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20 Best Tankless Water Heater For Large Home (2023 Updated)

A tankless water heater for large home is a water heater that does not have a storage tank. Water is heated as it passes through a heat exchanger. This type of water heater is often used in large homes because it can provide a continuous supply of hot water.

20 Best Tankless Water Heater For Large Home

Product Image Product Name Features Price

Titan SCR-2 10.8 KW 3.5 GPM Residential Electric Tankless Water Heater

  • Endless Hot Water
  • Space Savings
  • Energy Saving, UL compliant & ETL Lead Free Certified

Rinnai V75IN 7.5 GPM Indoor Natural GAS Tankless Water Heater

  • Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended

Rinnai V65IP 6.5 GPM Indoor Propane Tankless Water Heater

  • 6.5 Gpm

Rinnai V53DeN 5.3 GPM Outdoor Natural GAS Tankless Water Heater

  • 5.3 Gpm

Rinnai V65EN 6.5 GPM Outdoor Natural GAS Tankless Water Heater

  • Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended

Rinnai Sensei SE+ Series 199 MBH Outdoor Condensing Natural GAS Tankless Water Heater RU199eN

  • 199,000 BTU

Rheem Performance 18 KW Self-Modulating 3.5 GPM Electric Tankless Water Heater

  • 18kw

Rinnai RU199iN 199,000 BTU Indoor Natural GAS Tankless Water Heater

  • 150 PSI Temperature 98
  • 140 F Natural Gas Pressure 3.5
  • 10.5 WC Voltage 120V / 60hz / 4A Maximum Flow Rate 0.26 GPM Gas Input 15,000

Stiebel Eltron Tempra 36 Plus Whole House Electric Tankless Water Heater

  • 36 Plus Tankless

Rinnai CU199iN 199,000 BTU Commercial Indoor Natural GAS Tankless Water Heater

  • 84 W

Titan Electric Tankless Water Heater N-160

  • N-160

Rheem Performance Plus 7.0 GPM Natural GAS Outdoor Tankless Water Heater 691466

  • Outdoor

Titan 18 Tankless Electric Tankless Water Heater

  • 18 W

Rheem Retex-13 KW Self-Modulating 2.54 GPM Tankless Electric Water Heater

  • Energy and cost savings: heats water only when it is needed for savings of up to 50% on water heating costs when used in a point-of-use application

Rheem Performance 27 KW Self-Modulating 5.3 GPM Electric Tankless Water Heater

  • Space savings: small, compact design fits perfectly in tight places like under cabinets and sinks
  • Great investment and value: energy cost savings

Rheem RTG-70XLP-1 Outdoor Propane Tankless Water Heater

  • Provides continuous hot water and increased energy savings in a compact space saving design
  • Great for homes with 1 to 2 bathrooms

Rheem Performance 24 KW Self-Modulating 4.6 GPM Electric Tankless Water Heater

  • up to 6 GPMWater-Saver Shower Head
  • 1.5 GPMStandard Shower Head
  • 2.0 GPMStandard Hand Sink
Titan SCR-2 10.8 KW 3.5 GPM Residential Electric Tankless Water Heater
  • Endless Hot Water
  • Space Savings
  • Energy Saving, UL compliant & ETL Lead Free Certified
Rinnai V75IN 7.5 GPM Indoor Natural GAS Tankless Water Heater
  • Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended
Rinnai V65IP 6.5 GPM Indoor Propane Tankless Water Heater
  • 6.5 Gpm
Rinnai V53DeN 5.3 GPM Outdoor Natural GAS Tankless Water Heater
  • 5.3 Gpm
Rinnai V65EN 6.5 GPM Outdoor Natural GAS Tankless Water Heater
  • Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended
Rinnai Sensei SE+ Series 199 MBH Outdoor Condensing Natural GAS Tankless Water Heater RU199eN
  • 199,000 BTU
Rheem Performance 18 KW Self-Modulating 3.5 GPM Electric Tankless Water Heater
  • 18kw
Rinnai RU199iN 199,000 BTU Indoor Natural GAS Tankless Water Heater
  • 150 PSI Temperature 98
  • 140 F Natural Gas Pressure 3.5
  • 10.5 WC Voltage 120V / 60hz / 4A Maximum Flow Rate 0.26 GPM Gas Input 15,000
Stiebel Eltron Tempra 36 Plus Whole House Electric Tankless Water Heater
  • 36 Plus Tankless
Rinnai CU199iN 199,000 BTU Commercial Indoor Natural GAS Tankless Water Heater
  • 84 W
Titan Electric Tankless Water Heater N-160
  • N-160
Rheem Performance Plus 7.0 GPM Natural GAS Outdoor Tankless Water Heater 691466
  • Outdoor
Titan 18 Tankless Electric Tankless Water Heater
  • 18 W
Rheem Retex-13 KW Self-Modulating 2.54 GPM Tankless Electric Water Heater
  • Energy and cost savings: heats water only when it is needed for savings of up to 50% on water heating costs when used in a point-of-use application
Rheem Performance 27 KW Self-Modulating 5.3 GPM Electric Tankless Water Heater
  • Space savings: small, compact design fits perfectly in tight places like under cabinets and sinks
  • Great investment and value: energy cost savings
Rheem RTG-70XLP-1 Outdoor Propane Tankless Water Heater
  • Provides continuous hot water and increased energy savings in a compact space saving design
  • Great for homes with 1 to 2 bathrooms
Rheem Performance 24 KW Self-Modulating 4.6 GPM Electric Tankless Water Heater
  • up to 6 GPMWater-Saver Shower Head
  • 1.5 GPMStandard Shower Head
  • 2.0 GPMStandard Hand Sink

1. Titan SCR-2 10.8 KW 3.5 GPM Residential Electric Tankless Water Heater

Titan SCR-2 10.8 KW 3.5 GPM Residential Electric Tankless Water Heater

  • Endless Hot Water
  • Space Savings
  • Energy Saving, UL compliant & ETL Lead Free Certified
  • 29 years in the business
  • Patented Design Assembly

Check Latest Price

Sold By Price
Amazon.com – Seller
eBay
Home Depot

Product Details

Specifications

Details
Required Volt Connection 220 volt
Application Type Residential
Indoor/Outdoor Indoor
Fuel Type Electric
Number of Showers 1-2

Reviews From Real Customers

toyotatruckboy
chabrown_0
denkthetank2

2. Rinnai V75IN 7.5 GPM Indoor Natural GAS Tankless Water Heater

Rinnai V75IN 7.5 GPM Indoor Natural GAS Tankless Water Heater

  • Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended
  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
  • Optimal Water Pressure: High-performance up to 7.5 GPM hot water flow rate for a powerful, constant stream
  • Enhanced scale detection lessens possibility of serious, long-term damage to unit

Check Latest Price

Sold By Price
Amazon.com
eBay
Home Depot
Lowe’s

Product Details

Specifications

Details
Fuel Type Liquid Propane (LP)
Fuel Type Natural Gas (NG)

Reviews From Real Customers

joe47030

3. Rinnai V65IP 6.5 GPM Indoor Propane Tankless Water Heater

Rinnai V65IP 6.5 GPM Indoor Propane Tankless Water Heater

  • 6.5 Gpm

Check Latest Price

Sold By Price
Amazon.com – Seller
Home Depot
SupplyHouse.com
Ferguson

Product Details

Specifications

Details
Fuel Type Liquid Propane (LP)
Fuel Type Natural Gas (NG)

Reviews From Real Customers

arvidpodsim
BeckyH7125
TNEinTexas2442

4. Rinnai V53DeN 5.3 GPM Outdoor Natural GAS Tankless Water Heater

Rinnai V53DeN 5.3 GPM Outdoor Natural GAS Tankless Water Heater

  • 5.3 Gpm

Check Latest Price

Sold By Price
Amazon.com – Seller
Home Depot
Ferguson
Big Frog Supply

Product Details

Specifications

Details
Weight 33.1 oz

Reviews From Real Customers

Greg Heyborne
Dexter & Tonya Scott

5. Rinnai V65EN 6.5 GPM Outdoor Natural GAS Tankless Water Heater

Rinnai V65EN 6.5 GPM Outdoor Natural GAS Tankless Water Heater

  • Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended
  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
  • Optimal Water Pressure: High-performance up to 6.5 GPM hot water flow rate for a powerful, constant stream
  • Enhanced scale detection lessens possibility of serious, long-term damage to unit

Check Latest Price

Sold By Price
Amazon.com
eBay – mblueliquidation
Home Depot
Supply Online

Product Details

Specifications

Details
Fuel Type Liquid Propane (LP)
Fuel Type Natural Gas (NG)

Reviews From Real Customers

RobS3576
HomeownersIssues9785
Breezer518621

6. Rinnai Sensei SE+ Series 199 MBH Outdoor Condensing Natural GAS Tankless Water Heater RU199eN

Rinnai Sensei SE+ Series 199 MBH Outdoor Condensing Natural GAS Tankless Water Heater RU199eN

