10 Best Rv Tankless Water Heater of December 2025

• CONVENIENT HOT WATER HEATER: 4 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 13.75 W x 13.75 H x 13.5 D Inches
• LONG LASTING QUALITY: This electric water heater is easy to maintain and has premium glass-lined material for a long service life. (Amps 12A, Volts (VAC) 120)
• INDEPENDENT INSTALLATION: 36-37" cord plugs into a 120 volt outlet for independent installation or in-line with a large hot water source
• FAST RECOVERY RATE: Eliminates long waits for hot water at your sink, get on demand hot water at your every need (supplies up to 2 sinks at a time)
• EASILY MOUNTED: Can be shelf, wall or floor mounted (bracket included); simply tap into the cold water line and install the water heater directly at the sink to provide hot water

Bosch Thermotechnology

• 10 gallon water tank
• 12,000 btu rating
• Weight: 46 lbs.
• Ignition Type - Direct Spark Ignition

SUBURBAN MFG

• 2.5-gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it
• Electric water heater is easy to maintain and has glass-lined tank for long service life
• Thermostat Control allows adjustment of water temperature.High Limit device provide protection while overheating.
• Plugs into 120 volt outlet for independent installation or in-line with a large hot water source.(Max. water pressure is 150 PSI,CSA listed Temperature & Pressure relief valve included)
• Can be shelf, wall or floor mounted ; Simply tap into the cold water line and install the water heater directly at the sink to provide hot water. Product dimension:11.75" W x 17.25" H x 10.38" D.

CAMPLUX ENJOY OUTDOOR LIFE

• 6 gallon water tank
• 12,000 btu rating
• Weight: 32.9 lbs

Suburban Manufacturing

• Lifetime warranty
• Save up to 60-percent on your water heating cost with an ECOSMART electric tankless water heater
• Never run out of hot water with an ECOSMART tankless water heater
• Patented Self Modulating Technology and design
• ECOSMART tankless water heaters are 99.8-percent energy efficient.Uniform Energy Factor:0.98

Ecosmart

• CONVENIENT TANKLESS HOT WATER HEATER: 3. 4 kW output tankless electric water heater eliminates long waits for hot water at point-of-use
• EASY INSTALLATION: Easily install under any bathroom or kitchen sink and get on demand hot water at your every need
• SPACE SAVING: Mounts on wall vertically or horizontally and is space saving, ultra-compact, and lightweight
• GREAT EFFICIENCY: 98% efficient with minimal stand-by loss. Water pressure range of 10-150 PSI
• 30 A

Bosch Thermotechnology

• Designed specifically for RVs, trailers, tiny houses, cabins, mobile washing services, and more
• Takes up 1/2 the space and weighs 1/3 as much as a 10-gallon tank
• No pilot light and very high propane efficiency
• Reliable, proven VariFlame technology control system
• Designed, assembled and tested in the USA

PrecisionTemp

• CONVENIENT HOT WATER HEATER: 2.5 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 13.75 W x 13.75 H x 10.75 D Inches
• LONG LASTING QUALITY: This electric water heater is easy to maintain and has premium glass-lined material for a long service life. (Amps 12A, Volts (VAC) 120)
• INDEPENDENT INSTALLATION: 36-37" cord plugs into a 120 volt outlet for independent installation or in-line with a large hot water source
• FAST RECOVERY RATE: Eliminates long waits for hot water at your sink, get on demand hot water at your every need (supplies up to 2 sinks at a time)
• EASILY MOUNTED: Can be shelf, wall or floor mounted (bracket included); simply tap into the cold water line and install the water heater directly at the sink to provide hot water

Bosch Thermotechnology

• 【INSTANT & SUFFICIENT HOT WATER】Applied with 5.5KW heating system, the electric water heater supplies instant, consistent and endless hot water of 116℉or higher temp shortly, no waiting for preheat nor terrible temp up & down, perfect companion for sinks. Time to get rid of those "lukewarm" toys.
• 【SMART SELF ADJUSTMENT】The hot water heater adjusts power input based on flow rate and temp setting in real time. For example, less power will be applied by the system when waterflow reduced, thus you still get ideal temperature instead of scalding hot water, which means comfortable experience. Optimal energy efficiency of 98% saves considerable electric charge.
• 【CONVENIENT USE】The tankless water heater comes with digital display & touch control panel so temp setting is easy job. Now turn on the tap and let the smart unit do the rest, you needn’t go through hard lesson about temp setting by a mixer tap without any hint. The Black model comes with Remote control, useful for installation under sink.
• 【SAFE and DURABLE】Applied with multiple protection devices, every piece goes through strict tests to ensure 100% safe. Inner water and electricity lines are designed to run separately so as to avoid leakage or harm of scale build up. Approval by ETL and qualifies for UL, you can expect outstanding performance for years to come.
• 【POINT of USE】The sleek tankless water heater is compact as an oatmeal box, making it possible to install anywhere close to outlet and avoid energy waste. It can be mounted horizontally, vertically, obliquely, ideal for kitchen, bar, school, hospital, community and hair salon. Please verify it is the right size for you: 5.5kW@240V; dimensions 11" x 7.5" x 2.35"; pipes fittings :1/2" NPT.

ECOTOUCH

• 0.5-GPM flow rate
• Designed for undersink hardwiring, horizontal installation
• Two mounted chrome compression fittings
• Rear electric knock-out
• 3/8-Inch cold water inlet and outlet connections

Chronomite