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

Last updated on 26/08/2025

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CAMPLUX 5L Gas Water Heater with 4.3L Water Pump, Freestanding Tankless Water Heater, AY132Max Instant LPG Water Boiler with Carrying Bag, for Camping/Outdoor Showers

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Why We Love It

Adaptable to varied water pressure.
Bags easy transport to outdoors.
Effortless temperature control feature.

Main Highlights

5 L/M Hot Water: 5 Litres of hot water per minutes, so you can take shower as long as you want
4.3L/M Water Pump: Increases inlet water pressure through water pump in areas with low water pressure or when water is supplied from the water tank. Power cables and water hoses are ready for use with this pump
Freestanding Design: Equipped with independent stands, no worry about finding a place to hang the gas water heater
All in One Bag: You can put all stuff in the provided waterproof bag and take it outdoors. Just additionally take an LPG bottle, 2pcs D-cell batteries, 12V power source to use
Easy Control: Simply turning the gas and water control knobs to get your desired temperature. Temperature ranges from 10-75°C
Only Weights 5.54kg (heater and stand): The folding handle makes it easy to take gas water heater when you go outdoors
Butane or Propane Gas Convertible: 28-30mbar for butane gas and 37mbar for propane gas.Just use the correct gas regulator. Gas fitting nut: G1/2''
Outdoor Hot Water Solutions: You can enjoy hot shower on campsites, poolside, cabins and barns, and other off-grid areas

ThermoMate ZERO16 16L Gas Water Heater, Instant Outdoor Water Heater, Tankless Propane Gas Boiler, Use for Camping Showers, Horses Washing, RV Trip,Mobile Home Vacation

5% OffFree Shipping

Why We Love It

Instant and endless hot water.
Quick installation and user-friendly.
Multiple safety protections included.

Main Highlights

【INSTANT & ENDLESS HOT WATER】- With a 16L thermomate tankless water heater, you can instantly enjoy continuous hot shower on demand anytime and anywhere. The LPG boiler will be ignited at 0.25 bar low water pressure. Fully adjustable heat and water flow via control knob.
【EASY TO SET UP & USE】 - Thermomate ZERO16 comes with all necessary accessories for quick installation and ignited by 2-D batteries, which is great to campsite, RV, stables, shower shack, off grid, etc.. Featuring a visible LED display and a smart thermostat device, you can read the real-time temperature, adjust the temperature at your preferred degree and avoid scalding.
【MULTIPLE PROTECTION CONFIGURATIONS】- Flame failure protection will cut gas supply off immediately in the event of flameout to reduce the risk of gas leakage; Overheat protection at 85℃; High water pressure protection active when over 8 bar. Anti-freezing drain plug can discharge the residual water to avoid freezing in cold areas or in case of long time no use.
【ENERGY SAVING & ECO MODE】- Compact structure with 11.5% energy saving technology. The heat exchanger and main burner of the propane water heater shower are designed with advanced combustion technology to decrease gas consumption and burning noise. Eco mode optional, segmented combustion for different heat power demands.
【PLEASE NOTE】- Please verify that this ZERO16 is the right size for your hot water needs before purchasing and installing. It runs propane gas and is for outdoor use only. The gas inlet, water inlet, and water outlet connectors are G1/2'' standard thread. If you live in a low-pressure area, you will additionally need a 12V water pump.

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

20% OffFree Shipping

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 AY132 Tankless Propane Gas Water Heater White 5L

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Why We Love It

Adjustable heat and water flow.
Ideal for remote camping spots.
Built-in drain plug feature.