  • 199,000 BTU

Check Latest Price

Sold By Price
Amazon.com
eBay
Home Depot
Build.com

Product Details

Specifications

Details
Fuel Type Liquid Propane (LP)
Fuel Type Natural Gas (NG)

7. Rheem Performance 18 KW Self-Modulating 3.5 GPM Electric Tankless Water Heater

Rheem Performance 18 KW Self-Modulating 3.5 GPM Electric Tankless Water Heater

  • 18kw

Check Latest Price

Sold By Price
Amazon.com – Seller
eBay
Home Depot
BUYA.COM – Buya – Mid Valley Pawn

Product Details

Specifications

Details
Required Volt Connection 240 volt
Application Type Residential
Indoor/Outdoor Indoor
Fuel Type Electric
Number of Showers 1-2

Reviews From Real Customers

Berto
actionmaytag

8. Rinnai RU199iN 199,000 BTU Indoor Natural GAS Tankless Water Heater

Rinnai RU199iN 199,000 BTU Indoor Natural GAS Tankless Water Heater

  • 150 PSI Temperature 98
  • 140 F Natural Gas Pressure 3.5
  • 10.5 WC Voltage 120V / 60hz / 4A Maximum Flow Rate 0.26 GPM Gas Input 15,000

Check Latest Price

Sold By Price
Amazon.com – Seller
Home Depot
Lowe’s
Big Frog Supply

Product Details

Specifications

Details
Fuel Type Liquid Propane (LP)
Fuel Type Natural Gas (NG)

Reviews From Real Customers

MJahn
motobojo4004
elcapitansam1208

9. Stiebel Eltron Tempra 36 Plus Whole House Electric Tankless Water Heater

Stiebel Eltron Tempra 36 Plus Whole House Electric Tankless Water Heater

  • 36 Plus Tankless

Check Latest Price

Sold By Price
Amazon.com
Home Depot
TanklessKing
Wholesale Home

Product Details

Specifications

Details
Temperature (Minimum) 68° F
Temperature (Maximum) 140° F
Vent Type Vent Free
Amperage 150A
Voltage 240V

Reviews From Real Customers

ChristianMC
Sklewis
Brian Lackie

10. Rinnai CU199iN 199,000 BTU Commercial Indoor Natural GAS Tankless Water Heater

Rinnai CU199iN 199,000 BTU Commercial Indoor Natural GAS Tankless Water Heater

  • 84 W

Check Latest Price

Sold By Price
Amazon.com
eBay
Home Depot
Lowe’s

Product Details

Specifications

Details
Fuel Type Liquid Propane (LP)
Fuel Type Natural Gas (NG)

Reviews From Real Customers

HappyInnkeeper6693
Butterfly7926
Manu0356

11. Titan Electric Tankless Water Heater N-160

Titan Electric Tankless Water Heater N-160

  • N-160

Check Latest Price

Sold By Price
Amazon.com – Seller
Home Depot
Tank The Tank
The BuildClub

Product Details

Specifications

Details
Energy Star Certified Yes
Product Type Tankless Water Heater
Width 7 in.
Power Source Electric
Amps 66 amps

Reviews From Real Customers

FixitForTheKids
guidera48
hesh-3091

12. Rheem Performance Plus 7.0 GPM Natural GAS Outdoor Tankless Water Heater 691466

Rheem Performance Plus 7.0 GPM Natural GAS Outdoor Tankless Water Heater 691466

  • Outdoor

Check Latest Price

Sold By Price
Amazon
eBay
Home Depot

Product Details

Specifications

Details
Gas Type Natural Gas
Number of Showers 1-2
Application Type Residential
Indoor/Outdoor Outdoor
Efficiency Level High

Reviews From Real Customers

rheem.com
ronald4182
syrusmoto

13. Titan 18 Tankless Electric Tankless Water Heater

Titan 18 Tankless Electric Tankless Water Heater

  • 18 W

Check Latest Price

Sold By Price
Amazon
eBay
Walmart – J & J AC SUPPLY INC
Home Depot

Product Details

Specifications

Details
Amps 75 amps
Brand Name Titan
Depth 4 -1/4 in.
Maximum Pressure 150 psi
Watts 18 W

Reviews From Real Customers

vwstuff4you
metalpayed

14. Rheem Retex-13 KW Self-Modulating 2.54 GPM Tankless Electric Water Heater

Rheem Retex-13 KW Self-Modulating 2.54 GPM Tankless Electric Water Heater

  • Energy and cost savings: heats water only when it is needed for savings of up to 50% on water heating costs when used in a point-of-use application
  • Space savings: small, compact design fits perfectly in tight places like under cabinets and sinks
  • Easy to maintain: durable, easy-to-replace heating elements

