10 Best Outdoor Tankless Propane Gas Hot Water Heater Portable in The UK

Last updated on 24/06/2025

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CAMPLUX Portable Gas Water Heater with Pump, Nano 3 Pro Gas Shower 3 L/min, Instant LPG Hot Water Heater for Outdoor Shower, Camping, Hiking

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Why We Love It

Instant hot water in seconds.
Intelligent display for easy monitoring.
Compact design for outdoor use.

Main Highlights

3 L/min Instant Hot Water: Instantly ignites within 5 seconds and delivers a continuous and stable 3 litres of hot water output per minute
Intelligent LED Display: Show the status of the gas shower, like real-time water temperature of inlet and outlet, power level, error codes etc. Water temperature ranges from 28-50°C(△t=22K)
2 Flexible Operation Modes: Nano 3 Pro gas shower can either run on battery mode with 4000 mAh rechargeable batteries or direct power mode via the 12V DC cigarette lighter in your car
Compact & Portable Design: This gas water heater weighs only 6.21 KG with 2 durable handles. It is lightweight and easy to store, making it an ideal companion for camping, hiking, and other outdoor adventures
2 Types of Gas Supply: This hot water heater runs both on propane and butane cylinders. Please just use a 37mbar gas regulator (provided) for propane gas and 28-30mbar regulator for butane gas
What You Get: 1 x battery-powered camping water heater, 1 x 12V submersion water pump, 1 x 12V DC cigarette lighter cable 500 cm, 1 x gas regulator & gas inlet connector, 1 x shower head & 250 cm hose, 1 x shower bracket
Warm Tips: Make sure the charging power is 12V before you charge. The provided gas regulator is only suit for propane gas bottle with 27mm clip-on connector

CAMPLUX AY132P43 5L Portable Gas Water Heater with 4.3L Water Pump 12V,Tankless LP Gas Boiler with Folding Handle,Use for Outdoor Camping Shower RV Trip Washing Horse

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Why We Love It

Endless hot water supply.
Enhanced safety features.
Energy and cost-efficient.

Main Highlights

ENJOY TANKLESS & ENDLESS HOT WATER - Delivering 5 litres of endless hot water per minute when the shower head is on. You can enjoy hot shower, give a comfortable hot spa for your horses or pets with this portable outdoor shower
MULTIPLE PROTECTIONS - Flame failure protection, overheat protection, oxygen depletion safety shutoff protection to ensure your family safety. Drain plug is applied to drain the residual water from the appliance to avoid being frozen or broken
SAVING ENERGY & MONEY- Camplux AY132P43 employs energy saving technology, higher temperature raise at same cost of gas. Unlike the storage water heater, this tankless water heater only heats the water in amount for you need. No need to be preheated, thus eliminating the waiting time for hot water
FOLDABLE HANDLE FOR EASY CARRY- This gas shower only weighs 4.54kg, with a handle, which let you easily carry it anywhere. The 37mbar gas regulator is compatible with any propane gas bottle with 27mm clip-on connection
EASY TO OPERATE - You can simply adjust the water and gas flow to achieve your desired temperature. Temperature ranges from 10~65°C. Configured with a 4.3L water pump to boost the water pressure, it is great for campersite, RV, stables with low water pressure

Lfhelper Gas Water Heater 18L Instant Outdoor LPG Water Heater Portable Tankless Propane Gas Heater for Camping Showers Pet Washing Sliver

Why We Love It

Endless and immediate hot water.
Highly durable and efficient.
Saves space and versatile.

Main Highlights

❤ Endless Hot Water - Say goodbye to waiting for water to heat up and embrace the luxury of instant and continuous hot water. With an impressive flow rate of 18 litres per minute, you can enjoy a seamless supply of hot water wherever you are, without the need for water storage. Experience the convenience and comfort of endless hot water at your fingertips.
❤ High Performance and Durability - Boasting a powerful 36KW power output, this propane tankless water heater delivers exceptional performance and rapid heating. The use of high-temperature resistant copper water fixtures ensures long-lasting durability, ensuring you have a reliable source of hot water for years to come.
❤ Energy Efficiency and Customization - Our 18L lpg water heater offers both summer and winter modes, allowing you to optimize energy consumption. The gas control knob can be adjusted to increase the gas supply, while the water adjustment knob enables customization for desired hot water levels. Enjoy up to 40% energy savings during the summer months by intelligently managing the fire rows.
❤ Convenient Wall-Mounted Design - Our tankless water heater features a portable design that can be easily mounted on a wall, tree, or any suitable surface. It's perfect for camping trips, beach outings, or any outdoor activity where hot water is desired. Save valuable space while enjoying the convenience of hot water on the go.
❤ Versatile Applications - This gas water heater outdoor is designed to meet a range of needs. From refreshing showers and pet washing to outdoor cleaning tasks and even horse showers, it caters to your diverse hot water requirements. It's especially handy in areas with low water pressure, providing an instant and consistent supply of hot water.

