Holding the propex hs2211 campervan heater
Planning Layout & Design

Insider Knowledge About The Propex HS2211 Camper Van Heater

You’re here because you want to transform your rolling home into a cosy haven from the cold with the help of a camper van heater. But before parting with your hard-earned cash, you want the low-down on the Propex HS2211, right?

We don’t blame you! Propex heaters come with a hefty price tag, so it’s super smart to want assurance that your money will be well spent.

Now, we can almost hear you thinking that you don’t know how the HS2211 is different from the HS2000 model or why you should care.

But, there’s an essential difference between them, and buying the wrong one would be a very costly error! So, we’ll share the important differences between them, including the one huge difference!

As well as potentially saving you from buying the wrong heater, we’ll share with you our list of reasons for splurging on a Propex HS2211 camper van heater.

We’ll show you exactly how the HS2211 works and teach you where to put your heater ducts, so your van heater will run efficiently and cost-effectively.

Not only that, but we’ll go through all the kits that are available and show you which one we bought.

Then, once you’re an expert, head over to our 25 Stage installation guide to fit your Propex camper van heater.

This post may contain affiliate links. Meaning, if you make a purchase after clicking one, we may earn some commission. This pocket money will help Vandercamp Adventures continue to grow at no extra cost to you. It’s a win win situation!! Learn More…

Unboxing Video

Propex HS2211 vs HS2000

Both heaters have the same components and therefore function in the same way; they provide you with a warm and toasty camper van.

However, there are some important differences between them:


Propex Heater HS2211
  • Indoor and outdoor installation.
  • Weight – 7.7kg
  • Size – L:430mm W:230mm H:147mm
  • External mounting will require 2x 70mm (2.75”) duct holes through the floor of the van.
  • Costs approximately 15-20% more than the HS2000.
  • Protected from moisture and water ingress.
  • If it fails due to being mounted outside it is covered by the guarantee.


Propex heater HS2000
  • Indoor installations only.
  • Weight – 5.8kg
  • Size – L:315mm W:165mm H:95mm
  • Internal mounting will require 2x 51mm (2”) flue pipe holes through the floor of the van.
  • Costs approximately 15-20% less than the HS2211.
  • If it fails due to being mounted outside, it is not covered by the guarantee.

Essentially, the Propex HS2211 camper van heater is bigger, heavier and more expensive version of the HS2000. But there’s one crucial reason to spend the extra money!

It’s wearing a heavy-duty raincoat, meaning you can mount it somewhere outside your camper while still being covered by the guarantee.

Why We Chose The Propex HS2211 Camper Van Heater

Now, because we don’t have much room in Vandercamp (a short wheel base van), we needed a heater to run from our existing LPG gas tank and mount externally.

We researched the different heater types and their efficiency, cost, weight, size, manufacturer, usability, and reliability.

After spending hours weighing up the pros and cons, we finally decided to splurge on a Propex HS2211.

A Propex HS2211 Camper Van Heater Is:

  • Quiet: High-quality fans, ball race bearings, enclosed motors and the added sealed casing protection; keeps everything quiet. Nevertheless, there will always be some air noise from the air ducts.
  • Electrically efficient: It draws less than 1.7 Amps at 12 Volts when it’s in use and only 0.01 Amps on standby.
  • Gas efficient: The heated air is re-circulated, saving gas. It uses LPG (Butane and Propane), which is greener and cheaper to run than diesel heaters. 
  • Additional ventilation: The circulating air reduces condensation, mould build-up and keeps your camper fresh.
  • Thermostat controlled: An electronic thermostat turns the heater on/off to maintain the desired temperature.
  • Externally mounted: It’s made from corrosion-resistant materials and sealed from moisture and water. 
  • Compact: The size and shape of this heater will allow it to fit comfortably underneath a small van like ours (a VW Transporter). Furthermore, its low-profile design doesn’t affect your camper’s ground clearance.
  • Reliable: Propex are a UK based company with 35 years of experience; they strictly adhere to all UK and EU safety standards.
  • Not plastic: It has a sturdy, protective metal casing (where most others are plastic), although this means it’s slightly heavier, at 7.7kg.
  • Readily available: Propex has distributors in 15 countries, including Europe, the USA, Russia and New Zealand. Handy if you need replacement parts while travelling.
  • Support guaranteed: The Propex team are helpful and on hand to provide help and technical support.