Main Highlights

Start water pressure – the Camplux AY132 water heater delivers 5 L/min endless hot water as soon as the tap is switched on. With 0.17 bar startup, it is ideal for motorhomes, motorhomes with low water pressure. You can enjoy an outdoor shower, bathe your horses, wash your pets with this outdoor shower.
Save energy and money: the 5L gas shower uses energy-saving technology. Thanks to the energy-saving technology, higher temperatures are achieved at the same gas costs. Unlike the hot water tank, this continuous water heater only heats the water you need.
Multiple protection: protection against flame failure, overheating protection and protection against oxygen depletion to ensure the safety of your family. The drain plug is used to drain the entire water content if it is not used for so long or the outside temperature is close or below 0 °C, extending the service life.
Easy installation and use: the portable water heater is equipped with a folding handle that makes it easier to carry on camping tours in remote areas. You can hang it directly on the handle or mount it to trailers, motorhomes, caravans and even a trolley with the included installation kits. It is ignited by 2 "D" batteries and can therefore be used as a reserve in areas where there is no power supply.
Please note: we offer a 37 mbar CE approved gas regulator for quick installation on the propane tank. Please note that the supplied gas regulator is only compatible with the propane gas bottle with 27mm clip connection. If your tank does not meet this standard, another gas regulator is required.

CAMPLUX BW158BC 6L Instant Gas Water Heater with Rain Cap, Tankless Propane Gas Boiler, Use for Outdoor Shower Camping RV Trip Horse Washing

24% OffFree Shipping

Why We Love It

Endless hot water anywhere.
Compliant, safe design.
Easy, user-friendly operation.

Main Highlights

ENDLESS HOT WATER, SAVING ENERGY - Delivering 6L/min of endless hot water at the flick of a switch anywhere. Only heats the water up for actually use. With 0.25 bar startup and ignited via 2-D cell batteries, it is great for campsite, RV, stables, trolley and other off grid areas. Energy class: A+
MuLTIPLE SAFETY FEATURES - The 6L tankless water heater features multiple protection configurations, such as flame failure protection, overheat protection, 20-min safety shutoff protection, enhancing your family safety
WEATHERPROOF RAIN CAP - Equipped with a rain cap, it is easily installed outdoor without worries that the rain runs down inside, as well as leaves, insects and other hazards, prolonging its lifespan. Drain plug is applied to drain the residual water from the appliance to avoid being frozen or broken
LIGHTWEIGHT COMPACT DESIGN - Camplux 6L gas shower comes with most of the necessary accessories to help quickly install. The provided 37mbar CE gas regulator is compatible with any propane gas bottle with 27mm clip-on connection. With lightweight and compact design, it is easy to carry everywhere
EASY TO OPERATE - Heat is easy to adjust via water knob and gas knob. LED temperature display shows you the exact outlet water temperature, useful for setting your shower temperature and safely giving a comfortable hot spa for your horses, dogs, cats, etc

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.

CAMPLUX Gas Water Heater 10 litres with Adjustable Handle F10, Portable Outdoor LPG Shower, Butane (28-30 mbar)/ Propane (37 mbar), for Camping/RV Trip/Barn, First Series

23% OffFree Shipping

Why We Love It

Ultra-portable and super lightweight.
Instant high-flow hot water.
Outdoor hot water solution.

Main Highlights

Most Portability in 10L model - Only weighs 7kg, product size 470x330x150mm. It is the world’s lightest and smallest water heater in its class
10 L/M Hot Water - 20 kW total power output, instantly ignites within 5 seconds and delivers high water flow rate up to 10 litres per minute, giving you a comfortable hot shower
3-level Adjustable Handle - Both for carrying up and hanging it on the screw wherever you go, ready for on-the-go shower. Handle folding up for easy storage
Hot Water Solutions for Outdoor - Just take it and a gas bottle, you can enjoy hot shower on campsite, RVs, poolside, summer houses, cabins and barns, and other off-grid areas
2-in-1 Knob Design - Choose your exact temperature with simple adjustments via the unique water and gas knobs

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.