CAMPLUX AY132B 5L Portable Gas Water Heater with Folding Handle, Tankless LP Gas Boiler, Use for Outdoor Shower Camping RV Trip Horse Bathing

15% OffFree Shipping

Why We Love It

Endless hot water supply.
Multiple safety protection features.
Energy and cost efficient.

Main Highlights

ENJOY TANKLESS & ENDLESS HOT WATER - Delivering 5 litres of endless hot water per minute within 8 seconds when the shower head is on. You can enjoy hot shower, give a comfortable hot spa for your horses, pets with this portable outdoor shower
MULTIPLE PROTECTION - Flame failure protection, overheat protection, oxygen depletion safety shutoff protection to ensure your family safety. Drain plug is applied to drain the residual water from the appliance to avoid being frozen or broken
SAVING ENERGY & MONEY- Camplux AY132 employs energy saving technology, higher temperature raise at same cost of gas. Unlike the storage water heater, this tankless water heater only heats the water in amount for you need. No need to be preheated, thus eliminating the waiting time for hot water
FOLDABLE HANDLE FOR EASY CARRY- This gas shower only weighs 4.54kg, with a handle, which let you easily carry it anywhere. It comes with most of the necessary accessories for quick installation. The 37mbar CE gas regulator is compatible with any propane gas bottle with 27mm clip-on connection
EASY TO OPERATE - You can simply adjust the water and gas flow to achieve your desired temperature. Temperature ranges from 10~65°C. With 0.25 bar startup, it is great for campersite, RV, stables with low water pressure

Gas Water Heater 18L Outdoor Instant LPG Water Heater, Tankless Propane with Digital Display and Multi-Protection for Camping, Trips, RV, Pet Washing

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Why We Love It

Instant hot water on demand.
Energy-efficient and portable design.
Ideal for outdoor adventures.

Main Highlights

【Instant Water Heater】- To provide a safer bathing environment, our tankless water heater provides multiple protections such as flame failure device, anti-freezing protection, over heating protection. With an output of up to 18L of hot water per minute, you can enjoy seamless hot water supply anytime, anywhere, without the need for water storage. Maximum temperature can be raised to 167 °F, propane applicable only (LPG).
【Efficient & Energey Saving】- The Propane Water Heater exchanger and main burner are desinged with advanced combustion technology to decrease gas consumption and burning noise. The gas water heater offers both summer and winter modes, allowing you to optimise your energy consumption, you can manually adjust the controls as required.
【Portable Design】- Portable Water Heater size and lightweight make the water heater easy to carry that allows them to be easily mounted on a wall, tree, in your RV or any suitable surface. The water heater can provide you with a comfortable bathing experience anytime, anywhere, and it's also a great choice for bathing pets.
【Easy Operation】- You can easily control the gas intake and adjust the water temperature and volume with three knobs on the panel of the instant water heater, and the digital display of the temperature allows you to achieve easy temperature adjustment. There are three interface ports under propane water heater. The left one is the Air inlet. The middle one is the shower port,and The right one is the water inlet.
【Versatile Applications】- This camping gas heater, perfect for outdoor shower,which brings an amazing hot shower for you when you are Camping, Hiking, Fishing, Beaching, Portable Hot Water Sink, RV/SUV/MPV, etc. Besides, you can also wash your pets with this tankless water heater, always check gas leakage before operation.

TABODD 36KW 18L LPG Propane Gas Water Heater, 4.8 GPM Portable Tankless Instant Hot Water Heater Boiler Burner with Shower Head Kit for Small Homes RV's Sailboats Cabins Camping, Silver

Why We Love It

High performance and durable.
Enjoy instant hot water.
Energy-saving summer mode.

