RINNAI RS15RML LPG Temperature-modulated Water Heater (Rear flue)
Citi Exclusive | $150 Instant Off
Interest-Free Installments
The RINNAI RS15RML is a high-performance LPG constant temperature water heater featuring a back flue design. It delivers a stable 15L/min hot water supply with advanced digital temperature control technology to eliminate water temperature fluctuations for a superior bathing experience.
Core Features
- Digital Constant Temperature: Offers 16 temperature levels from 35°C to 60°C, automatically adjusting flame power to ensure a consistent water temperature.
- 15L Large Flow Rate: High output of 15 liters per minute (at 25°C temperature rise), meeting the demand for simultaneous use in the kitchen and bathroom.
- Smart Operation: Features full automatic electronic ignition and supports up to two optional digital remote controls for convenient temperature adjustment from different locations.
- Safety Protection: Built-in multiple safety devices, including flame failure protection, overheat protection, and overpressure protection.
Energy Label Information
- Energy Label Grade: 1
- Place Of Manufacture: China
- Gas Type: LPG
- Thermal Efficiency (%) at 100% Load Condition: 90.0
- Thermal Efficiency (%) at 50% Load Condition: 93.8
- Rated Heat Input (kW): 33.7
- Measured Heat input (kW): 33.8
Product Specifications
- Model: RS15RML
- Gas Type: LPG
- Exhaust System: Forced Flue (Back Flue)
- Hot Water Supply: 15 L/min (25°C Temp. Rise)
- Temperature Range: 35°C - 60°C
- Minimum Operating Water Pressure: 10 kPa
- Power Supply: 220V (50Hz) AC
- Color: White
- Dimensions (H x W x D): 675 x 370 x 130 mm
- Weight: 15 kg
- Warranty: 3-year free parts warranty from the original manufacturer
【ATTENTION】An additional fee of $950 will be charged for delivery of this product to Ma Wan, an additional fee of $3100 will be charged to Discovery Bay, and an additional fee of $807 will be charged for each subsequent repair. In addition, this product cannot be used for industrial and commercial purposes. (Do not accept industrial and commercial orders/address)
The product information above is for reference only; everything is subject to the brand's official website.
Customer reviews
Write a reviewOverall rating
19 reviews
Showing 15 of 19 reviews
Mr. Wong
BBE送貨好準時,安裝師傅都好專業。屋企有小朋友,呢部恆溫真係好好,水溫好穩定,唔怕再忽冷忽熱。15公升沖涼同廚房一齊用都完全夠力。
Ke******k
I wasn't sure about the installation requirements. BBE's CS was super helpful and answered all my questions before I placed the order. The heater itself is very quiet.
Al****e
I added the optional remote and it's super convenient to set the temperature before even getting in the shower. Solid upgrade from my old one. Very user-friendly.
Je*******m
The simple white design is perfect for my new bathroom's minimalist vibe. It's not bulky at all. The constant temperature feature is a true game-changer.
Mr. Cheung
買嚟換租盤個舊爐,揀林內貪佢係日本牌子,襟用啲。有三年保養都安心好多。送貨快,租客滿意。
C. K. Chan
個爐係好用嘅,出熱水快又夠穩定。不過價錢就貴咗少少,希望襟用啦。送貨安排OK。
Mrs. Lee
廚房同浴室一齊開水都夠力,水溫完全冇變,慳返好多時間!真係一分錢一分貨。👍
Gr*******o
林內熱水爐嘅安全性同效率都好出色,真係可以放心使用。
Jo********g
Seeing the RINNAI water heater is really popular, it's worth buying!
Ah**t
Works as advertised. Hot water is stable and consistent.
La*******g
林內熱水爐好易操作,十分方便
王小姐
溫度選擇多,啱晒我需要 👍
阿強
唔會忽冷忽熱,沖得好舒服
Je*******m
3-year warranty is peace of mind.
Da*****e
Slim design fits my kitchen well.
No reviews match this filter.
Write a review
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.









