Simple controls, clear settings
Connect your gas and water supply, select your preferred temperature and start the flow. Simple controls keep operation straightforward; follow the operating instructions for correct outdoor setup.
Comfort for everyone who comes along
ThermoFlow Portable Hot Water Heater
ThermoFlow Portable Hot Water Heater
Regular price
£489.00 GBP
Regular price
Sale price
£489.00 GBP
Shipping calculated at checkout.
From family showers at camp to muddy paws after the trail, ThermoFlow gives you steady hot water in seconds—without a fixed water supply. The heater, rechargeable battery, pump and shower head pack into one compact system, so everyone can get clean, warm and comfortable wherever you stop.
Hot water in 3 secondsAll-in-one hot water systemShowers, washing up & muddy paws
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Product Support & 24-Month Warranty from Delivery
30-Day Outdoor Trial & Easy UK Returns
Description
Description
The ThermoFlow Portable Hot Water Heater is an all-in-one outdoor hot-water solution for campervan trips, campsites and off-grid days. Its gas heater, rechargeable battery, pump and shower head work together to draw water from your vehicle tank, a portable container or a permitted natural source, then deliver steady hot water in seconds.
Use it for family showers, washing up, rinsing outdoor equipment or cleaning muddy paws. When you’re finished, the pump and shower head pack back into the unit, helping you keep a compact and organised outdoor setup.
To get started, you’ll also need a compatible gas canister and a suitable water source.
Features
Features
- All-in-One Design — The rechargeable battery, pump and shower head are fully integrated into one portable unit, with built-in storage for the accessories.
- Quick Outdoor Setup — Draw water from a portable container, your vehicle’s onboard water tank or, where permitted, a river or lake using a suitable inlet filter.
- Hot Water in Just 3 Seconds — Gas-powered instant heating brings water to your preferred temperature quickly, with simple, precise control.
- More Than Just a Hot Shower — Keep water within ±1°C of your selected temperature for showering, washing up, rinsing outdoor gear, cleaning muddy paws and other everyday tasks.
- Rechargeable for Off-Grid Use — The built-in battery powers the pump and controls, so you can use ThermoFlow without connecting it to your vehicle or mains electricity.
What's Included
What's Included
Specifications
Specifications
- Maximum water temperature: 60°C
- Temperature control: ±1°C of the selected temperature
- Heating source: Gas
- Weight: 8.3 kg
- Dimensions: 180 × 280 × 395 mm (L × W × H)
- Battery: 115Wh (14.8V, 7800mAh)
- Battery runtime: Up to 180 minutes per charge, powering the pump and controls; gas is required for heating
- USB-C input/output: 30W maximum
- Water pump power: 25W
- Maximum pump lift: 8 m
- Water pump flow rate: 9 L/min
- Shower head flow rate: 2.5 L/min
- Material: Metal
- Certifications: CE, RoHS and UN38.3
FAQs
FAQs
View ThermoFlow FAQs for answers about setup, water sources and choosing a kit.
Hot water. No fixed setup.
Heat water in seconds. Leave the power socket behind. Choose a water source that suits your stop.
01 / INSTANT HEAT
Hot water in 3 seconds.
Less waiting after a cold swim or a day on the trail. Instant gas heating delivers hot water for showers, washing up and quick rinses.
Choose your temperature. Smart control keeps it steady within ±1°C, so you can enjoy a comfortable wash.
02 / OFF-GRID FREEDOM
Hot water, without plugging in.
Enjoy a warm wash without connecting to your vehicle or mains electricity. Gas heats the water; the built-in rechargeable battery powers the pump and controls for up to 180 minutes per charge.
The battery, pump and shower head are integrated into one portable unit, with storage for the accessories.
03 / FLEXIBLE WATER SOURCING
Choose your water source.
Use your vehicle’s water tank or a portable container. The pump draws water to the unit, so you can wash, rinse or shower without a fixed tap.
A suitable river or lake can also be used where permitted, with an appropriate inlet filter. Heating does not make untreated water safe to drink.
See how simple it can be.
Set your water temperature
Choose the warmth that suits your shower, washing-up or quick rinse. Smart temperature control keeps the water within ±1°C of your selected temperature as you wash.
Switch between hot and cold
Double-tap to switch between hot and cold modes. Gas heats the water; the battery powers the pump and controls. Cold mode uses battery power alone.
Six built-in safety protections
Protection for tip-overs, no water, shower-head shut-off, no gas, power loss and overheating. Always follow the operating instructions; built-in protection does not replace correct outdoor setup.
Power for your trip
Power the pump and controls for up to 180 minutes per charge, or top up compatible phones, cameras and other devices with the 30W USB-C output.
