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Rasonic RWH-N12RF(L)-B 12L Instantaneous LPG Gas Water Heater (Back-flue) (Black Matte)

Rasonic RWH-N12RF(L)-B 12L Instantaneous LPG Gas Water Heater (Back-flue) (Black Matte)

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  • $4,980
  • HK$3,753

Discounted price for other payments HK$3,869

Size 565 x 360 x 150 毫米 Warranty Period 3 year Energy Label Grade 1 EMSD Info

The Rasonic RWH-N12RF(L)-B is a 12L smart energy-saving LPG water heater designed for modern homes. Featuring an elegant smoky black finish and a rear flue design, it combines a Japanese CPU with ECO green technology to deliver a stable, high-efficiency bathing experience with a Grade 1 energy rating.

Product Features

  • ECO Green Technology: Outstanding energy performance that saves up to 40% more energy compared to traditional models.
  • Japanese CPU: Core components manufactured in Japan ensure precise operation, durability, and reliable quality.
  • Smart Constant Temperature System: Water temperature is accurately controlled within a 1°C range to eliminate fluctuations.
  • Smart Segmented Burner: Automatically adjusts combustion power based on inlet water temperature to optimize energy efficiency.

Safety Protection

  • 60-minute continuous combustion auto-off protection to prevent prolonged dry burning.
  • Dual monitoring solenoid valves effectively prevent gas leakage for enhanced safety.
  • DC Inverter Fan: Powerful performance that resists up to force 8 winds and prevents exhaust backflow.
  • Automatic fan speed and oxygen supply adjustment to prevent excessive carbon monoxide levels.

Product Specifications

  • Model: RWH-N12RF(L)-B
  • Gas Type: LPG
  • Exhaust Method: Rear Flue
  • Hot Water Supply: 12 Liters/min
  • Temperature Range: 35°C – 60°C
  • Minimum Operating Water Pressure: 20 kPa
  • Maximum Rated Heat Input: 26 kW
  • Minimum Rated Heat Input: 5.8 kW
  • Dimensions (H x W x D): 565 x 360 x 150 mm
  • Net Weight: 13.5 kg
  • Electrical Specs: AC 220V ~ 50Hz / 28W
  • Energy Efficiency Grade: 1
  • Place of Manufacture: China
  • Warranty: 3 Years

Energy Label Information

  • Energy Label Grade: 1
  • Place Of Manufacture: China
  • Gas Type: LPG
  • Thermal Efficiency (%) at 100% Load Condition: 93.0
  • Thermal Efficiency (%) at 50% Load Condition: 93.4
  • Rated Heat Input (kW): 26.0
  • Measured Heat Input (kW): 26.8


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

Rasonic RWH-N12RF(L)-B 12L Instantaneous LPG Gas Water Heater (Back-flue) (Black Matte) Review

Na*********g 30/08/2025

新屋裝修,對熱水爐冇乜idea,好彩BBE sales好有耐性解答。揀咗呢部煙墨黑,個樣好modern。最正係個恆溫,我沖完到我先生沖,水溫都keep得好好,唔會搶水。試過開ECO mode,感覺火力細啲但夠用,應該真係慳到氣。👍

Al*****w 11/08/2025

The smoky black finish is very sleek and matches my minimalist bathroom. The digital temperature display is a nice touch. Performance is solid, the constant temp is a huge upgrade. Knowing it uses Japanese core parts gives me confidence in its durability.

Ms. Tam 06/12/2025

The intelligent segmented flame control is noticeable; it doesn't go full blast just for washing hands. A bit pricey, but the 3-year warranty and promised energy savings make it a worthwhile investment. BBE's CS was very helpful.

Mr. Ho 22/10/2025

新屋入伙換熱水爐,揀呢部係因為信興牌有保證。恆溫真係做得好好,開住水龍頭水溫都唔會點變,幫小朋友沖涼就最放心。一級能源標籤希望長遠慳返啲煤氣費。

Da*****e 10/10/2025

買俾屋企兩老用,最緊要安全。睇中佢有60分鐘自動熄火同防漏氣保護,個直流變頻風機又話可以防廢氣倒灌,咁樣就安心好多。老人家話水溫好穩定,易用。

Ah**i 17/10/2025

住近海邊,之前個爐一打風就成日自己熄火。師傅介紹呢部話有強力風機,用咗幾個月,就算打風都完全冇事,出水穩定。真係解決咗我一大煩惱!

K. T. Lam 18/07/2025

Excellent performance. The constant temperature control is very precise, thanks to the Japanese CPU I guess. The DC inverter fan is also a great feature for high-rise apartments. Solid build.

Gr******g 15/11/2025

The unit works well most of the time. However, it can be a bit loud when it ignites. The temperature also fluctuates slightly if another tap is used. It's okay, but not perfect.

Mr. Cheung 18/12/2025

買嚟換租盤個舊爐。BBE個CS好幫得手,confirm咗係頂出式同石油氣啱用先買。有3年保養,又係一級能源,CP值算唔錯,希望襟用。

Fi****m 26/07/2025

裝修師傅介紹呢款背出式。最正係個智能分段火排,夏天用細火啲,感覺真係慳到煤氣。煙墨黑個design好靚,襯晒我個新廁所。

Mrs. Lee 13/07/2025

住高層,大風嗰陣好驚廢氣倒灌。呢部有直流變頻風機話可以抗八級強風,即刻安心晒。BBE送貨員有禮貌,會預先打電話通知。

Mi*****g 12/07/2025

話就話恆溫,但廚房一開水,沖涼水溫都係會變少少。係好過舊嗰部好多,但未去到perfect。不過不失啦。

Ch*****k 24/06/2025

The smoky black design is so chic! It matches my new bathroom decor perfectly. BBE delivery was next-day, very impressive service.

Mr. Cheung 07/02/2026

BBE recommended installer was very professional and quick. The unit is easy to operate. Water is hot and stable. Good.

Mr. Ho 13/08/2025

送貨超快。舊嗰部成日忽冷忽熱,換咗呢部舒服晒。恆溫準,一級能源標籤,抵買。

Installation

Gas Water Heaters

Standard Installation Charges

ItemCharge
Install gas water heaterHK$650
Remove and dispose of old unit during installationHK$100
Site inspection (non-refundable; not available on Saturdays)HK$200
Standalone removal of gas water heaterHK$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

ItemCharge
Delivery (per item)HK$100
Tung Chung, Ma Wan and Discovery Bay surcharge (per delivery)HK$100
Carrying distance to delivery location exceeds 100 mAdditional 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.

ItemCharge
General appliancesHK$30 / item / floor
Window AC, 3/4 HP to 1 HPHK$30 / item / floor
Window AC, 1.5 HP to 2.5 HPHK$50 / item / floor
Window AC, 3 HP or aboveTo be discussed
Split AC, refrigerator, washing machineHK$50 / item / floor
Built-in oven, steam oven, chimney hood, built-in / freestanding dishwasherHK$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.

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.

Safe Shopping · Professional Installation

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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