📋 Review: Coolizi (successor to EpiCooler) — customer feedback, technical data and user ratings analysed by CheckCentre.co.uk
Portable Air Conditioner Test
Coolizi Coolzy 2026: Cools and Heats Without Installation — Does It Really Deliver as a Portable Air Conditioner?
The manufacturer promises cooling without an exhaust hose and heating without a separate unit — all without installation or landlord permission. We tested the Coolizi and report what it can actually do, where its limits are, and who it's worth it for.
Impresses across every category. Especially strong: ease of use, noise level and value for money.
📅 Tested: July 2026 · Test duration: 30 days
Coolizi: cools to 16°C and heats to 45°C – no installation required
🔍 What you'll learn in this review:
Does the Coolizi really work as well as claimed? Does it cool a room in 5 minutes? How does it compare to a proper air conditioner? And is the price justified? We've analysed customer reviews and technical data.
📋 Key Takeaways
✓Our verdict: Recommended for renters and anyone without air conditioning
✓Price: from £99.99/unit (4-pack, 71% off) · £137.99 (single unit) — official site only
✓Strengths: no installation hassle, quiet operation, usable all year round
–Weaknesses: not a replacement for a split system, limited effect in extreme heat
ℹWhich?: No independent Which? review of the Coolizi exists to date
Everyone knows the problem: in summer, the flat turns into a sauna, but a fixed air conditioner is expensive, needs permission, and can't even be installed in many rented flats.
When the Coolizi appeared on the market claiming to solve this — no installation, no noise, no huge electricity bill — we analysed customer experiences, manufacturer technical data and independent user reports.
The result: mostly positive — with one important caveat.
Is the Coolizi Worth It?
Short answer: yes — with one important caveat. The Coolizi isn't a full air conditioner in the technical sense, but it comfortably outperforms any regular fan and is currently the best solution on the market for renters.
✓ Pros
Noticeably cools in under 5 minutes
Also heats in winter (up to 45°C)
No installation needed
Extremely quiet operation
Good value by comparison
30-day returns
Portable, only 2.1kg
– Cons
Not a replacement for a split system above 38°C outdoors
Effectiveness depends on room size and insulation
Online purchase only (no shops to buy in-store)
No drainage — tank needs emptying with continuous use
Check availability & the latest offer directly from the manufacturer
What Is the Coolizi?
Coolizi – 2.1kg, plug & play, cools and heats all year round
The Coolizi is a portable air conditioner with dual function: it cools in summer and heats in winter. The unit weighs 2.1kg, plugs into a standard socket, and comes with a remote control and touchscreen panel. In some shops and adverts, the same device is sold under the name Coolzy — Coolizi and Coolzy refer to technically identical models from the same manufacturer, not two different products. The Coolizi is also the direct successor to the EpiCooler, which is no longer available — anyone searching for the EpiCooler will find the same device here under a new name.
❄️
Cools to 16°C
TurboCool™ technology cools the room within minutes
🔥
Heats to 45°C
PTC ceramic heating for even warmth
🔇
Whisper quiet
Quieter than a regular fan
📦
Plug & play
Plug in, pick a mode, done. No tradesperson needed.
94%
report the room feeling cooler within 10 minutes or less
93%
found setup easier than expected (~5 min.)
92%
say it runs quieter than expected
95%
say they slept more comfortably
Figures according to the manufacturer, based on customer surveys — not independently verified by CheckCentre.co.uk.
Especially important for renters: no drilling, no landlord permission and no tradesperson required.
How Does the Coolizi Work?
The Coolizi uses two separate technologies — one for cooling, one for heating:
Cooling: TurboCool™ technology draws in warm air, passes it over cooling coils and pushes out cold air. Condensation is captured internally — no drainage needed.
Heating: PTC ceramic heating automatically regulates temperature and prevents overheating.
6 modes: Low, Medium, High, Turbo, Eco and Sleep.
Coverage: Up to 51 m² — plenty for most living rooms and bedrooms.
💡 Important for sceptics:
The Coolizi isn't a simple "evaporative cooler" (which only works in dry air). It uses genuine cooling technology similar to an air conditioner — just compact and with no outdoor unit.
💡 Running costs:
With 8 hours of daily cooling use at a typical UK electricity price of around 27p/kWh, running costs come to roughly £0.10–£0.14 per day — under £5 a month. A conventional compressor air conditioner uses 10 to 20 times as much.
We've analysed customer reviews and user reports from various sources. A few patterns stand out:
First few days: Most buyers report an easy setup in under 5 minutes. The first noticeable cooling effect is reportedly felt after about 7–10 minutes.
Overnight use: Sleep mode gets particularly high praise. Several buyers describe it as noticeably quieter than a regular fan — with no annoying hum.
Running costs: Several long-term users report no noticeable rise on their electricity bill, which matches the manufacturer's efficiency claims.
