Portable Air Conditioners for Homes, Offices and Commercial Use

Portable vs Installed Air Conditioning

Portable and installed air conditioning systems serve different needs. Understanding the difference helps you choose the right solution.

A portable air conditioner is a freestanding unit that can be set up in minutes, requires no engineer visit and can be moved wherever it is needed. It exhausts warm air via a hose through a window or vent. It is ideal when permanent installation is not possible or not required.

An installed air conditioning system, sometimes called a split system or wall-mounted unit, is fixed in place by a qualified engineer. It is more powerful, more energy-efficient for long-term use and better suited to rooms that need consistent, year-round temperature control.

Choose a portable unit when you need flexibility, speed or a no-installation solution. Choose an installed system when you need permanent, efficient and powerful climate control in a fixed space.

What BTU Size Do I Need?

BTU (British Thermal Units) measures the cooling power of an air conditioner. A higher BTU rating means the unit can cool a larger space more effectively.

As a general guide for cooling:

• Up to 12,000 BTU is suitable for small rooms up to approximately 20 square metres, such as a bedroom, small office or compact server room.
• Up to 18,000 BTU is suitable for medium rooms between 20 and 40 square metres, such as a living room, open-plan office or retail unit.
• Up to 25,000 BTU is suitable for larger commercial spaces, events, warehouses and high-heat environments such as busy server rooms or kitchens.

Climachill supplies portable units across all of these ranges. If you are unsure which size is right for your space, contact our team and we will advise based on your room size, usage and heat load.

Best Portable Air Conditioner for Different Environments

Bedrooms: A 12,000 BTU unit is typically sufficient for most bedrooms. Look for a unit with a quiet mode or low noise setting for overnight use.

Home offices and small offices: A 12,000 to 18,000 BTU unit provides effective cooling for a single-person or small team workspace without requiring installation.

Server rooms: Server rooms generate significant heat and often need reliable backup cooling. An 18,000 to 25,000 BTU commercial unit provides effective temperature control and can be deployed quickly in an emergency.

Events and temporary spaces: Portable units are ideal for marquees, temporary event spaces, meeting rooms and pop-up environments where installed air conditioning is not available.

Commercial and retail: Our commercial-grade portable units are built for continuous use in high-demand environments and are not comparable to standard consumer units available from DIY retailers.

Commercial Portable Air Conditioning

Climachill supplies commercial portable air conditioning solutions to a wide variety of businesses, schools, hospitals, offices and commercial properties. Whether you need portable air conditioners for offices or flexible cooling for educational or healthcare settings, we are the team to call.

If you are looking to invest in a few portable air conditioners for your school, listed below are a few of the benefits you can expect to receive:

• Cheaper to Purchase. Portable air conditioners are much cheaper for smaller spaces that don’t require constant or extensive cooling.
• No Installation is Required. With no installation required, our vented portable air conditioners avoid the costs associated with fixed or wall-mounted systems.
• The portability of our systems allows units to be moved room-to-room or desk-to-desk as needed, making them ideal for events, meeting rooms and temporary work areas.
• Variety of Choice. Our portable air conditioners are available in a number of options, allowing you to tailor your choice to your exact requirements.
• Great Emergency Cooling Option. Should your built-in system ever fail, portable air conditioners offer a great emergency cooling solution for staff and employees.

For further advice on whether a portable air conditioner is the right choice for your commercial circumstances, or if you’d be better off with a wall-mounted installation instead, please do not hesitate to contact our team at your earliest convenience. With substantial expertise and experience in our name, we would be more than happy to help.

Do Portable Air Conditioners Need an Exhaust Hose?

Yes. All single-hose portable air conditioners need an exhaust hose to expel the warm air they extract from the room. Without it, the unit would recirculate warm air and would not cool the space effectively.

The hose is typically vented through a window, a gap under a door, a ceiling tile or a purpose-made vent panel. Climachill units come with the hose and fitting accessories required for straightforward setup.

Some of our New Generation Portable Air Conditioning Units feature self-evaporative technology, which recycles the condensation produced during cooling. It is estimated that on a hot humid day around 75% of the water created can be fully recycled by the system, making it far more cost-effective and environmentally friendly than previous models. This reduces the need to manually empty a water tank during operation, making them more practical for extended commercial use.

When Portable Air Conditioning Is Not the Right Choice

Portable units are not always the best solution. Consider a professionally installed system instead if:

• You need year-round heating and cooling from a single system. Most installed split systems provide both functions efficiently.
• You need to cool multiple rooms simultaneously. A multi-split installation connects several indoor units to a single outdoor compressor.
• You require the most energy-efficient solution for long-term use. Installed systems are significantly more efficient than portable units over time.
• Your space has no suitable window or vent for an exhaust hose. Without an exhaust route, a portable unit cannot function correctly.
• You want a discreet, permanent solution. Wall-mounted units are quieter, more powerful and do not require floor space.

In these cases, our installation services team can advise on the right system for your property.

Portable Air Conditioner FAQs

Can I use a portable air conditioner without venting the hose outside?

No. The exhaust hose must be vented to an external space to remove the warm air extracted from the room. Running a portable unit without venting the hose will result in warm air being recirculated, making the room warmer rather than cooler.

How long can a portable air conditioner run continuously?

Our commercial-grade portable units are designed for extended use and can run continuously. Domestic units should also be capable of sustained operation, though it is advisable to follow the manufacturer guidelines for each specific model.

Do portable air conditioners also heat?

Some of our portable units offer a heating function as well as cooling. Check the individual product specification or contact our team to confirm which models include a heat pump function.

Are your portable units suitable for server rooms?

Yes. We supply commercial-grade portable units specifically suitable for server rooms, including as backup cooling for when primary systems fail. Our units in the 18,000 to 25,000 BTU range are commonly used in this application.

Can I hire a portable air conditioner rather than buying one?

Contact our team to discuss your requirements. We can advise on the most cost-effective solution depending on whether your need is temporary or ongoing.

Do you deliver nationwide?

Yes. Climachill supplies portable air conditioners nationwide. Our installation services cover Sussex, Surrey and the South East.