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

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Why We Love It

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

Main Highlights

【Multi-functional water heater】-This water heater comes with, gas control centre, seasonal control centre,Water control centre and temperature display, continuous hot water supply, water and gas can be adjusted individually, suitable for indoor and outdoor, energy saving and more safety protection.
【Product Specifications】-18L camping water heate Length: 13.4 inches(34CM), Width: 5.9 inches(15CM) , Height:24.2 inches(61.5CM), Capacity: 18 litres, Ignition: Automatic ignition
【Ower Noise】-Outdoor Instant Water Heater has stable hot water temperature, low noise, comfortable bathing in all seasons, and the running sound is 48 decibels, which will not disturb you and your family's rest.
【Safer】-He has it with a variety of protection configurations, such as flame protection, overheating protection, 20-minute safety cut-off protection, which can improve the safety of the family and extend the life of the water heater.
【Widely Used】- portable water heater is widely used in outdoor shower, indoor shower, kitchen, laundry room, patio and other scenarios, both outdoor and indoor, which brings great convenience to our life.

ECUTEE LPG Hot Water Heater 18L 36KW, Portable Instant Gas Propane Boiler Stainless Steel Tankless LED Display w/ Shower Kit for Home Apartment Camping Outdoor Garden Use, Silver

5% Off

Why We Love It

Simple, quick setup everywhere.
Energy-efficient on-demand heating.
Ideal for outdoor use.

Main Highlights

18L/MIN INSTANT WATER HEATER - With this 18L tankless water heater, you can now generate hot water quickly and easily anywhere.The portable water heater operated with liquid propane generates up to 18 liters of hot water per minute. The user-friendly water heater for propane has been designed for quick and easy set-up. Instant hot water preparation, no power connection required. Automatic ignition by two D batteries (not included).
PERFORMANCE PARAMETER - Power: 36KW; Hot Water Output: 18L/min; Gas Supply: LPG(Liquid Propane Gas). Rate gas pressure: 2800Pa. Gas control knob: clockwise to increase the gas supply. Water regulator knob: clockwise to get more hot water. Smooth surface, no oil, easy to clean. The gas is connected through a standard 11 kg propane gas cylinder (not in the package included) which is also used for outdoor barbecues.
ENERGY SAVING - The instantaneous water heater enables water to be heated immediately. The water is only heated when required. This has the advantage that energy is only consumed when it is used. This propane water heater can also offer a summer / winter mode to choose from for energy saving. The corresponding working mode can be selected according to different seasons.
SAFE AND DURABLE - Three-Knob-control operation, simple operation. The fire is uniform and smooth, long service life, fully enclosed combustion chamber, stable combustion. Through the fire observe window you can observe the burning state of the water heater in real time at a glance. With the digital temperature display you can monitor the temperature of the outlet water in real time.
WIDE OUTDOOR USE - You can use this portable water heater on a camping holiday, in your own garden, in the garage or in the weekend house. Particularly suitable for fixed installation outdoors. Instant hot water preparation, ideal for camping showers, trailers, campers, yachts and animals shower. Please confirm the type of gas used at home (liquefied gas or natural gas) before purchasing, and pay attention to the model you purchased.

8.9

Excellent

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We scanned 1947 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, thermomate, GASLAND, Lfhelper, VELPAX, ECUTEE, 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 9736 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 5L Gas Water Heater with 4.3L Water Pump, Freestanding Tankless Water Heater, AY132Max Instant LPG Water Boiler with Carrying Bag, for Camping/Outdoor Showers. We love many things about this product by CAMPLUX. What sets it apart from the competition is Adaptable to varied water pressure. , Bags easy transport to outdoors. , Effortless temperature control feature.
The best value product for most shoppers and where user satisfaction is continuously the highest is ThermoMate ZERO16 16L Gas Water Heater, Instant Outdoor Water Heater, Tankless Propane Gas Boiler, Use for Camping Showers, Horses Washing, RV Trip,Mobile Home Vacation by thermomate 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 BW158BC 6L Instant Gas Water Heater with Rain Cap, Tankless Propane Gas Boiler, Use for Outdoor Shower Camping RV Trip Horse Washingat CAMPLUX with a 24% 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 scanned 1947 products

We concluded that: