Best Portable Hot Water Heaters Updated May 2025
Advertiser disclosure About our rankings

Join the millions that have trusted BuyersGuide.org to help them make smarter buying decisions. Let our independent expert reviews and data-driven shopping recommendations help you find the one that's right for you.

Best Portable Hot Water Heaters
2025 Buyer's GuideUpdated May 2025
Advertiser disclosure About our rankings
Sort by:
Best Overall

9.9

1

9.9

CAMPLUX Tankless Water Heater Outdoor, 1.32 GPM Portable Propane Camping Water Heater, 5L, AY132, White
Works great
Water temperature
Ease of setup
Value for money
Shower size
Read Full Review
Picked by 177 people this month!
Picked by 177 people this month!
Picked by 177 people this month!
Best Overall

9.9

1
CAMPLUX Tankless Water Heater Outdoor, 1.32 GPM Portable Propane Camping Water Heater, 5L, AY132, White
Works great
Water temperature
Ease of setup
Value for money
Shower size
Picked by 177 people this month!
Read Full Review

9.6

2

9.6

Tankless Water Heater Electric 3000W Instant Water Heater Under Sink 110V, Portable, On Demand Hot, Small, with Digital Display...
Heat transfer
Ease of installation
Save 11%
Save 11%

9.6

2
Tankless Water Heater Electric 3000W Instant Water Heater Under Sink 110V, Portable, On Demand Hot, Small, with Digital Display...
Heat transfer
Ease of installation
Save 11%

9.4

3

9.4

HBOKIT-Tankless water heater electric 110v tankless hot water instant portable hot water heater under sink hot water heaters fo...
Water heating capacity
Compactness
Functionality
Save 50% + 30% Coupon
Save 50% + 30% Coupon

9.4

3
HBOKIT-Tankless water heater electric 110v tankless hot water instant portable hot water heater under sink hot water heaters fo...
Water heating capacity
Compactness
Functionality
Save 50% + 30% Coupon

9.3

4

9.3

Portable Water Heater Propane Tankless - 6L 1.58GPM RV on demand Hot Gas Outdoor Digital Display Water Heater for Camping,Boat,...
Functionality
Ease of setup
Camping use
Save 15%
Save 15%

9.3

4
Portable Water Heater Propane Tankless - 6L 1.58GPM RV on demand Hot Gas Outdoor Digital Display Water Heater for Camping,Boat,...
Functionality
Ease of setup
Camping use
Save 15%

9.2

5

9.2

GASLAND BE158 Propane Tankless Water Heater 6L, Outdoor Portable Hot Water Heater, Overheating Protection, Easy to Install, Use...
Functionality
Ease of installation
Outdoor shower
Temperature control

9.2

5
GASLAND BE158 Propane Tankless Water Heater 6L, Outdoor Portable Hot Water Heater, Overheating Protection, Easy to Install, Use...
Functionality
Ease of installation
Outdoor shower
Temperature control

9.0

6

9.0

Kohree Tankless Water Heater Propane, 6L 1.58 GPM Portable Tankless Water Heater with Handle, On Demand Instant Hot Water Heate...
Functionality
Heat level
Ease of setup
Value for money
Shower capacity

9.0

6
Kohree Tankless Water Heater Propane, 6L 1.58 GPM Portable Tankless Water Heater with Handle, On Demand Instant Hot Water Heate...
Functionality
Heat level
Ease of setup
Value for money
Shower capacity
Premium Pick

8.9

7

8.9

BOSCH Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mo...
Heat level
Works great
Ease of installation
Size
Value for money
Installation
Save 15%
Save 15%
Premium Pick

8.9

7
BOSCH Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mo...
Heat level
Works great
Ease of installation
Size
Value for money
Installation
Save 15%

8.8

8

8.8

Portable Camplux Propane 1.58 GPM Tankless Gas, On Demand Water Heater, White
Water temperature
Ease of installation
Shower capacity
Value for money

8.8

8
Portable Camplux Propane 1.58 GPM Tankless Gas, On Demand Water Heater, White
Water temperature
Ease of installation
Shower capacity
Value for money
Best Value
Popular

8.6

9

8.6

Immersion Water Heater,with 304 Stainless Steel Cover Intelligent Temperature Control and Digital LCD Thermometer Portable Buck...
Value for money
Ease of use
Speed
Save 27%
Save 27%
Best Value
Popular

8.6

9
Immersion Water Heater,with 304 Stainless Steel Cover Intelligent Temperature Control and Digital LCD Thermometer Portable Buck...
Value for money
Ease of use
Speed
Save 27%

8.3

10

8.3

Tankless Water Heater 4.21GPM 16L Outdoor Portable GasHot Water Heater Instant Propane Water Heater with Digital Display Multi-...
Water temperature
Outdoor shower
Save 15%
Save 15%

8.3

10
Tankless Water Heater 4.21GPM 16L Outdoor Portable GasHot Water Heater Instant Propane Water Heater with Digital Display Multi-...
Water temperature
Outdoor shower
Save 15%

Our Top Choice

Best Overall

9.9

1

9.9

CAMPLUX Tankless Water Heater Outdoor, 1.32 GPM Portable Propane Camping Water Heater, 5L, AY132, White
Works great
Water temperature
Ease of setup
Value for money
Shower size
Read Full Review
Picked by 177 people this month!
Picked by 177 people this month!
Picked by 177 people this month!
Best Overall

9.9

1
CAMPLUX Tankless Water Heater Outdoor, 1.32 GPM Portable Propane Camping Water Heater, 5L, AY132, White
Works great
Water temperature
Ease of setup
Value for money
Shower size
Picked by 177 people this month!
Read Full Review
Related Categories
Camping Water HeaterCamping Hot Water HeaterPortable Hot Water ShowerPropane Instant Water HeaterTankless Water Heater (All)Outdoor Tankless Hot Water Heater
How We Rank
Expert Analysis
Our team of experts highlights useful information so you can easily compare products to find the one that's right for you.

Award-Winning Tech
Our technology analyzes thousands of purchase trends to bring you the top product recommendations.

Why Trust Our Reviews?
1,000,000+ shoppers use Buyer's Guide every week to find the best products and services online.

Learn more about our rankings.

Reliable, Safe & Secure
Helping millions of users make smarter purchases online.
Related Categories
Camping Water HeaterCamping Hot Water HeaterPortable Hot Water ShowerPropane Instant Water HeaterTankless Water Heater (All)Outdoor Tankless Hot Water Heater
Related Categories
Camping Water HeaterCamping Hot Water HeaterPortable Hot Water ShowerPropane Instant Water HeaterTankless Water Heater (All)Outdoor Tankless Hot Water Heater