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Rasonic RWH-N12TF(T)-B 12L Instantaneous TG Gas Water Heater (Top-flue) (Black Matte)

Rasonic RWH-N12TF(T)-B 12L Instantaneous TG Gas Water Heater (Top-flue) (Black Matte)

(4.56) 16 reviews 30+ purchased Gift Points $19

    FPS/Bank Transfer/Cash
  • HK$4,980
  • HK$3,724

Discounted price for other payments HK$3,839

Size Body: 565 x 360 x 150 mm Warranty Period 3 Year Energy Label Level 1 EMSD Info

The Rasonic RWH-N12TF(T)-B Smart Energy Saving Constant Temperature Instantaneous Town Gas Water Heater features a slim Smoke Black chassis and a Japanese CPU for ±1°C precision temperature control. Delivering 12L/min of hot water combined with ECO technology, it ensures a highly efficient and safe bathing experience.

Main Features

  • ECO Green Technology: Innovative ECO technology significantly improves energy efficiency, saving up to 40% of energy.
  • Intelligent Constant Temperature: High-performance Japanese CPU controls water temperature between 35°C and 60°C, maintaining deviation within ±1°C.
  • Smart Multi-Stage Burner: Automatically adjusts combustion stages based on inlet water temperature to optimize efficiency.
  • DC Inverter Fan: Powerful fan withstands up to grade 8 wind, preventing exhaust backflow and ensuring complete combustion to prevent carbon monoxide issues.
  • Upgraded Core Components: Enhanced core parts improve the overall durability and stability of the unit.

Safety and Reliability

  • 60-Minute Continuous Combustion Protection: Automatically shuts down after 60 minutes of continuous operation to prevent overheating risks.
  • Dual-Monitoring Solenoid Valve: Built-in dual valves effectively prevent gas leakage for enhanced household safety.
  • Multiple Safety Protection Mechanisms: Integrated safety detection technologies ensure reliable operation under various environments.

Energy Label Information

  • Energy Label Grade: 1
  • Place of Manufacture: China
  • Gas Type: Town Gas
  • Thermal Efficiency (100% Load): 91.3%
  • Thermal Efficiency (50% Load): 93.3%
  • Rated Heat Input: 26.0 kW
  • Measured Heat Input: 25.7 kW

Product Specifications

  • Model: RWH-N12TF(T)-B
  • Exhaust Method: Top Exhaust
  • Hot Water Supply: 12 L/min
  • Minimum Operating Water Pressure: 20 kPa
  • Water Temperature Range: 35°C – 60°C
  • Voltage: AC 220V ~50Hz
  • Electric Power: 28W
  • Ignition Method: Continuous Pulse Ignition
  • Product Dimensions (HxWxD): 565 x 360 x 150 mm
  • Net Weight: 13.5 kg
  • Color: Smoke Black
  • Warranty Period: 3 Years


The product information above is for reference only; everything is subject to the brand's official website.

Rasonic RWH-N12TF(T)-B 12L Instantaneous TG Gas Water Heater (Top-flue) (Black Matte) Review

Be******g 08/12/2025

Impressed with the ±1℃ temperature stability from the Japanese CPU. No fluctuations at all, even when someone else uses water. A solid piece of engineering for the price. The specs on BBE's site were very detailed.

Al***o 19/07/2025

The smoky black finish is super stylish and matches our new bathroom's modern vibe. It's very slim, so it doesn't stick out much. Performance is great, heats up instantly. Delivery was on time as scheduled.

Mrs. Wong 11/12/2025

BBE安排師傅安裝好快手,服務唔錯。恆溫功能真係一流,幫小朋友沖涼唔怕再一時凍一時熱,溫度校喺40度就真係40度,好準確,用得好安心。

林伯 23/08/2025

打電話問過BBE啲操作問題,職員解釋得好清楚。部機黑色幾靚仔,操作好簡單,一個掣校溫度就得。點火快又靜,用得好放心。

Mr. Li 16/12/2025

Replaced an old unit in my rental flat. This Rasonic model is reliable and safe. Good value.

K.T. Mak 20/08/2025

Water flow feels a bit weaker than my old model. Not sure if it's the unit or my plumbing.

Em********g 14/11/2025

送貨快。部機好用,出熱水好快好穩定!👍

Ah****g 24/11/2025

即開即熱,水力夠猛,樂信牌CP值高。

Da******n 21/12/2025

Great water heater, happy with it.

Em*******g 15/07/2025

水溫恆定無忽冷忽熱

Ch*****e 07/08/2025

Instant heat is great! 🔥

Am****n 08/10/2025

Looks very sleek in black.

Br******g 12/07/2025

Consistent hot water 👍

Gr****o 10/02/2026

部機好薄唔阻地方

Fr*****m 24/01/2026

即熱夠快沖涼好爽

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
   
       
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.      

Standard installation is only applicable to residential user. No installation for shops, offices, factories and commercial clients

 

Delivery
  • Delivery: $100 per item (Waived for products with "Included delivery fee")
    a) Additional charge for Tung Chung, Ma Wan & Discovery Bay: $100 each job 
  • Additional Stair Charge for Delivery (Except village house will charge $50 for each level, All apartment or building will charge $50 for each 10 steps, below 5 steps free of charge)
    a) General appliances: $30 each
    b) Window type air conditioner: 3/4HP to 1HP $30 each, 1.5HP to 2.5HP $50 each, 3HP or above require discussion separately
    c) Split type air conditioner, refrigerator, washing machine: $50 each
  • d) Built-in oven , Built-in Steam oven,Chimney Type Hood: $50 each
  • Walking distance more than 100m : Extra fee
 
Installation Schedule
  • **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
  • Hong Kong Island (Tue,Thu,Sat) Kowloon (Mon to Sat) N.T. (Mon to Sat)

Why us?

Why Choose BBE?

The trusted choice of over 100,000 Hong Kong families, dedicated to delivering excellence in quality and service.

🏬 Multiple HK Showrooms

Visit our flagship stores in Mong Kok, Causeway Bay, and Tuen Mun to experience over 1,000 appliances from Europe, the US, and Japan. Our consultants are ready to provide expert installation advice.

💰 Best Price Guarantee

Awarded store with nearly 30,000 authentic reviews. We guarantee transparent and competitive pricing.

💬 1-on-1 Live Support

Get instant professional support via WhatsApp. From spec comparisons to dimension queries and installation questions, our expert team provides immediate answers.

100% Genuine Products

No parallel imports! All appliances are official Hong Kong distributor stock, coming with at least a 1-year original manufacturer warranty and a 7-day defective replacement guarantee.

🏆 Award-Winning Reputation

Our service quality is recognized by the industry and top brands alike. We have been honored with the Towngas TGC Sales Gold Award and Daikin’s Diamond Dealer status, alongside prestigious partner and distributor awards from Gree, Carrier, and Philips Smart Lock.

🔒 Secure Shopping & Install

Our site uses SSL encryption and supports various e-payments. We offer one-stop professional delivery and installation services for a worry-free experience.

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