Main Highlights

High Performance - Power: 36KW; Hot Water Output: 18L/min; Gas Supply: LPG(Liquid Propane Gas); High-temperature resistant copper water devices, ensure long time use & durability of this tankless water heater propane.
On-demand Endless Hot Water - Maximum power output 18L / min, get instant endless hot water easily wherever you are. No need to preheat before using RV camping water heater. As soon as you turn on the tap, the water flow with your desired temperature. Applicable water pressure is from 0.02-0.8 MPa pressure, low water pressure can make it work and enjoy instant hot water.
Summer/ Winter Mode - This gas instant water heater can also provide summer/winter mode to select for energy saving. Gas control knob: clockwise to increase gas supply. Water control knob: clockwise to get more hot water. Summer & winter knob: designed to save 40% energy(shut off 1/4 fire rows in summer).
Wall-Mounted Design - Portable design for carry on easily. It can bring a amazing hot shower for you when you are camping , to the beach, etc. Also you can wash your pets with this portable hot water heater in your garden.
Applications - This 18L tankless water heater is the best-selling water heater on the market today! Customers around the world use similar devices to heat water safely and reliably. The portable, liquid propane gas-fired instant water heater generates 18 liters of hot water per minute. The user-friendly water heater is designed for quick and easy set-up.

ThermoMate AZ132B 5L Instant Gas Water Heater, Portable Propane Water Heater, Use for Outdoor Showers, Horses, Camping, Motorhome

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Why We Love It

Instant hot water delivery.
Significant energy saving.
Compact and easy use.

Main Highlights

【LOW WATER PRESSURE STARTUP】- Thermomate gas water heater instantly delivers 5L/min of hot water at 25°C temperature rising, with 0.25 bar low water pressure startup.
【ENERGY SAVING】Thermomate portable propane water heater is equipped with 3-ROW harmonica style burner, which can decrease gas consumption and will save 11.5% energy. The tankless water heater heats the required amount of water directly from the source, giving you an endless supply of hot water when you need it.
【MULTIPLE PROTECTIONS】- Anti-freezing apparatus drains the residual water to avoid damage of freezing under cold areas to the gas boiler or in case of a long time no use. Featuring overheating and flameout protection, the gas supply will shut off automatically under unexpectedly flame out or high water temperature over 80°C.
[COMPACT DESIGN] - Size: 34 x 29.5 x 12CM, Weight: 4.5KG. With compact and lightweight design, the lpg water boiler is suitable for outdoors activities. It is a great partner for an amazing hot shower when you are camping, hiking, fishing, beaching, etc. Besides, you can also wash your pets with this 5L gas shower , or provide hot water for the swimming pool.
【EASY TO INSTALL & USE】- Thermomate tankless water heater provides everything you need, including gas regulator and hose, shower head and hose,etc. With these provided installation kits, you can install it quickly and use it easily.

iLAN 6 L/Min Tankless Propane/LPG Gas Water Heater with Rain Cap, Multi-Purpose Instant Outdoor Shower for Camping, Pet Washing, Houseboats, and RV Trips

Why We Love It

On-demand hot water delivery.
Energy-efficient and eco-friendly.
Advanced safety features included.

Main Highlights

➤ On-Demand Hot Water, Energy-Efficient: Delivers 6 litres per minute of instant hot water, heating only when needed to reduce energy consumption. Perfect for campsites, RVs, stables, and off-grid locations.
➤ Requires just 0.25 bar startup pressure and is powered by two 'D'-size batteries (not included).
➤ UKCA and CE Certified for Safety: Complies with CE GAR standards for the EU and UK, offering multiple safety features, including flame failure protection, overheating prevention, and a 20-minute automatic shutoff. Designed to ensure maximum safety for your family.
➤ Weatherproof Rain Cap: Protects the heater by preventing water, leaves, and insects from entering, helping to extend the unit's lifespan.
➤ Equipped with a drain plug to remove residual water, protecting the unit from freeze damage.
➤ Lightweight and compact design with included accessories for quick and easy installation. Highly portable and convenient to carry anywhere.
➤ Easy Operation: Effortlessly adjust heat using the water and gas knobs. The LED display shows the precise water temperature, allowing you to set the perfect shower temperature for both pets and family.
➤ Energy Class: A+

GASLAND Outdoor Tankless Gas Water Heater, Campervan Shower BE158 6L Hot Shower System, Portable Instant Propane Water Heater for Camping Shower Road Trip Hot Tap Lpg Shower, White

Why We Love It

Endless hot water supply.
Easy to install anywhere.
Safety features prevent gas leaks.

