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23 Best Propane Tankless Water Heater For High Altitude (2022 Updated)

Propane tankless water heaters are designed to operate at high altitudes. They are able to maintain a constant water temperature, even when the water pressure is low.

23 Best Propane Tankless Water Heater For High Altitude

1. Rinnai RU199iP 199,000 BTU Indoor Propane Tankless Water Heater4.54384.5 out of 5 stars. 438 product reviews.Propane · Energy Star

Rinnai RU199iP 199,000 BTU Indoor Propane Tankless Water Heater4.54384.5 out of 5 stars. 438 product reviews.Propane · Energy Star

  • Isolation Valves Set
  • Pressure Release Valve & adapter (can rotate 360 degrees to accommodate varied installations)
  • Installation & Operation Manual

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Amazon.com – Seller
Home Depot
Lowe’s
SupplyHouse.com

Product Details

Specifications

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

Reviews From Real Customers

MJahn
motobojo4004
elcapitansam1208

2. Takagi T-H3S-OS-P Outdoor Propane Tankless Water Heater

Takagi T-H3S-OS-P Outdoor Propane Tankless Water Heater

  • Endless hot water, On-demand usage, Compact, Space saving, Energy conservation
  • Computerized safety features, No pilot light to have to worry about
  • Satisfies the 2012 SCAQMD Rule 1146.2 for Ultra-Low NOx Emissions

Product Details

Specifications

Details
The manufacturer model number(s) Takagi T-H3S-OS-P
Heat Exchanger Material Copper/Stainless
Fuel Type Liquid Propane
Combustion Type Condensing
Vent Type Outdoor (No Venting)

Reviews From Real Customers

Steve M

3. Marey Power Mini Portable Gas Tankless Water Heater

Marey Power Mini Portable Gas Tankless Water Heater

  • Energy conserving design with adjustable gas and water controls.
  • Automatic IC ignition system.
  • Multiple safety sensors including overheat sensor and anti-dry heating device.
  • Compact, lightweight design for easy portability.

Product Details

Specifications

Details
Assembled Product Weight 15 lbs
Assembled Product Dimensions (L x W x H) 11.40 x 4.70 x 17.00 Inches

Reviews From Real Customers

denbr-7927
bandklawsons
johnowhite

4. Camplux 5L 1.32 GPM Outdoor Portable Propane Tankless Water Heater

Camplux 5L 1.32 GPM Outdoor Portable Propane Tankless Water Heater

  • A great for camping, to the beach or family vacations mountain cabins horse stables etc
  • With Oxygen Depletion Sensor Protection, it can be also installed indoors where is well ventilated
  • Turn the ignition on with 2 D cell batteries whenever electricity is not needed
  • The system also works great on modified water systems with a 12 volt water pump

Product Details

Specifications

Details
Size AY132

Reviews From Real Customers

burnhad
bigcol70uk

5. Rheem RTG-95XLP 199,900-BTU Outdoor Liquid Propane Tankless Water Heater

Rheem RTG-95XLP 199,900-BTU Outdoor Liquid Propane Tankless Water Heater

  • 9.5 gal/min. at 35-Degree Rise
  • UMC-117 remote control and 10-Feet of thermostat wire is included
  • Low Nox Version

Product Details

Reviews From Real Customers

Joan and Tom E
Carl S

6. 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

7. Rinnai Propane Tankless Water Heater Outdoor RL94eP

Rinnai Propane Tankless Water Heater Outdoor RL94eP

  • Temperature Controlled, Continuous Flow, Gas Hot Water System.
  • Certified for installation in Manufactued (Mobile) homes.
  • Forced combustion / Direct vent.
  • Energy Star Qualified.

Product Details

Specifications

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

Reviews From Real Customers

les22358
eri21552
brobey8920

8. Rinnai RUS65EP 6.5 GPM Outdoor Propane Tankless Water Heater

Rinnai RUS65EP 6.5 GPM Outdoor Propane 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 6.5 GPM hot water flow rate for a powerful, constant stream
  • Multiple venting options available including PVC/CPVC using the Ubbink Concentric to Twin Pipe adaptor allow for an easy installation

Product Details

Specifications

Details
Weight 69.3 oz

Reviews From Real Customers

Happycustomer6090
tka42857
nas42800

9. Rinnai Ultra-Efficient RU98IP Indoor Tankless Water Heater – Liquid Propane

Rinnai Ultra-Efficient RU98IP Indoor Tankless Water Heater - Liquid Propane

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MyTanklessWaterHeaterStore

Product Details

Reviews From Real Customers

sag40241
mwe40171
dbc39903

10. Rheem Performance Plus 9.5 GPM Liquid Propane Outdoor Tankless Water Heater

Rheem Performance Plus 9.5 GPM Liquid Propane Outdoor Tankless Water Heater

Product Details

Specifications

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

Reviews From Real Customers

ronald4182
syrusmoto
JeffInstaller

11. Rinnai V53DeP Outdoor Whole House Liquid Propane Tankless Water Heater 5.3

Rinnai V53DeP Outdoor Whole House Liquid Propane Tankless Water Heater 5.3

  • Compact design: saves space
  • Never run out of hot water
  • Simple to operate and easy to adjust
  • Up to twice the lifespan of most tanks

Product Details

Specifications

Details
Weight 37.9 oz

Reviews From Real Customers

Ricky
Steve C
Shockey

12. Rinnai RUS65EP 6.5 GPM Outdoor Propane Tankless Water Heater

Rinnai RUS65EP 6.5 GPM Outdoor Propane 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 6.5 GPM hot water flow rate for a powerful, constant stream
  • Multiple venting options available including PVC/CPVC using the Ubbink Concentric to Twin Pipe adaptor allow for an easy installation

Product Details

Specifications

Details
Weight 69.3 oz

Reviews From Real Customers

cle42684
Seattleguy3946

13. Eccotemp i12-LP Indoor Liquid Propane Tankless Water Heater

Eccotemp i12-LP Indoor Liquid Propane Tankless Water Heater

  • Tempered glass front panel
  • Child locking technology
  • LED temperature display
  • True 1/2″” NPT water fittings

Product Details

Specifications

Details
Capacity 4 GPM
Battery Required No
Product Weight 33 lb
Dimensions L x W x H (in.) 36 x 17 x 10
Typical Application Water heater

Reviews From Real Customers

FoodGuy269
Ce P.
brkla0

14. Rinnai V53DeP Outdoor Whole House Liquid Propane Tankless Water Heater 5.3

Rinnai V53DeP Outdoor Whole House Liquid Propane Tankless Water Heater 5.3

  • Compact design: saves space
  • Never run out of hot water
  • Simple to operate and easy to adjust
  • Up to twice the lifespan of most tanks

Product Details

Specifications

Details
Weight 37.9 oz

Reviews From Real Customers

BagPiper0173

15. Eccotemp L5 Point-of-Use Outdoor Tankless Portable Water Heater with Flojet Pump …4.13544.1 out of 5 stars. 354 product reviews.Tankless · Propane

Eccotemp L5 Point-of-Use Outdoor Tankless Portable Water Heater with Flojet Pump ...4.13544.1 out of 5 stars. 354 product reviews.Tankless · Propane

  • CSA certified for use in the US and Canada This tankless water heater meets and exceeds all safety and efficiency requirements according to the DOE.
  • Features a safety shut-off that is activated when the unit runs longer than 20 minutes or is tilted more than 45 degrees in either direction.
  • Low pressure activation of 20 PSI and is easy to connect to any standard garden hose.
  • Rated at 15 Gallons per minute (GPM) of hot water output with an achievable temperature range of 50 – 140 degrees Fahrenheit.

Product Details

Specifications

Details
Fuel Type Liqiuid Propane

Reviews From Real Customers

ghislaiblange0
Dom07
La terreur

16. Takagi T-H3S-OS-P Outdoor Propane Tankless Water Heater

Takagi T-H3S-OS-P Outdoor Propane Tankless Water Heater

  • Endless hot water, On-demand usage, Compact, Space saving, Energy conservation
  • Computerized safety features, No pilot light to have to worry about
  • Satisfies the 2012 SCAQMD Rule 1146.2 for Ultra-Low NOx Emissions

Product Details

Specifications

Details
The manufacturer model number(s) Takagi T-H3S-OS-P
Heat Exchanger Material Copper/Stainless
Fuel Type Liquid Propane
Combustion Type Condensing
Vent Type Outdoor (No Venting)

17. Rheem Propane Condensing Tankless Water Heater – Built-in Manifold

Rheem Propane Condensing Tankless Water Heater - Built-in Manifold

Product Details

Specifications

Details
Generic Product Category Tankless Water Heater
Voltage 120V
Energy Source Propane
Energy Factor .96
Flow Rate @ 35 F Rise 9.5 GPM

18. Eccotemp L5 Tankless Water Heater and Outdoor Shower – 1.5 GPM

Eccotemp L5 Tankless Water Heater and Outdoor Shower - 1.5 GPM

  • L13 lbs.

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Walmart
Overtons.com

Product Details

Specifications

Details
Dimensions 18″ x 11.5″ x 5.25″
Unit Weight 14.75 lb
MFG Part No. L5

Reviews From Real Customers

Happy Knox Camper
Sammy L.
Surfer5920

19. Eccotemp i12-LP Indoor Liquid Propane Tankless Water Heater

Eccotemp i12-LP Indoor Liquid Propane Tankless Water Heater

  • Tempered glass front panel
  • Child locking technology
  • LED temperature display
  • True 1/2″” NPT water fittings

Product Details

Specifications

Details
Capacity 4 GPM
Battery Required No
Product Weight 33 lb
Dimensions L x W x H (in.) 36 x 17 x 10
Typical Application Water heater

20. Camplux AY132BN Portable Tankless Water Heater Propane Outdoor 1.32 GPM Black

Camplux AY132BN Portable Tankless Water Heater Propane Outdoor 1.32 GPM Black

  • Portable Design: The portable propane water heater with portable and handle, weights only 14lbs.
  • Low Water Pressure: The portable camping gas water heater start with 3.0 PSI low water pressure,it’s good for RV camping, outdoor trip, washing pets.
  • Safey Insurance: Camplux propane tankless water heater was CSA certified, 6-in-1 protections ensures you a comfortable outdoor shower.

Product Details

Specifications

Details
Capacity 1.32 Gallons
Power Source Battery Powered
Item Dimensions LxWxH 11.42 x 4.33 x 14.8 inches
Wattage 10.00
Voltage 3 Volts

Reviews From Real Customers

naturalinvestments
Kevinh143
jeepbogger

21. Takagi T-H3M-OS-P 120,000 BTU Outdoor Propane Tankless Water Heater

Takagi T-H3M-OS-P 120,000 BTU Outdoor Propane Tankless Water Heater

  • Inlet, outlet thermistors for constant temperature monitoring
  • Perfect for light residential and radiant heating applications
  • Manufactured in Japan

Product Details

Specifications

Details
The manufacturer model number(s) Takagi T-H3M-OS-LP
Heat Exchanger Material Copper/Stainless
Fuel Type Liquid Propane
Combustion Type Condensing
Vent Type Outdoor (No Venting)

Reviews From Real Customers

Adam D.
Dan M.
CK Maintenance & Repairs

Conclusion

A propane tankless water heater is an excellent choice for high altitude applications. They are very efficient and can provide a continuous supply of hot water.

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