To us, a Propex heater is a worthy investment because they’re built to last. We didn’t want to potentially source a new heater while travelling or keep sending broken heaters to landfill.

(Side note – we recognise this choice is a privilege and not everyone has the capital to buy an expensive heater.)

How Does It Work?

Are you ready to do some learnin’? Yeah, you are, because you’re the type of person who likes to know how stuff works!

1: Inside the heater, an inline fan draws air in via the inlet duct.

2: This air mixes with fresh air (via the combustion inlet) and gas (via the gas supply) in the combustion chamber.

3: In the combustion chamber, the mix of air and gas is then automatically ignited.

4: All the fumes created in the combustion chamber are drawn out through the exhaust flue, because the unit is totally sealed.

5:The reaction in the combustion chamber heats the surface area of the heat exchanger.

6: As the fan continues to push the air, it flows through the (now hot!) heat exchanger.

7: The air is heated up as it goes through the heat exchanger.

8: This hot air then flows through the outlet duct into the living space of the camper.

How Does It Work Efficiently?

9: As the air in the camper becomes warmer, the fan continues to draw air into the heater via the inlet duct.

10: This warmed air flows back into the heater.

11: Once again, it mixes with the gas and fresh air in the combustion chamber.

12: As it passes through the heat exchanger, it gets even warmer.

13: The hot air then flows back into the living space via the outlet duct.

And so, the cycle continues.

Each time the heater draws in the warmed air via the inlet duct, the heating process becomes more efficient.

This cycle continues until the thermostat inside the control panel reaches the desired ambient room temperature, then the heater will automatically switch off.

However, once the temperature drops below your chosen setting, the heater restarts the cycle.

This cycle helps your Propex camper van heater be cost-effective, too. As a result of recycling hot air, less gas (and electricity) is used.

What’s The Best Duct Pipe Positioning?

The HS2211 heater has two vents; an inlet and an outlet.

Inlet vent: Draws air into the heater from your campervan.

Outlet vent: Blows hot air into your camper.

The correct placement of the inlet and outlet ducting vents is super important for efficient hot air circulation.

Avoid positioning the vents adjacent to or directly opposite each other; the air will not circulate efficiently.

This will cause areas of still air which will stay cooler than the heated space. You’ll end up creating the perfect environment for condensation, damp and mould. We’re sure that’s not what you’re aiming to do!

Adjacent or opposite ducting will cause areas of still air, where condensation, damp and mould could grow.

The most efficient way of heating your space is to position the vent ducts so all the air can recirculate. However, campervans naturally create still air space because they are so compact with furniture, storage and stuff.

Suppose you’re installing the heater ducting before building your furniture. In that case, you need to have a detailed layout design to ensure correct duct positioning.

Check out this post about designing your perfect camper van layout.

On the other hand, if you’re routing the ducting around after completing the furniture, you can place them in such a way that avoids creating any “still air” spots.

Created by potrace 1.16, written by Peter Selinger 2001-2019


The FAQ’s section of the Propex website says the total combined length of ducting should not exceed 5 Metres.

However, after speaking with Propex directly, they said it could be longer, but the ducting would lose efficiency, as the hot air has further to travel.

If you only have one outlet vent, then the ducting length should not exceed 1.5 metres.

On the other hand, if you have more than one outlet vent, the ducting length to the vent closest to the heater should not exceed 1.5 metres.

VW T5 Camper Van Heater Installation Plans

Our Propex HS2211 camper van heater ducting and vent layout

Check out the gas installation layout for Vandercamp’s HS2211 heater

The Propex HS2211 Camper Van Heater

Propex Camper Van Heater Kits

There are three kits available to choose from. The size of your camper van and the layout will determine what kit is best suited to you.

These kits do not include the components for the gas installation, supply cable wiring and bracket for securing the heater underneath the van.

