Conservatories can gain heat much faster than ordinary rooms. This is a higher-capacity comparison, not a promise that a portable unit can handle every glazed space.
Published · Last reviewed
Reduce solar gain and calculate an adjusted BTU range before shopping. If the conservatory's load sits beyond credible portable capacity, a higher headline BTU is not a substitute for a surveyed fixed-system option.
Price evidence is labelled as current or last seen. Confirm the exact model, seller, delivery and availability before buying. The table scrolls horizontally on smaller screens.
| Rank | Model | Capacity | Room guidance | Published sound | Rated input | Price evidence |
|---|---|---|---|---|---|---|
| 1 | Wood's AC Palermo 22K | 22,000 BTU/h | Up to 65 m² | 53–65 dB | 2,500 W | No recorded retailer price |
| 2 | Wood's AC Palermo 18K | 18,000 BTU/h | Up to 53 m² | 53–65 dB | 2,030 W | No recorded retailer price |
| 3 | Wood's AC Cortina XL WiFi | 18,000 BTU/h | Up to 53 m² | 64 dB | 1,750 W | No recorded retailer price |
| 4 | Meaco Cirro+ 16000 BTU Inverter Smart Portable Air Conditioner | 16,000 BTU/h | 35–40 m² | 42–51 dB | 1,750 W | No recorded retailer price |
| 5 | Meaco Cirro+ 16000 BTU Inverter Smart Portable Air Conditioner & Heater | 16,000 BTU/h | 35–40 m² | 42–51 dB | 1,750 W | No recorded retailer price |
| 6 | Olimpia Splendid Dolceclima Air Pro 16 NW | 16,000 BTU/h | Up to 125 m³ | 52–54 dB | 1,580 W | No recorded retailer price |
| 7 | Trotec PAC 3910 X WiFi Portable Air Conditioner | 14,000 BTU/h | 12–52 m² | 52.3–53.6 dB | 1,575 W | No recorded retailer price |
| 8 | electriQ EcoSilent 14000 BTU Smart Quiet Portable Air Conditioner | 14,000 BTU/h | Up to 38 m² | 38 dB | 1,570 W | No recorded retailer price |
Ordered by verified cooling capacity, then manufacturer-stated maximum room area. Use the BTU calculator with high sun and large glazing, and seek a survey where the result exceeds portable-unit capability.
Last reviewed 1 September 2026. Commercial relationships do not change the order.
A specification order is useful only after the product type and capacity match the room. Apply these checks to every model, including the first one shown.
Open the product dossier for exact source documents, verification dates and any current or historical retailer evidence.
Wood'sMaximum-input illustration: about 63p/hour at 25p/kWh.
Why it appears here: Verified capacity is 22,000 BTU/h and the recorded manufacturer room guidance is Up to 65 m². Glazing and solar gain can make a conservatory need more than this general guidance suggests.
No current verified retailer priceUse the model dossier to check evidence and buying questions.
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Wood'sMaximum-input illustration: about 51p/hour at 25p/kWh.
Why it appears here: Verified capacity is 18,000 BTU/h and the recorded manufacturer room guidance is Up to 53 m². Glazing and solar gain can make a conservatory need more than this general guidance suggests.
No current verified retailer priceUse the model dossier to check evidence and buying questions.
Open decision cardAdd to comparison
Wood'sMaximum-input illustration: about 44p/hour at 25p/kWh.
Why it appears here: Verified capacity is 18,000 BTU/h and the recorded manufacturer room guidance is Up to 53 m². Glazing and solar gain can make a conservatory need more than this general guidance suggests.
No current verified retailer priceUse the model dossier to check evidence and buying questions.
Open decision cardAdd to comparison
MeacoMaximum-input illustration: about 44p/hour at 25p/kWh.
Why it appears here: Verified capacity is 16,000 BTU/h and the recorded manufacturer room guidance is 35–40 m². Glazing and solar gain can make a conservatory need more than this general guidance suggests.
No current verified retailer priceUse the model dossier to check evidence and buying questions.
Open decision cardAdd to comparison
MeacoMaximum-input illustration: about 44p/hour at 25p/kWh.
Why it appears here: Verified capacity is 16,000 BTU/h and the recorded manufacturer room guidance is 35–40 m². Glazing and solar gain can make a conservatory need more than this general guidance suggests.
No current verified retailer priceUse the model dossier to check evidence and buying questions.
Open decision cardAdd to comparison
Olimpia SplendidMaximum-input illustration: about 40p/hour at 25p/kWh.
Why it appears here: Verified capacity is 16,000 BTU/h and the recorded manufacturer room guidance is Up to 125 m³. Glazing and solar gain can make a conservatory need more than this general guidance suggests.
No current verified retailer priceUse the model dossier to check evidence and buying questions.
Open decision cardAdd to comparison
TrotecMaximum-input illustration: about 39p/hour at 25p/kWh.
Why it appears here: Verified capacity is 14,000 BTU/h and the recorded manufacturer room guidance is 12–52 m². Glazing and solar gain can make a conservatory need more than this general guidance suggests.
No current verified retailer priceUse the model dossier to check evidence and buying questions.
Open decision cardAdd to comparison
electriQMaximum-input illustration: about 39p/hour at 25p/kWh.
Why it appears here: Verified capacity is 14,000 BTU/h and the recorded manufacturer room guidance is Up to 38 m². Glazing and solar gain can make a conservatory need more than this general guidance suggests.
No current verified retailer priceUse the model dossier to check evidence and buying questions.
Open decision cardAdd to comparisonThe same model can be a sensible fit in one room and a poor fit in another. Use these scenarios to decide which evidence to collect next.
A portable unit may be a practical seasonal option when the adjusted BTU range fits an available model and a short sealed exhaust route is possible. Close internal doors during cooling and reduce solar gain first; otherwise the appliance is also fighting heat entering from the rest of the home.
Solar gain can dominate the result and manufacturer room-area guidance may not represent a highly glazed space. Use high sun and large glazing in the calculator. If the recommended range sits beyond credible portable capacity, do not buy the largest unit and assume the problem is solved.
Repeated long operating periods make sound, ownership cost and exhaust losses more important. A surveyed split or air-to-air heat-pump route may offer a different comfort profile, but needs outdoor-unit siting, drainage, electrical work, permission and qualified refrigerant work.
No. Ceiling height, glazing, orientation, shading, doors and outdoor conditions can dominate the load. Use an adjusted BTU range and treat manufacturer room guidance cautiously.
No. The room may be beyond a practical portable setup, or a lower-capacity model may already fit after shading improvements. Exhaust sealing and operating pattern also matter.
A shortlist position cannot tell you whether a product fits your room, window or tolerance for compressor noise.
Find the right cooling route