In some cases, it can even be a lifesaver.

The best options are built-in AC systems that properly vent outside.

These can keep entire houses cool and allow you to control the temperature to your preference easily.

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In some cases, the simple addition of Wi-Fi can add hundreds of dollars to the price.

A factor that may not be so obvious at first though is running costs.

Efficiency can help you save here.

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Over time a more powerful machine may be cheaper than a weaker one if its more efficient.

The Black+Decker BPACT12WTBlack+Decker BPACT12WT

Key Features

Specifications

The Black+Decker BPACT12WT is a reliably popular portable AC unit.

It features a high BTU rating and a high energy efficiency rating making it relatively cheap to run.

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The large number of positive reviews inspire more confidence in the reliability of the product from a well-known brand.

A 24-hour timer system allows you a broad range of configurability for how long it will run for.

The hose is also relatively short and only comes with adaptors for a small number of window types.

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This may force you to get another longer hose and/or another window adaptor.

The Haier QPCA14YZMW

The Haier QPCA14YZMW is a powerful mobile AC unit designed to cool large rooms.

A range of fan speeds allow you to configure the strength of cooling.

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you’re able to also choose to run a dehumidifying setting.

As with many mobile AC units, the hose is quite short at just 5 feet long.

This may require you to get a longer hose depending on how and where you want to position it.

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The system to mount the hose to the AC unit can sometimes be unreliable.

The vMIDEA MAP08R1CWT

The MIDEA MAP08R1CWT is a small and cheap option designed to cool smaller rooms.

It comes with a remote control so you dont have to get up to change the tweaks.

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A toolless window fitting kit is included, though it only fits a small range of windows.

Failure to do so may lead to it leaking on your floor.

It offers only two fan speeds which may not be enough control for every situation.

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The SereneLife SLPAC10

The SereneLife SLPAC10 is an old workhorse.

Its age is both an advantage and its disadvantage.

Being around for years has pushed the price down while demonstrating solid reliability.

Unfortunately, its also missing modern energy efficiency ratings so running costs will be a little high.

Its also quite loud and lacks a moisture dissipation system.

That was our round up f the best budget mobile AC units in 2021.

Have you bought a budget mobile AC unit recently?

Would you recommend doing so?

Let us know down below.