min Temperature-modulated Superslim Underbench Gas Water Heater
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Remote Control: H120 x W90 x D18 mm Warranty Period Permanent (parts covered for the first 3 years) EMSD Info
The TGC RJW20SN(WM) 20L/min Slim Concealed Gas Water Heater features an ultra-slim 75mm body design, specifically crafted for concealed installation in modern homes to maximize space while providing a stable, thermostatic shower experience.
Product Features
- Ultra-Slim Design: With a body thickness of only 75mm, it is designed for concealed installation to enhance aesthetics and home space.
- Precise Temperature Control: Features a 16-level digital thermostatic system with settings from 35°C to 60°C to ensure consistent water temperature.
- Flexible Temperature Adjustment: Water temperature can be set as low as 35°C to meet different seasonal needs.
- ECO Energy Saving Mode: One-touch activation reduces water flow for energy-saving and environmental benefits.
- Automatic Ignition: Fully automatic ignition design ensures simple and direct operation.
- Wired Remote Included: Comes with one wired remote for instant temperature control in the bathroom, with support for up to 3 remotes.
Product Specifications
- Series: Concealed Water Heater Series
- Overall Dimensions: H 405 x W 350 x D 75 mm
- Hot Water Supply (25°C Temperature Rise): 20 L/min
- Gas Consumption (Max - Min): 161.3 (44.8) – 13.7 (3.8) MJ/hr (kW)
- Weight: 16.5 kg
- Power Supply: 220V 50Hz AC
- Exhaust Method: Forced Exhaust Balanced Flue
- Maximum Temperature Setting: 60°C
- Pipe Connection (B.S.P): Cold Water 1/2", Hot Water 1/2"
- Minimum Operating Water Pressure: 10 kPa / 1.5 p.s.i
Energy Label Information
- Energy Efficiency Grade: 1
- Country of Origin: Japan
- Gas Type: Town Gas
- Thermal Efficiency (Full Load): 91.9%
- Thermal Efficiency (Half Load): 94.3%
- Rated Thermal Load (kW): 44.8
- Measured Thermal Load (kW): 48.2
Important Information
- Free Services: Includes free standard installation and delivery services.
- Warranty: Includes free permanent warranty (first 3 years includes parts).
The product information above is for reference only; everything is subject to the brand's official website.
TGC RJW20SN(WM) 20L/min Temperature-modulated Superslim Underbench Gas Water Heater Review
Installation
All installation job are covered by BBE's insurance policy, including Third Party Liability Insurance & Employees' Compensation Insurance (issued by Zurich Insurance Hong Kong).
| Gas Water Heater Standard Installation Fee | |||
| Gas Water heater | $650 | ||
| Gas Water Heater standard installation include: a. Connect Gas pipe b. Connect Electricity c. Connect Water pipe Dismantle & disposal the old heater charge $100 |
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| Gas Water Heater Extra Fee List | |||
| Site inspection (monday~friday) (No return) | $200 | ||
| Only dismantle & disposal the old heater | $150 | ||
| Stairs fee | $30 | ||
| Installation surcharge for Tung Chung / Ma Wan area | $150/$100 | ||
| Installation surcharge for Discovery Bay area | $450 | ||
| Installation surcharge for Hong Kong Island | $50 | ||
| REMARK | |||
| **Installation fee table above quote is the designated contractor responsible for BBE** | |||
| Such as by other agents or other contractors deilvery fee/installation fee will be different. For more information, please contact our inquiry | |||
| Standard power socket be provlded by customer | |||
| If extra installation fee is not in the installation list,need to quote. | |||
| Location of installation are decided by customer.Any re-location after installation shall be subjected to extra charge. | |||
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Standard installation is only applicable to residential user. No installation for shops, offices, factories and commercial clients |
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Why us?
Why Choose BBE?
The trusted choice for more than 300,000 households in Hong Kong. We focus on exceptional quality, professional guidance, and a more peace-of-mind shopping experience.
Multiple Large Showrooms
Experience in person · Compare on the spot
Visit our flagship showrooms in Mong Kok, Causeway Bay, and Tuen Mun. Explore more than 1,000 European, American, and Japanese kitchen appliances, and get on-site recommendations from professional advisors for selection and installation.
Real Customer Service · Dedicated Follow-up
Order confirmation · Peace of mind follow-up
Each order is handled by a dedicated team who contacts and confirms details to ensure smooth delivery and installation. You can also reach real customer service via WhatsApp anytime.
1-to-1 Expert Consultation
Instant support · Professional answers
Get real-time professional support via WhatsApp. Whether you need help comparing appliance specifications, checking dimensions, or answering installation questions, our expert team will respond promptly.
100% Official Stock
No parallel imports · Clear warranty coverage
All appliances are official products from the Hong Kong总代理. Enjoy at least one-year manufacturer warranty and a 7-day replacement guarantee for faulty items, for added peace of mind after purchase.
Award-Winning
Recognized by brands · Valued service
Our service quality is recognized by the industry and top brands. We have received the TGC Sales Gold Award from the Gas Company and Daikin’s Diamond-level “Daikin Star” honor, along with multiple partner awards and distributor recognitions.
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One-stop service · More peace of mind
Our website uses SSL encryption, supports multiple electronic payment methods, and provides a one-stop professional delivery and installation service, making the entire shopping process more convenient and reassuring.

















































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