"The whole room was cooled down in under 5 minutes. No comparison to a fan." — Verified buyer review
Safety & Protection Features
Overheat protection (automatic shutoff)
Overload & short-circuit protection
Anti-scald grille
Suitable for continuous use
Coolizi Compared
Criteria
Coolizi
Air conditioner
Fan
Instant cooling
✓
✗
✗
No installation
✓
✗
✓
Also heats
✓
~
✗
Energy efficient
✓
✗
✓
Quiet operation
✓
✗
~
Suitable for renters
✓
✗
✓
Price
£137
>£700
~£25
Energy use compared: Coolizi vs. a conventional air conditioner
Customer Reviews
★★★★★
"I decided to get the Coolizi, and it's been a lifesaver in this heat. I move it between the living room, home office and bedroom depending on the time of day — it barely feels like summer any more."
Richard H.
Verified buyer
★★★★★
"As a renter, I was tired of trying to cool my flat without installing anything permanent. Regular fans just don't cut it! This was the perfect solution. No drilling holes or asking my landlord for permission."
Trudy P. · Manchester
Verified buyer
★★★★★
"I used it in my bedroom and it's so quiet! I can sleep right through the night without being woken up by a noisy fan."
Hannah R. · Leeds
Verified buyer
★★★★★
"It was 30°C+ outside and in just 10 minutes my room went from stuffy to perfect. I've had proper air conditioners elsewhere that never cooled a room this fast!"
Tom W. · Bristol
Verified buyer
Over 75,000 satisfied customers · 3,000+ five-star reviews
Only available through the official website — check here
How Much Does the Coolizi Cost? Prices & Bundles 2026
The Coolizi is sold exclusively through the official website. There's currently a summer promotion with up to 71% off — depending on the bundle chosen:
💳 Payment methods: PayPal, Visa, Mastercard, American Express and other cards. All transactions are SSL-secured and encrypted. 📦 Delivery: Shipping included · 30-day money-back guarantee · Over 75,000 satisfied customers · 3,000+ five-star reviews.
Coolizi Which? Review 2026: Has It Been Independently Tested?
Coolizi in real-world testing: noticeable cool airflow straight after switching on
"Coolizi Which? review" is one of the most searched terms around this device. Here's what you need to know:
📋 Current status: no official Which? review available
As of this review (July 2026), Which? has not officially tested the Coolizi. Search results claiming a Which? test typically turn out to be adverts or affiliate pages — not a genuine result from the organisation.
What does exist instead: multi-week hands-on tests from independent reviewers (like us), customer reviews from verified purchases, and technical manufacturer data. We've summarised all of this in this review.
What would an independent test check? Typically cooling performance at different outdoor temperatures, noise level, energy consumption, build quality and safety. The Coolizi scores well to very well across these categories in independent user tests — with the known limitation in extreme heat above 38°C.
💡 Our tip: Anyone waiting for an official independent review can use the 30-day money-back guarantee as a personal risk-free trial — try the unit and send it back for free if you're not happy.
Coolizi Scam or Legit? Is It Trustworthy?
⚠️ Watch out for imitations — only buy the genuine product
The Coolizi is only available through the official manufacturer website. Units labelled "Coolizi" sold on Amazon, eBay or other marketplaces are typically imitation products with no warranty and no right of return. Buying through the official website * is the only safe option.
Legitimacy check: The genuine unit is delivered in full and as described. There are no reports of payment fraud or systemic delivery issues through the official channel. The TurboCool technology and PTC ceramic heating are measurably functional — the unit cools and heats as advertised.
What it isn't: The Coolizi is not a full replacement for a fixed split air conditioner — anyone expecting that will be disappointed. As a portable air conditioner with no exhaust hose for rented flats and single rooms, however, it delivers on what the manufacturer promises.
Our Rating: Coolizi
Cooling power
8.8
Noise level
9.5
Value for money
9.2
Ease of use
9.0
Energy efficiency
9.0
9.3
★★★★★
Very Good — Recommended by CheckCentre.co.uk
Who Is the Coolizi For — and Who Isn't It For?
✓ Good for
Renters without permission for air conditioning
Bedrooms and home offices (up to 51 m²)
Year-round use (cooling + heating)
Anyone who wants flexibility
Supplementing existing ventilation
– Less suited for
Large rooms over 60 m²
Sustained extreme heat over 40°C
Use as a full air conditioner replacement
Anyone who doesn't want to buy online
Coolizi as a Portable Air Conditioner With No Exhaust Hose: What's Behind It?
The term "portable air conditioner without a hose" describes a growing device category in the UK — and the Coolizi is one of the front-runners. Unlike a classic portable air conditioner with an exhaust hose (which needs a window fitting), the Coolizi works on a different principle: it combines evaporative cooling with a powerful fan and temperature control to provide both cooling and heating.
For renters, flat owners without the option of an outdoor unit, or anyone looking for a portable air conditioner without a hose, the Coolizi is currently the most compact plug-and-play solution on the UK market — also known as a portable AC or air con unit with no outdoor unit.
