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Rasonic RWH-N10TF(T)-B 10L Instantaneous TG Gas Water Heater (Top-flue) (Black Matte)
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The Rasonic RWH-N10TF(T)-B is a high-performance 10L constant temperature instantaneous town gas water heater featuring a stylish Smoke Black finish. Equipped with a Japanese brand CPU for real-time monitoring, it ensures stable and precise water temperatures for a comfortable bathing experience.
Smart Constant Temperature Technology
- Precise Control: Built-in Japanese brand CPU intelligently adjusts core components to maintain temperature within ±1°C, eliminating fluctuations.
- High Heating Performance: Rated heat load of 22 kW ensures instant hot water supply of 10 liters per minute (at 25°C temp rise).
- Slim and Space-saving: A compact 150mm depth combined with a top-outlet exhaust design makes it suitable for various bathroom installations.
- Safe and Reliable: Utilizes a continuous pulse ignition system and multiple safety protection devices to ensure operational safety.
Product Specifications
- Model: RWH-N10TF(T)-B
- Color: Smoke Black
- Gas Type: Town Gas
- Exhaust Type: Top Outlet
- Rated Heat Load: 22 kW (Max) / 5.5 kW (Min)
- Hot Water Supply (25°C Rise): 10 L/min
- Hot Water Supply (40°C Rise): 6.25 L/min
- Temperature Range: 35°C - 60°C
- Minimum Operating Water Pressure: 20 kPa
- Dimensions: 565 x 360 x 150 mm (H x W x D)
- Net Weight: 13 kg
- Power Supply: AC 220V ~ 50Hz (Power Consumption 25W)
- Warranty: Original 3-year full machine warranty
Energy Label Information
- Energy Label Grade: Grade 1
- Place of Manufacture: China
- Gas Type: Town Gas
- Thermal Efficiency (at 100% Load): 93.5%
- Thermal Efficiency (at 50% Load): 93.0%
- Rated Heat Input: 22.0 kW
- Measured Heat Input: 21.8 kW
The product information above is for reference only; everything is subject to the brand's official website.
Popular Comparisons
Customer reviews
Write a reviewOverall rating
32 reviews
Showing 15 of 32 reviews
Mr. Wong
舊嗰部熱水爐成日一時凍一時熱，終於頂唔順換咗佢。呢部樂信恆溫真係冇得頂，水溫好穩定，小朋友沖涼都安心好多。BBE安排師傅上嚟裝都好快手，整體滿意。
Pe********g
It works as advertised, the temperature is stable. However, the ignition sound is a bit louder than I expected. Not a deal-breaker, but something to be aware of. For the price, it's a decent unit.
Mrs. Chan
屋企人多，之前成日爭廁所。換咗呢部之後，就算廚房用緊熱水，我沖涼都唔會搶水，水溫依然好穩定，出水夠快夠力，解決咗大問題。
K. Y. Lee
BBE CS 好幫得手，問咗好多installation問題都好有耐性。部機個恆溫function真係冇得彈，沖涼終於唔會忽冷忽熱。個design好slim，好滿意。😊
Mrs. Wong
The heater itself is fine, temperature is stable. But the control panel buttons are a bit small and not very intuitive to use. Delivery scheduling could also be more flexible.
Mr. Leung
問過CS先買，確認頂出式啱用。換咗之後水溫真係好恆定，話用日本CPU控制真係有啲料到。屋企有老有嫩，用得安心好多。
Ah**t
以前用開儲水式，冬天沖涼要就住就住。換咗呢部即熱式真係爽好多！✨ 而且比想像中慳煤氣，個智慧節能 design 唔錯。
Ch*****m
The smokey black colour is so chic! It matches my new bathroom design perfectly. Super slim body, doesn't take up much space at all. Delivery was next-day too.
Eric
The ±1℃ temperature control is impressive. 10L/min flow rate is more than enough for my small apartment. Good performance for this price point.
Be****w
10L出水量好夠力，沖涼好爽！就算屋企人喺廚房開水喉，水溫都唔會點變，呢點要讚！👍
Sa*****m
The smokey black finish gives my bathroom a very modern aesthetic. Super happy with this purchase.
T. C. Ho
Bought this for my rental unit. My tenant said it works perfectly. A reliable and safe choice.
Al***u
Works as expected. The hot water is consistent and the pressure is good. Great value.
Mr. Lee
送貨快，安裝快。即開即熱，水溫穩定，慳返好多時間。
Ah****g
恆溫好得，夠熱，冇投訴。送貨快。👍
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Installation
Gas Water Heaters
Standard Installation Charges
| Item | Charge |
|---|---|
| Install gas water heater | HK$650 |
| Remove and dispose of old unit during installation | HK$100 |
| Site inspection (non-refundable; not available on Saturdays) | HK$200 |
| Standalone removal of gas water heater | HK$200 |
| Staircase fee (per floor) | HK$30 |
| Discovery Bay installation surcharge (per order) | HK$450 |
| Tung Chung installation surcharge (per order) | HK$100 |
| Park Island installation surcharge (per order) | HK$100 |
| Hong Kong Island installation surcharge (per order) | HK$50 |
Note: Standard installation includes gas hose, water pipe and electrical connections. Standard installation applies to residential customers only.
Delivery Charges
Basic Delivery
| Item | Charge |
|---|---|
| Delivery (per item) | HK$100 |
| Tung Chung, Ma Wan and Discovery Bay surcharge (per delivery) | HK$100 |
| Carrying distance to delivery location exceeds 100 m | Additional charges apply |
Note: Charges may differ if delivery is arranged by an agent. Please contact us for details.
Staircase Handling
Except for village houses, where 14 steps count as one floor, other buildings count 10 steps as one floor. The first 5 steps are free of charge.
| Item | Charge |
|---|---|
| General appliances | HK$30 / item / floor |
| Window AC, 3/4 HP to 1 HP | HK$30 / item / floor |
| Window AC, 1.5 HP to 2.5 HP | HK$50 / item / floor |
| Window AC, 3 HP or above | To be discussed |
| Split AC, refrigerator, washing machine | HK$50 / item / floor |
| Built-in oven, steam oven, chimney hood, built-in / freestanding dishwasher | HK$50 / item / floor |
Note: Charges may differ if delivery is arranged by an agent. Please contact us for details.
General Notes
- The above installation fees are quoted for work handled by BBE’s appointed contractor / appointed registered electrical contractor.
- Charges may differ if delivery/installation is handled by other agents or contractors. Please contact us for details.
- A compliant power supply must be provided by the customer near the appliance.
- Items not listed in this fee schedule must be discussed with the technician.
- The installation location must be confirmed by the customer. Relocation or reinstallation after installation at the customer’s request will be quoted separately.
- Installation schedule: Hong Kong Island (Tue, Thu, Sat); Kowloon (Mon to Sat); New Territories (Mon to Sat).
- Delivery coverage excludes outlying islands, restricted areas and overseas locations.
- Delivery or installation is generally arranged during office hours. For non-office hours such as evenings or public holidays, please check feasibility in advance.
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.
Mong KokCauseway BayTuen Mun
100% Official StockNo parallel imports · Clear warranty coverage
All appliances are official products from the Hong Kong authorised distributors. Enjoy at least one-year manufacturer warranty and a 7-day replacement guarantee for faulty items, for added peace of mind after purchase.
Real Customer Service · Dedicated Follow-upOrder 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 or phone call.
1-to-1 Expert ConsultationInstant 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.
Award-WinningRecognized 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.
Safe Shopping · Professional InstallationOne-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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