Check Latest Price

Sold By Price
Amazon
eBay
Home Depot
BUYA.COM – Buya – Mid Valley Pawn

Product Details

Specifications

Details
Required Volt Connection 240 volt
Application Type Residential
Indoor/Outdoor Indoor
Fuel Type Electric
Number of Showers 1-2

15. Rheem Performance 27 KW Self-Modulating 5.3 GPM Electric Tankless Water Heater

Rheem Performance 27 KW Self-Modulating 5.3 GPM Electric Tankless Water Heater

  • Space savings: small, compact design fits perfectly in tight places like under cabinets and sinks
  • Great investment and value: energy cost savings
  • Easy to maintain: durable, easy-to-replace heating elements
  • A reliable hot water solution from Rheem, the global leader in water heating

Check Latest Price

Sold By Price
Amazon
eBay
Home Depot

Product Details

Specifications

Details
Required Volt Connection 240 volt
Application Type Residential
Indoor/Outdoor Indoor
Fuel Type Electric
Number of Showers 1-2

16. Rheem RTG-70XLP-1 Outdoor Propane Tankless Water Heater

Rheem RTG-70XLP-1 Outdoor Propane Tankless Water Heater

  • Provides continuous hot water and increased energy savings in a compact space saving design
  • Great for homes with 1 to 2 bathrooms
  • Environmentally friendly ultra-low NOx burner meets California air quality management district requirements
  • Hot start programming helps to minimize fluctuation in water temperature during periods of frequent on/off operation
  • Includes an electronic control with digital display and digital remote control

Product Details

Specifications

Details
Fuel Type Liquid Propane
Water Connection 3/4″
Voltage 120V
Amperage 2A
Activation GPM 0.4

17. Rheem Performance 24 KW Self-Modulating 4.6 GPM Electric Tankless Water Heater

Rheem Performance 24 KW Self-Modulating 4.6 GPM Electric Tankless Water Heater

  • up to 6 GPMWater-Saver Shower Head
  • 1.5 GPMStandard Shower Head
  • 2.0 GPMStandard Hand Sink
  • 0.5 GPMKitchen Sink
  • 1 to 2 GPMBath Tub

Check Latest Price

Sold By Price
Amazon
eBay – homedealss
Home Depot

Product Details

Specifications

Details
Amperage (amps) 100 A
Application Type Residential
Electricity Phase Single Phase
Finish Family Gray
Flow Rate @ 35°F Rise (gallons/min) 4.68 gal (US)/min

18. Black+decker 36 KW 6.2 GPM Residential Electric Tankless Water Heater, Ideal for 4 Bedroom Home, Up to 8 Simultaneous Applications

Black+decker 36 KW 6.2 GPM Residential Electric Tankless Water Heater, Ideal for 4 Bedroom Home, Up to 8 Simultaneous Applications

Check Latest Price

Sold By Price
Amazon
eBay – luckyluciano711
Home Depot

Product Details

Specifications

Details
Required Volt Connection 240 volt
Application Type Residential
Indoor/Outdoor Indoor
Efficiency Level Super High
Fuel Type Electric

19. Rheem Performance Platinum 9.0 GPM Natural GAS High Efficiency Outdoor Tankless Water Heater

Rheem Performance Platinum 9.0 GPM Natural GAS High Efficiency Outdoor Tankless Water Heater

Check Latest Price

Sold By Price
Amazon
eBay – homeplus101
Home Depot

Product Details

Specifications

Details
Gas Type Natural Gas
Number of Showers 2-4
Application Type Residential
Indoor/Outdoor Outdoor
Efficiency Level Super High

Reviews From Real Customers

Rickpk
Paul D
wattsmann

20. Rheem Tankless Water Heater Performance Platinum 9.5 GPM Natural GAS Indoor

Rheem Tankless Water Heater Performance Platinum 9.5 GPM Natural GAS Indoor

Check Latest Price

Sold By Price
Amazon
eBay
Home Depot
spsindustrial.com

Product Details

Specifications

Details
Indoor/Outdoor Indoor
Gas Type Natural Gas
Number of Showers 2-4
Application Type Residential
Efficiency Level Super High

Reviews From Real Customers

coverall1000
dw83415
ivtre_t_gjmvsy5s

Conclusion

A tankless water heater is a great option for a large home. It will provide an endless supply of hot water and is much more energy efficient than a traditional water heater.

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