Pack accessories inside
The pump and shower head pack inside the unit, with built-in storage to keep your accessories together. Pack up neatly and get ready for your next stop.
More than a hot shower.
One ThermoFlow unit for washing up, freshening up and rinsing off before the journey home.
Shower beside your vehicle
Create an outdoor wash spot on your campervan trip, without fitting a permanent hot water system.
Wash up at camp
Warm water for the washing-up after dinner, so you can get back to enjoying the evening.
Rinse muddy paws
Wash off the trail before your dog hops back into the vehicle. Cleaner paws, less mess inside.
Wash off salt and sand
Rinse yourself and your gear after surfing, swimming or fishing, before packing up for home.
FIND YOUR FIT
Find the right ThermoFlow kit
Every kit starts with ThermoFlow. Compare the extras, then choose the setup that fits your trip.
01 / THE STARTING POINT
Essential Kit
All-in-one hot water system. Add your gas supply and water source.
IN THIS KIT
- ThermoFlowHeater, rechargeable battery, pump and shower head in one portable unit
£489.00
Choose Essential Kit
02 / PACK & POSITION
Go Kit
An easier way to pack up and set up.
IN THIS KIT
- ThermoFlowAll-in-one portable hot water system
- Protective Carry BagKeep the unit and accessories together
- FlexArm SupportPosition the shower head where it works for you
£549.00 Save £18*
Choose Go Kit
Privacy tent shown
03 / YOUR OWN SPACE
Camp Kit
Hot water and privacy beside your vehicle.
IN THIS KIT
- ThermoFlowAll-in-one portable hot water system
- Protective Carry BagKeep the unit and accessories together
- Vehicle-Mounted Privacy TentSpace to shower, change or use your own portable toilet
£699.00 Save £68*
Currently sold out
* Savings compared with purchasing the included items individually. Gas canister, water container and portable toilet are not included. FlexMount is an optional accessory and is not included in any kit.
We've Got You Covered
Your 30-day outdoor trial starts on the date your ThermoFlow Portable Hot Water Heater is delivered to a UK address. Use it outdoors, and if it is not right for you, contact us by the end of day 30. You then have a further 14 calendar days to send it back. Retain and use the original packaging for the return to help prevent damage in transit. See the full trial terms.
For eligible UK ThermoFlow trial returns, we provide a prepaid return label or arrange collection through our nominated service. Please contact support before sending the product. Customer-choice returns for other products are sent at the customer’s cost.
Every ThermoFlow Portable Hot Water Heater includes a 24-month warranty from delivery covering manufacturing defects when the product is used and cared for in accordance with the instructions. Contact us for diagnosis and support; if a covered fault cannot be resolved, we will arrange an appropriate repair or replacement at no cost to you.
K
Very great shower, does what it needs to do.
J
Been living out of our camper and doing long overland trips for the past few months, and this ThermoFlow heater has been one of those things we actually use every single day.
Set up is easy, doesn’t take much space in the rig, and heats water way faster than I expected. After a cold morning or a dusty trail day, having a proper hot shower out in the middle of nowhere feels pretty luxurious.
Battery life has been solid so far. We usually get through a whole weekend trip without worrying about charging it constantly. Temperature control is also surprisingly stable no random freezing or burning water halfway through a shower.
What I like most is that it feels built for actual outdoor use, not just backyard camping. We’ve used it at campsites, beach runs, and remote spots with no issues.
Definitely worth carrying if you spend a lot of time on the road or off-grid.
E
We use this after mountain biking in the Alps to clean our two muddy golden retrievers at the trailhead. Strong water pressure and warm water straight from the stream. Worth every cent.
A
Super fast delivery. I emailed them to check which gas canisters work with it, and support replied in under an hour with exact recommendations. Excellent service!
R
Good product and follow up support.
C
Compact and very easy to operate solo. The screen is clear and the temp memory feature is great - you set your temperature once and don't have to keep adjusting it every time you shower.
D
Super simple setup when I need to shower. Just attach the gas canister, drop the pump in a bucket, and switch it on. Love that all the hoses and the shower head pack away neatly inside the unit itself.
K
Used this during late autumn in 5°C weather. The heat rise is incredible and the pump had no issues pulling water up from a stream. Lasted our entire 4-day trip on a single charge
L
Was skeptical about the instant heat claim, but it actually delivers. Takes cold water from a jerry can and makes it piping hot with zero temperature fluctuations. Great piece of gear for cold mornings in the Black Forest.
A
Just an amazing piece of kit
Does exactly as advertised ( better really )
Absolutely love it
A
Der Service war erstklassig. Wir hatten am Anfang Probleme mit unserem Gas. Nach einigem Hin- und Hergeschreibe kamen kurzerhand zwei Mitarbeiter bei uns vorbei und haben das Problem beseitigt. Jetzt läuft es sehr gut. Endlich warm duschen!
