Why You Need A Tankless Water Heater With Battery Backup?

Looking for a tankless water heater that has battery backup? Look no further than the Energy Star qualified Rinnai RTBU320WKA. This water heater has a capacity of 320 gallons and can be configured with one or two tanks. The Rinnai RTBU320WKA offers an automatic shut-off feature to ensure safety, as well as a 21-day comfort guarantee.

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Quick View For The Top 10 Best Tankless Water Heater With Battery Backup

Top 10 Best Tankless Water Heater With Battery Backup: Features & Reviews

Bestseller No. 1
HUGO Battery Backup for Tankless Water Heaters and...
  • HUGO is packed with intelligent features that work seamlessly with gas-powered tankless water heaters, i.e. flow sensor, temperature sensor, pure sine wave, automatic switch over, etc.
  • Pure sine wave output. Serves as a protection barrier to safeguard expensive tankless water heater's CPU.
  • Built to last. IP54 grade enclosure. All weather proof and suitable for all outdoor or indoor installations.
  • Recognized and approved by Rinnai USA, compatible with Navien, Rheem, Noritz, and all other gas power tankless water heaters and appliances.
  • 5-13 hours of continuous operation providing on average 3-7 days of normal usage, giving you the comfort of hot water while power is out.
SaleBestseller No. 2
MAREY GA5FLP 1.32 GPM, 34,120 BTU's LP Gas Flow...
  • ECO-FRIENDLY WATER HEATER: Save energy using less gas during the warm months with the Marey Tankless Liquid Propane Gas Water Heater; Color: White; Weight: 10.14 pounds
  • BATTERY POWERED: Tankless water heater starts with pulse ignition powered by (2) D batteries (not included); No cords necessary
  • AUTOMATIC SHUT-OFF: Multiple safety sensors, such as auto cut-off, automatic ignition, anti-dry combustion, over-pressure, overheating, flameout protection, and twin solenoid valves
  • TEMPERATURE CONTROL: Ideal for indoor use in apartments, cabins, and tiny homes; Control your temperature year-round with the convenient summer/winter switch; Not recommended for elevations above...
  • FEATURES: 1.32-GPM heater is activated by water flow rather than water pressure; Minimum activation rate: 0.65 GPM; Maximum input rating: 34,120 BTUs; Minimum temperature: 6.80 to 66 degrees...
Bestseller No. 3
MAREY GA10LP Power 10L 3.1 GPM Propane Gas...
  • This unit is flow activate
  • Save up to 60% on electricity bills for water heating
  • Compact design saves space and is easy to install almost anywhere
  • No electrical connection is required so it's perfect alternative for those homes experiencing frequent power outages
  • Unlimited hot water whenever is needed
SaleBestseller No. 4
APC UPS Battery Backup and Surge Protector, 600VA...
  • 600VA / 330W battery backup power supply
  • 7 Outlets (NEMA 5-15R): 5 Battery Backup and Surge Protector; 2 Outlets with Surge Protection Only
  • 1 USB Charger Port (1.5A) for cell phones, portable electronics
  • 5' Power Cord, right-angle 3-prong wall plug (NEMA 5-15P), wall-mountable. Plus free Windows PC power-management software (Mac OS uses native "Energy Saver" Settings)
  • Replaceable Battery. Easily replace the battery back up with a genuine APC replacement battery, model APCRBC154 (sold separately)
Bestseller No. 5
Rinnai RUC98iN Ultra Series Indoor Natural Gas...
  • INDOOR installation only. Fuel Type: NATURAL GAS.
  • Concentric or PVC venting option
  • Up to 0.96 Energy Factor/Up to 0.92 Uniform Energy Factor
  • The space-saving design allows Indoor Installation type
  • Ultra low NOx emissions
SaleBestseller No. 6
Hot Water Heater,110V 3000W Mini Electric Tankless...
  • 【SELLER TIPS】Those who mind will buy with caution! ! !The heating power of this product is constant, the temperature is adjusted by the water flow regulating valve or the tap switch, the high...
  • 【INSTANT & SUFFICIENT HOT WATER】The heating of the product is adjusted by the water flow regulating valve or the faucet switch. Large water flow means low temperature, and small water flow means...
  • 【SMART SELF ADJUSTMENT】The hot water heater adjusts power input based on flowing rate and temp setting in real time. thus you still get ideal temperature instead of scalding hot water, which means...
  • 【Eco & Electric & Water Saving】 Safe heater, save up to 55% on your electric cost, water saving, no pollution, no exhaust gas.The heating of the product is adjusted by the water flow regulating...
  • 【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...
Bestseller No. 7
APC UPS 1500VA UPS Battery Backup and Surge...
  • APC UPS 1500VA / 900W battery backup power supply
  • 10 Outlets (NEMA 5-15R): 5 surge protector with battery backup; 5 outlets with Surge Protection Only
  • Boost Automatic Voltage Regulation (AVR): instantly corrects low/high voltage fluctuations without discharging the battery, and is Active PFC compatible
  • Replaceable Battery: Easily replace the battery back up with a genuine APC replacement battery, model APCRBC124 (sold separately)
  • 1 GB network dataline protection, 6' Power Cord, right-angle 3-prong wall plug (NEMA 5-15P), and free Windows PC power-management software (Mac OS uses native "Energy Saver" Settings)
Bestseller No. 8
Portable Tankless Water Heater, GASLAND Outdoors...
  • 🏄‍♂【On Demand Hot Water】 Maximum power output 41,000BTU/Hr, get instant endless hot water easily wherever you are. No need to preheat before using tankless water heater. As soon as you turn...
  • 🏄‍♂【CSA Approved】CSA approved Gasland tankless water heater, safe as per Canadian and US Standard. Flame failure device, anti-freezing protection, over heating protection to ensure the...
  • 🏄‍♂【Energy Saving】 Compact and light weight structure with 11.5% energy saving technology. The propane water heater exchanger and main burner are desinged with advanced combustion...
  • 🏄‍♂【Lightweight Portable Design】 Compact size and lightweight design for easily carry. It can bring a amazing hot shower for you when you are camping, to the beach, etc. Also you can wash...
  • 🏄‍♂【Excellent Customer Service】We have professional team to offer you excellent service. If you have any question, please feel free to contact us from Monday to Friday.
SaleBestseller No. 9
6699 1/6HP Portable Utility Pump Submersible Small...
  • 【Small Pump with Stable Perfromance】1/6 horse power energy-efficient motor with thermal overload protection, has the ability to deliver water to maximum height 16.5 feet.
  • 【Portable and Easy to Use 】Easy to install for quick draining, portable small pump with 10 feet power cable for easy use.
  • 【Submersible Pump】There are two plastic hose adapters included, GHT 3/4" for garden hose, and 1" for PVC lay flat hose.
  • 【Drain water efficiently】It works by simple plug-in operation, ideal for removing clean water can remove water level down to 1/2". Not suitable for dirty water.
  • 【Transfer Water Quickly】The submersible pump is designed for water removal in home applications. Pump can be used for sump service and dewatering. Unit is constructed of hi-impact corrosion...
Bestseller No. 10
Bosch Electric Mini-Tank Water Heater Tronic 3000...
  • 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...
  • 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


1. What is a tankless water heater?

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A tankless water heater is a type of water heater that uses energy instead of gas or oil to heat water. This type of water heater typically uses a battery to power the heating element, and it can be portable or fixed.
2. How does a tankless water heater work?

A tankless water heater works by converting energy from electricity into heat, and then using that heat to warm up your water. The battery powers the heating element, so there is no need for a gas or oil line in your house. This means there is little if any down time or maintenance required, which is great for people who are busy or have tight schedules.
3. What are the benefits of using a tankless water heater?

There are many benefits to using a tankless water heater, especially if you’re concerned about your energy bills or you want to reduce your carbon footprint. Tankless water heaters are relatively new technology, so they’re not as old as traditional water heaters and they use less energy overall. They’re also portable, so you can move them around if you need to change rooms in your houseor if you’re moving into a new home. Finally, they’re also affordable, which is great news for people on a budget.

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