TGC RJW15SN(WM) vs RJW15SD(S) Comparison

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RJW15SN(WM)

TGC RJW15SN(WM) 16L/min Temperature-modulated Superslim Underbench Gas Water Heater

HK$11,502 ~~HK$13,380~~

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RJW15SD(S)

TGC RJW15SD(S) SILVER 16L/min Temperature-modulated Superslim Gas Water Heater

HK$11,107 ~~HK$13,080~~

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Side by side

RJW15SN(WM) RJW15SD(S)

RJW15SN(WM) measures 405 × 350 × 75 mm, while RJW15SD(S) measures 584 × 350 × 75 mm (H × W × D). Both are 75 mm deep.
RJW15SN(WM) includes one wired remote control; RJW15SD(S) supports up to two additional wired remotes, purchased separately.
RJW15SN(WM) specifies a mechanical forced flue; RJW15SD(S) specifies a power flue room-sealed exhaust system.
RJW15SN(WM) lists full-load/half-load thermal efficiencies of 90.9%/93.7%, compared with 90.8%/93.5% for RJW15SD(S).

Item	RJW15SN(WM)	RJW15SD(S)
Series and design	Concealed Water Heater Series; underbench concealed design	Slim Constant Temperature Series; ultra-slim design
Colour	Not specified	Silver
Overall dimensions (H × W × D)	405 × 350 × 75 mm	584 × 350 × 75 mm
Weight	15.5 kg
Hot water supply	16 L/min at a 25°C temperature rise
Temperature range	35°C–60°C
Temperature settings	16 levels
Automatic temperature control	✅ Automatically adjusts heating power to maintain stable water temperature
ECO energy-saving mode	✅ One-touch activation reduces water flow to save energy and water
Automatic ignition	✅ Ignites automatically when the tap is opened
Included wired remote control	One included	Not specified
Additional wired remote controls	Optional additional wired remote control for bathroom and kitchen installation	Supports up to two additional wired remotes, purchased separately
Remote dimensions (H × W × D)	120 × 90 × 18 mm	Not specified
Exhaust method	Mechanical forced flue	Power flue room sealed
Gas type	Town gas
Maximum gas consumption	125.6 MJ/h (34.9 kW)
Minimum gas consumption	13.7 MJ/h (3.8 kW)
Rated heat load	34.9 kW
Measured heat load	36.4 kW	36.8 kW
Full-load thermal efficiency	90.9%	90.8%
Half-load thermal efficiency	93.7%	93.5%
Energy efficiency label	Grade 1
Power supply	220 V, 50 Hz AC
Minimum operating water pressure	10 kPa	10 kPa / 1.5 psi
Pipe connections	Not specified	3/4-inch B.S.P. connections for gas, cold water and hot water
Country of manufacture	Japan
Warranty	Service description: free permanent warranty, with parts included for the first 3 years. Attributes: 3-year warranty period.
Motor/compressor warranty in Attributes	Permanent	Not specified
Standard installation	Free standard installation
Delivery	Free delivery; additional delivery charges apply to Ma Wan and Discovery Bay
Usage and order restrictions	Not for industrial or commercial use; industrial and commercial orders or addresses are not accepted

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The above information is analyzed and compared by AI, and the content may not be 100% accurate. If you have any questions, please contact our sales staff or the brand for inquiries.