A
This product exceeded my expectations. The quality is excellent, it is easy to use, and it works exactly as described. It arrived quickly and was very well packaged. I am extremely satisfied with my purchase and would definitely recommend it to anyone looking for a reliable and high-quality product. Five stars
C
Absolutely love my instant hot water, great for festivals as a shower or just to do the washing up easy to pack and store I keep it in my van all the time amazing well built bit of kit
J
Had just one shower yet in our overlander camper and already love the ThermoFlow - oh, and made hot water for the dishes. Stunning product that works with the same gas canisters as our gas cooker.
The only downside (for us!) was the water pump having too large a diameter to fit in the water jerrycan attached to the vehicle. It was an easy fix to solder on a different pump, though.
J
Incredible piece of kit. Great flow of piping hot water. Delivered quickly
Instructions for use could be a bit more detailed but that's the only criticism I have
J
This is one great piece of kit, compact and hot water when you want.
D
The shower is well built, light weight and heats ice cold river water up in seconds.
Great when spending time off grid and wanting to keep clean.
Great for campervans without a hot water supply.
K
Solid feel, strong materials, awesome customersupport and fast delivery!
FAQs
Your questions, answered.
What else do I need to get started?
Every kit includes ThermoFlow with its rechargeable battery, pump and shower head. You’ll also need a compatible gas canister and a suitable water source. Gas canisters and water containers are not included.
How long can I use ThermoFlow off-grid?
You don’t need a mains or vehicle power connection during use. Gas heats the water; the rechargeable battery powers the pump and controls.
- Battery: up to 180 minutes per charge without charging other devices. That is equivalent to up to 36 five-minute sessions of pump-and-control operation, not 180 minutes of heating from one gas canister.
- 450g camping gas canister, heating 20°C water to 40°C: approximately 90 minutes of heated use, or 18 five-minute showers.
- 450g camping gas canister, heating 0°C water to 40°C: approximately 45 minutes of heated use, or 9 five-minute showers.
- Water: a five-minute shower at the fixed 2.5 L/min shower-head flow uses approximately 12.5 litres.
Shower counts are calculated estimates based on five minutes of continuous flow at 2.5 L/min. Actual runtime varies with inlet-water temperature, selected temperature, ambient conditions, canister type and other use. Allow for any additional washing or setup use. Heating requires both battery power and gas; a charge’s battery runtime is not a guarantee of hot-water runtime from a single canister.
Where can I draw water from?
Use a portable container or your vehicle’s onboard water tank. A suitable river or lake may also be used where permitted, with an appropriate inlet filter. ThermoFlow is a water heater, not a water purifier; heating does not make untreated water safe to drink.
Is it only for showers?
No. Use warm water for washing up, rinsing outdoor gear or cleaning muddy paws as well as showering. Choose a suitable temperature for the task and check the water before use.
How do I choose a kit?
Essential Kit: the ThermoFlow unit. Go Kit: adds a protective carry bag and FlexArm Support. Camp Kit: adds a protective carry bag and vehicle-mounted privacy tent; it does not include FlexArm Support. Compare the full contents and current prices in the kit guide above.
Which gas canister or adaptor should I use?
Check compatibility before buying a canister or adaptor. Send a photo of your proposed gas canister and connection to support@nomadia.shop so we can help you confirm the correct setup. Follow the product’s operating instructions.
Can ThermoFlow charge my phone or camera?
Yes. ThermoFlow’s USB-C port provides up to 30W output to charge compatible phones, cameras and other USB-chargeable devices.
- Keep ThermoFlow switched on while using the USB-C output, and connect your device with a suitable charging cable.
- You can charge a device while the hot water system is running. Gas provides the heat; the battery powers the pump, controls and USB-C output.
- Actual charging power depends on your device and cable. Check that your device supports compatible USB charging.
External charging uses the same built-in battery and reduces the runtime available for ThermoFlow. The advertised up-to-180-minute runtime does not also guarantee a separate allowance for charging other devices.
See ThermoFlow on real trips.
From wild camping to overland travel, see how creators use ThermoFlow in their own outdoor setups.
Off-grid comfort, in one unit
Off Grid Vehicles explores a self-contained outdoor hot-water setup.
“This is the first self contained off grid hot shower system I have seen and I love it.”
Off Grid Vehicles · from the video description
Includes paid promotion, as disclosed on YouTube.
Two nights in the Lake District
Ant Survive The Night takes ThermoFlow on a two-night wild-camping trip and asks whether bringing hot water is worth it.
Hot water for overland travel
MANvoyage4x4 shares an off-grid shower setup as part of an overland truck journey. See how it fits into life on the road.
Includes paid promotion, as disclosed on YouTube.