Midea PortaSplit 12,000 vs Cool 8,000: which to choose

The difference in one sentence

The 12,000 is the big sibling: more power (3.5 kW) and a heat pump, so it cools in summer and heats in winter too. The Cool 8,000 is the small one: less power (2.5 kW) and cooling-only, built for smaller rooms and for anyone who just wants to fight the heat.

• PortaSplit 12,000 BTU / 3.5 kW — heat pump (cooling and heating). Model MMCS-12HRN8-QRD0.
• PortaSplit Cool 8,000 BTU / 2.5 kW — cooling-only. Model MMCS-08CRN8-QRD0.

Both are the same concept — a true split with an outdoor unit, but no drilling and no installer — so the choice is not about format but about how much power you need and whether you also want to use it in winter.

Room size: how much power you need

The most useful rule is orientative, not exact: it depends on insulation, sun exposure, ceiling height and floor. As a rough guide:

• Cool 8,000 BTU: comfortable in small rooms, on the order of up to about 20 m².
• PortaSplit 12,000 BTU: built for larger spaces, on the order of about 25 to 35 m², like a living room or a large bedroom.

These figures are a compass, not a verdict. A very sunny or poorly insulated room "weighs" more than its square metres suggest. To fine-tune before deciding, work out the power with our guide on how many BTUs you need: undersizing means it will not cool well, and oversizing means paying more for nothing.

Cooling, or cooling and heating: the heat pump changes everything

This is the difference most people overlook. The 12,000 has a heat pump: the same unit that cools you in August gives you heat in the cold months. The Cool 8,000 only cools; in winter it is furniture.

If you want a year-round unit — cooling in summer, a heating boost in winter — the 12,000 justifies its higher price because you use it six months instead of two. It is also what sets it apart from almost any cheap portable.

If you only care about summer and already have heating, the heat pump is a feature you pay for and do not use: there the Cool 8,000 is the rational buy. If you want the detail, we cover it in the guide on portable AC with a heat pump.

Price: how much more the 12,000 costs

The price gap is significant and consistent with the difference in capability:

• Cool 8,000 BTU: reasonable band of about €450 to €900.
• PortaSplit 12,000 BTU: a band of about €650 to €1,400, with prices seen this season between €990 and €1,234 across the Spanish shops we track.

In other words, the 12,000 can cost quite a bit more, but in return it gives you more power and year-round use. If your room is small and you only want cooling, paying the difference for the 12,000 is oversizing. If it is large or you want heating in winter, the Cool 8,000 will fall short and you will spend worse in the end.

Availability: both sell out

No shortcut here: neither has continuous stock in Spain. They are seasonal products, with limited batches, and restocks sell through in hours when the heat bites. The 12,000, as the most sought-after, tends to disappear even faster.

Whichever you pick, the key is not guessing the restock day but hearing about it the moment it happens. We explain why the pattern works this way in why the PortaSplit sells out; neither version has a fixed channel, so it pays to watch several shops at once rather than sit waiting on a single one.

Which to choose

Choose the PortaSplit 12,000 BTU if:

• Your room is medium or large (orientatively, about 25 to 35 m²).
• You want to use it year-round: cooling in summer and heating in winter.
• You do not mind paying more for extra power and dual use.

Choose the PortaSplit Cool 8,000 BTU if:

• Your room is small (orientatively, up to about 20 m²).
• You only care about summer cooling and already have heating.
• You want to keep spending in check and not oversize the unit.

Whichever you decide, you can see the live state of the PortaSplit 12,000 and the PortaSplit Cool 8,000, and set an alert to hear the moment stock returns. The season pass costs €4.99 one-time (valid until 30 September 2026) and includes instant email or Telegram alerts; a free tier with a 20-minute delay also exists. AireRadar is independent, with no affiliation to Midea or any shop.