We designed and made our own bespoke HS2211 heater bracket.

Factory fitted brackets, which you could bend with your fingers.
Rods, eyeles, nuts and washers in order to make a campervan bracket
Bespoke brackets to securely mount the campervan heater under the van.

V1 Kit

Single Outlet

V1 HS2211 Propex Kit

  • HS2211 heater
  • 60mm APK ducting – (2m)
  • Combustion air inlet flue (1m)
  • Exhaust outlet hose (0.75m)
  • Control panel (thermostat)
  • Control panel wiring (3.5m)
  • Outlet duct vent x1
  • Inlet duct vent x1
  • Jubilee clips x2
  • Flue pipe clips (p clips) x3
  • Cable ties x3
  • Fuse carrier x1
  • 5 Amp fuse x1
  • Spade connectors x2

V2 Kit

Twin Outlet

Everything in V1 PLUS:

V2 HS2211 Propex Kit

  • Open/close vent x1
  • Y branch x1
  • Extra metre of 60mm APK ducting – so 3m in total
  • Extra fasteners and screws

V3 Kit

Three Outlet

Everything in V1 + V2 PLUS:

V3 HS2211 Propex Kit

  • An additional open/close vent
  • And additional Y branch
  • Extra metre of 60mm APK ducting – so 4m in total
  • Extra hose clips, fasteners and screws.

The components listed in the kits above are available to purchase on their own. So, you can make up your own kit or add stuff to an existing one, which is what we did.

We bought the single outlet vehicle kit (V1) and used the following components to make it fit our layout:

ProductImageDescriptionUses View online
DuctingPropex 60mm APK marine grade ducting60mm APK Marine Grade DuctingInlet and Outlet ductingBuy from Propex
T pieceT Piece for 60mm (65mm) Hot Air DuctingJoin ducting together to allow multiple inlets/outlet ventsBuy from Propex
Open/close and directional vent Propex open close adjustable ducting ventOpen Close Vent Directional and RestrictableTo direct and restrict air flowing through a vent.Buy from Propex
Thermostat extension cable Thermostat Extension Cable With ConnectorsTo extend the existing 3.5metre thermostat wiringContact Propex

Technical Specification

Maximum dimensionsHeight: 230mm, Width: 157mm, length: 430mm
WeightUnder-floor Installation 7.7kg
GasButane 28-30mbar – CAT I3+ (28-30/37), Butane/Propane 30mbar – CAT I3B/P (30)
Propane37mbar – CAT I3p (37)
Gas Consumption(M) 150g/h
Classification of HeaterType: C53 (Fanned) Normal Installation
C13 Vehicle In Motion Installation
Nominal Heat InputGas 2.0Kw
Battery Supply
Nominal voltage12V d.c.
Operating range10.0V d.c. min. to 15V d.c. max.
Maximum currentd.c. gas operation: 1.7 Amps (0.01Amps on standby)
Dry Storage Temperature-20°C to 70°C
Hot Air Duct Diameter60mm ID
Flue Diameter22mm ID
Maximum Exhaust Flue Length2m
Minimum Exhaust Flue Length0.75m
Maximum Combustion Air Flue Length2m
Minimum Combustion Air Flue Length1.0m
This information is taken directly from the Propex website

Manuals And Documentation

HS2211 Propex Heater

HS2211 Propex Heater
Installation Manual


Now you can buy the Propex HS2211 camper van heater with confidence, knowing it’s just what your rolling home needs!

We’ve shared with you why we chose a HS2211 as well as the kits and components that are available. In addition, you now know the perfect placement for your duct vents to ensure maximum efficiency and cost-effectiveness.

So now you’re about to buy your camper van heater, you need to head over to our 25 Stage Installation Guide to install it!

1 Comment

  • Reply
    How To Install A Propex HS2211 Campervan Heater -
    06/09/2021 at 3:39 pm

    […] One final thing, we’re assuming that you’re clued up about the most effective place to put your campervan heater and your outlet ducts. If you’re not sure, then have a read of this post. […]

Leave a Reply