Main Highlights

➤Instant Gas Water Heater - If you need, it is capable of delivering 6L/min of endless hot water at the flick of a switch anywhere.
➤Easy Installations - Dimensions 440x300x138mm design,can be installed in outdoor/outdoor stables/camping/caravanning and other scenes to use.
➤CE Certified - Complies with CE certified GAR standard throughout EU market.With overheating protection:Auto cut-off protection will shut the gas supply off immediately in the event of flameout to reduce the risk of gas leakage.
➤Contents & Tips - The tankless water heater is splash-proof & can withstand a light drizzle. Please avoid prolonged exposure to rain or water, and utilize & storage your water heater in a dry environment. Please remove the drain plug and store it in a warm, dry location in winter.
➤Specifications & Warranty - Water Heater is supplied from a standard 5-15kg LPG cylinder (not included).Ignition is automatic and powered by 2 “D” cell batteries(not included). Heat is easy to adjust via water knob and gas knob.2 years protection service of product quality issue and 24hours customer service.

GASLAND AS132 Gas Water Heater, 5L/Min Tankless Propane Gas Boiler 30/37mbar, Instant LPG Boiler with Handle for RV Camping Shower Washing Horse

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Why We Love It

Instant unlimited hot water supply.
Easy installation and versatile use.
Exceptional overheating protection feature.

Main Highlights

Instant Gas Water Heater - If you need, it is capable of delivering 5L/min of endless hot water at the flick of a switch anywhere.
Easy Installations - Dimensions 370x300x130mm design,can be installed in outdoor/outdoor stables/camping/caravanning and other scenes to use.
Overheating Protection:Auto cut-off protection will shut the gas supply off immediately in the event of flameout to reduce the risk of gas leakage.
Contents & Tips - The tankless water heater is splash-proof & can withstand a light drizzle. Please avoid prolonged exposure to rain or water, and utilize & storage your water heater in a dry environment. Please remove the drain plug and store it in a warm, dry location in winter.
Specifications & Warranty - Water Heater is supplied from a standard 5-15kg LPG cylinder (not included).Ignition is automatic and powered by 2 “D” cell batteries(not included). Heat is easy to adjust via water knob and gas knob.2 years protection service of product quality issue and 24hours customer service.

8.9

Excellent

We scanned 1746 products

We reviewed these offers relevant to the Outdoor Tankless Propane Gas Hot Water Heater Portable within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like CAMPLUX, Lfhelper, VELPAX, TABODD, thermomate, iLAN, GASLAND, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Outdoor Tankless Propane Gas Hot Water Heater Portable in the market, we considered we took a deep dive into 8731 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is CAMPLUX Portable Gas Water Heater with Pump, Nano 3 Pro Gas Shower 3 L/min, Instant LPG Hot Water Heater for Outdoor Shower, Camping, Hiking. We love many things about this product by CAMPLUX. What sets it apart from the competition is Instant hot water in seconds. , Intelligent display for easy monitoring. , Compact design for outdoor use. .
The best value product for most shoppers and where user satisfaction is continuously the highest is CAMPLUX AY132P43 5L Portable Gas Water Heater with 4.3L Water Pump 12V,Tankless LP Gas Boiler with Folding Handle,Use for Outdoor Camping Shower RV Trip Washing Horse by CAMPLUX based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Outdoor Tankless Propane Gas Hot Water Heater Portable and the best cost-to-value ratio is CAMPLUX AY132B 5L Portable Gas Water Heater with Folding Handle, Tankless LP Gas Boiler, Use for Outdoor Shower Camping RV Trip Horse Bathingat CAMPLUX with a 15% discount.
Our list of the best Outdoor Tankless Propane Gas Hot Water Heater Portable is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Outdoor Tankless Propane Gas Hot Water Heater Portable in The UK

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We concluded that: