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Brunner Polarys Twinair 5 Portable Split Air Conditioning Unit
Original price was: £599.00.£569.00Current price is: £569.00.
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12 in stock
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Keep your pitch perfectly chilled. No drilling required.
Keeping your touring vehicle perfectly cool shouldn't mean permanently modifying your roof or worrying about tripping the campsite electrics. The Brunner Polarys Twinair 5 is a high-performance, portable split air conditioning system designed specifically for the reality of touring.
By separating the indoor evaporator from the outdoor condenser via an ultra-flat refrigerant hose, it delivers incredibly efficient, quiet cooling without the need for complex installations. Just hook it over the window, run it off a standard 6-amp campsite hookup, and enjoy a perfectly chilled living space.
Why the Twinair 5 is a completely brilliant bit of kit:
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Zero Vehicle Modifications: Simply hangs over an existing window or awning flap. No cutting, no drilling, and no permanent changes to your caravan or motorhome.
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Campsite-Safe Power: Intelligently optimized to draw minimal power, ensuring it runs reliably on standard 6-amp campsite electric hookups without tripping the breaker.
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Class A Efficiency: Powered by a high-performance Rotary Scroll Inverter compressor utilizing eco-friendly R290 refrigerant.
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Peace & Quiet: The heavy-lifting compressor sits outside, keeping your interior lounge and sleeping areas incredibly peaceful.
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Specification
Technical specification
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Awning Accessories
Air conditioner -
Cooling Capacity
5000 BTU / 1460 W: Powerful enough to quickly chill the air inside a standard touring caravan or motorhome. -
Cooling Volume
Up to 30 m³: Easily covers the internal living space of up to a large 6-berth layout. -
Power Draw
6-Amp Optimised: Runs completely safely on standard UK campsite hookups without tripping the breaker. -
Compressor
Rotary Scroll Inverter: Provides smooth, quiet cooling without causing sudden electrical power spikes. -
System Type
Portable Split: The noisy engine sits outside, keeping your interior lounge and sleeping area peaceful. -
Installation
Non-Permanent: Simply hangs over a window or awning flap. Zero drilling or DIY skills required. -
Efficiency
Class A / R290 Gas: Highly energy efficient to run and utilizes modern, eco-friendly refrigerant.
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How the Split-System Architecture Works
Unlike standard monoblock units that struggle with efficiency and noise, the Twinair 5 utilizes a highly intelligent split system. The indoor unit (evaporator) gently circulates cold air inside your vehicle, while the outdoor unit (condenser) handles the noisy heat extraction outside.
They are connected by a flexible, ultra-flat refrigerant hose that easily passes through a window, providing professional-grade cooling (up to 30 m³ volume) without the hefty installation costs of a roof-mounted unit.
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Installation & The "Thermal Bridge" Pro-Tip
Setting up the Twinair 5 takes minutes. Simply place the external unit on its provided brackets outside the window, run the flat hose through the opening, and mount the internal unit inside.
Golden Castle Pro-Tip: Because the window remains slightly ajar for the hose, it can create a “thermal bridge” where warm air and insects can sneak in. We highly recommend using a simple rolled towel or a custom foam insert to seal the remaining window gap. This locks the cold air in and ensures maximum cooling efficiency!
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Night Mode & Campsite Etiquette
A good night’s sleep is essential on holiday. Internally, the Twinair 5 operates on a “Super Silent” profile. However, because the outdoor condenser is doing the hard work, it naturally produces more sound outside.
When camping in close proximity to others, simply activate the dedicated Night Mode. This function specifically lowers the external decibel output, ensuring you maintain excellent campsite etiquette and keep your neighbours happy while you sleep in a perfectly chilled cabin.
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Multi-Purpose Use (Take it Home!)
Because this system requires zero permanent installation, its utility doesn’t end when the touring season does. The Twinair 5 is highly effective for cooling small home bedrooms or home offices during the summer heatwaves, making it a truly versatile year-round investment.
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Decommissioning & End-of-Season Care
To ensure your Rotary Scroll compressor lasts for years, proper storage is key:
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Internal Drying: Before packing it away for the winter, run the unit in Fan Mode for at least 4 hours. This evaporates any residual moisture on the cooling coils and prevents mold.
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Condensate Clearance: Manually tilt the units to ensure all water is fully drained from the internal collection trays.
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Filtration: Clean both the intake filter screen and the bottom filter sieve.
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Storage: Always store the unit in its original packaging in a dry, upright position to prevent any refrigerant migration issues.
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FAQ
Will this trip the campsite electrics? Not at all. The Twinair 5 is specifically optimized to draw minimal power, making it perfectly safe and reliable for standard low-amp (6-amp) campsite hookups.
Do I need to drill any holes or modify my window? Zero modifications are needed. The system uses an ultra-flat refrigerant hose that simply passes through an existing window or awning flap. The outdoor condenser hangs on provided brackets.
How do I stop hot air or bugs from coming through the open window? Since the window needs to remain slightly ajar for the flat hose, it creates a small gap. We highly recommend using a rolled-up towel or a custom foam insert to seal the remaining space. This locks the cold air in, maximizes efficiency, and keeps the bugs out!
Can I leave the unit attached to the window while driving? No, the Twinair 5 is a completely portable system. Both the indoor and outdoor units must be unhooked from the window and safely stowed away inside the vehicle before you begin towing or driving to your next destination.
Will the outside unit annoy my neighbours at night? The system features a dedicated ‘Night Mode’. Activating this lowers the external decibel output of the outdoor condenser, ensuring you maintain excellent campsite etiquette and keep the pitch peaceful while your cabin stays perfectly chilled.
What size caravan or motorhome will this actually cool? The 5000 BTU cooling capacity is highly effective for chilling enclosed spaces up to 30 cubic meters (30 m³). This covers the vast majority of standard touring layouts.
Does it require any special maintenance at the end of the season? Before packing it away for the winter, simply run the unit in ‘Fan Mode’ for about 4 hours to evaporate any residual moisture inside. Manually tilt the units to drain the water collection trays, clean the filters, and always store it upright in its original box.