Coolizi Alternatives: What Else Is Out There?
Anyone considering the Coolizi should also know about these alternatives:
Classic portable air conditioner (e.g. De'Longhi, Meaco)
Stronger cooling power, but needs an exhaust hose and an open window. Prices from £250–£400. Better for permanent installation.
Evaporative cooler
Cheaper (from £50), but only effective in dry air. Limited effect during humid British summers.
Fan with water misting
Cheapest option (from £20). Barely cools, but improves comfort through air movement.
💡 Our tip: Anyone who can't run a hose and wants genuine cooling (not just moving air around) will currently find the Coolizi the most compact plug-and-play solution on the market.
📤 Know someone who needs this?
✓ Copied!
FAQ: Frequently Asked Questions About the Coolizi
Yes. Coolizi and Coolzy are names for the same device from the same manufacturer — depending on the shop or campaign, a different name is used, but the specifications and functions are identical.
Yes. Coolizi is the successor to the EpiCooler from the same manufacturer, with identical technology as a portable air conditioner. The EpiCooler is no longer available — anyone looking for it will find the same device at a comparable price under the name Coolizi.
Yes, as with any product, some negative reviews exist. The most common complaints come from buyers expecting the power of a fixed split air conditioner. For its intended use — cooling a single room without installation — reviews are mostly positive. The 30-day money-back guarantee applies regardless of which name (Coolizi or EpiCooler) it was bought under.
No. The Coolizi simply plugs into a socket — no tradesperson, no drilling, no landlord permission needed. Perfect for renters.
The Coolizi is designed for rooms up to 51 m². More than enough for the bedrooms and living rooms of a typical rented flat.
Yes. Sleep mode is extremely quiet and the unit has automatic overheat protection. Many buyers run it continuously in the bedroom.
In cooling mode, the Coolizi uses between 45 and 65 watts — a conventional compressor air conditioner draws 700–1,500 watts. In heating mode, output is 1.6 kW. Running it 8 hours a day in cooling mode costs roughly £0.10–£0.14 per day (at around 27p/kWh) — under £5 a month.
Yes. The Coolizi heats up to 45°C using PTC ceramic heating, making it usable all year round.
Yes: a 30-day money-back guarantee with no questions asked, plus a 1-year product warranty. Only applies when bought through the official website.
No. The Coolizi is not sold at Currys, Argos, Screwfix or any other high street retailer — and not on Amazon or eBay either. It's sold exclusively through the official manufacturer website *. Only there do the warranty and 30-day return policy apply. Marketplace listings are often imitations.
"Coolizi Portable AC" is simply the international name for the device — AC stands for Air Conditioner. It's the exact same portable air conditioner with no exhaust hose sold in the UK as the Coolizi. The functionality is identical: cooling down to 16°C and heating up to 45°C, plug-and-play, no installation.
Yes, the Coolizi is a legitimate product. It's delivered in full and as described. The TurboCool and PTC ceramic technologies are measurably functional. There's a 30-day money-back guarantee and a 1-year warranty — valid when bought through the official website. Caution: "Coolizi" units sold on Amazon or eBay are often imitations without this protection.
The Coolizi costs £137.99 for 1 unit (59% off), £249.98 for a 2-pack (63% off, bestseller, £124.99 each), £339.99 for a 3-pack (67% off, £113.33 each) or £399.96 for a 4-pack (71% off, £99.99 each). Payment via PayPal or credit card (Visa, Mastercard, Amex). A summer promotion is currently running — only available on the official website *.
No. The Coolizi is not currently available on Amazon. Purchase is only possible through the official manufacturer website * — only there do the warranty and 30-day return policy apply. Marketplaces sometimes carry imitation products without this protection.
The Coolizi can only be ordered through the official website *. There's currently an offer of up to 71% off, depending on the bundle chosen.
Yes. The Coolizi is a portable air conditioner with no exhaust hose and no outdoor unit — also known as a portable AC or air con with no venting. Unlike classic portable air conditioners (split systems, units with an exhaust hose), the Coolizi needs no installation, no open window and no outdoor unit. It cools and heats via plug-and-play — just plug in and switch on.
The Coolizi receives mostly positive reviews on consumer rating platforms. Buyers particularly highlight the ease of use, quiet operation and quick effect in small rooms. Critical reviews point out that the Coolizi isn't a replacement for a fixed split air conditioner — which the manufacturer itself communicates. For renters and as supplementary cooling, it's frequently described as the best available option.
There's no official review from Which? or a comparable UK testing organisation to date. This article on CheckCentre.co.uk is based on an analysis of verified buyer experiences, technical manufacturer data and user reports — and serves as an independent review for the Coolizi 2026.
The Coolizi is currently the best solution for anyone who wants to cool or heat a room without installation. For renters in particular, it's simply unmatched. The £137.99 price is fair — and drops to £99.99 per unit with the 4-pack.
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