The optimal AC setting for pets is 20°C to 24°C, and for most Queensland homes 22°C is the safe middle ground that keeps dogs, cats and small animals comfortable without overcooling or blowing the power bill out. That’s the short answer we give every week at AC Store, whether it’s a Labrador on the tiles, a senior cat hiding under the bed, or rabbits in the laundry that can’t tell you when they’re overheating.
Queensland summers don’t play fair with pets. Dogs cool themselves mostly by panting and through their paw pads, cats hide heat stress until it’s already serious, and small animals can slide from uncomfortable to dangerous in a couple of hours on a 35°C day. A properly sized reverse-cycle system, set right and left running while you’re out, does more for pet safety than any fan trick online.
Things to Know Before You Set the Thermostat for Pets
Pets can’t tell you when the room is off, so behaviour is your best indicator. Panting and seeking tiles point to heat. Curling up tight or shivering points to cold. Direct airflow onto a pet bed causes more problems than a slightly warmer room. Humidity matters as much as temperature. Running the AC at 16°C doesn’t cool the house faster, it just costs more and chills smaller pets.
Leaving the system running while you’re out is not a luxury. On a 33°C day, an unventilated Queensland home can push past 40°C indoors by lunchtime. A split system or zoned ducted air conditioner makes running a room or two all day affordable and safe.
Finding the Right Temperature Range for Your Household
For most Queensland homes with pets, 22°C is the sensible baseline. Push toward 20°C on extreme heat days or for double-coated dogs, and ease toward 24°C for kittens, seniors or short-haired breeds.
This range also matches where your reverse-cycle system runs most efficiently. The compressor cycles properly, humidity gets pulled down, and the room feels stable rather than swinging warm and cold. Setting below 20°C often triggers longer runtimes without a real comfort gain, especially in well-insulated Brisbane and Moreton Bay homes.
Ideal AC Setting by Pet Type
| Pet Type | Ideal AC Range | Notes for Queensland Homes |
| Dogs (average breeds) | 22°C to 24°C | Comfortable for most breeds, avoid direct airflow onto bedding |
| Flat-faced dogs (Pugs, Bulldogs, Frenchies) | 20°C to 22°C | Struggle badly with heat and humidity, keep cooler |
| Double-coated dogs (Huskies, Retrievers) | 20°C to 22°C | Extra insulation means they overheat faster indoors |
| Senior or short-haired dogs | 23°C to 24°C | Can get cold easily, watch for shivering |
| Cats (adult) | 22°C to 24°C | Give them a warmer corner to move to if they want |
| Kittens and senior cats | 23°C to 25°C | More sensitive to cold, keep out of direct vent flow |
| Rabbits and guinea pigs | 20°C to 23°C | Very heat sensitive, never place cages under vents |
Cooling Tips for Dogs
Dogs vary more than most owners realise when it comes to heat tolerance. Flat-faced breeds like Pugs and Bulldogs, thick double-coated breeds like Huskies and Retrievers, and any dog that’s overweight or elderly will struggle in temperatures a healthy Kelpie handles without breaking a sweat. Setting the thermostat right for the least tolerant dog in the home is the safe move.
Beyond the thermostat, small changes make a real difference. Keep dog beds off direct vent flow, offer multiple water bowls in cool spots, and give them access to tiled floors during peak heat. Walks in Queensland summer belong to early morning or after sunset, and hot bitumen can burn paw pads even when the air feels tolerable to you.
If a room struggles to hit temperature even with the AC running, the issue is usually poor airflow, undersized capacity, or afternoon western sun hammering the glass. A smart controller through smart home air conditioning lets you balance airflow room-by-room and pre-cool the space before the heat of the day builds.
Cooling Tips for Cats
Cats hide discomfort better than dogs, which is exactly why owners often miss the early signs of heat stress. A cat pacing between rooms, lying flat on tiles, breathing with an open mouth or hiding in the bathtub is telling you the ambient temperature has gone past what they can handle. Cats have a normal body temperature between 38.1°C and 39.2°C and rely on grooming, panting and cool surfaces to shed heat.
The trick with cats is giving them options. Cool the main living space to that 22°C to 24°C range, but leave a warmer room or a corner with a soft blanket where they can move if they get cold. Kittens, seniors and short-haired breeds especially will appreciate a warmer micro-zone away from direct vent flow. Fresh water bowls in more than one spot help too, since cats often drink more when water is close to where they rest.
Signs Your Pet Is Too Hot or Too Cold
| Signal | Too Hot | Too Cold |
| Behaviour | Restless, pacing, seeking tiles | Curled tight, hiding, seeking blankets |
| Breathing | Heavy panting, open-mouth (cats) | Slow, tucked under paws |
| Body language | Sprawled flat, lethargic | Tense, tucked, avoiding cool rooms |
| Gums | Bright red or pale, dry | Normal but pet may shiver |
| Where they settle | Tiles, bathtub, under fans | Sunny spots, laundry, on your lap |
Running the AC While You’re Out
On hot Queensland days, leaving the AC on while you’re at work costs far less than a vet bill for heatstroke, and gives your pets a stable environment rather than a house that heats up steadily through the day. Set it around 24°C, pair it with closed blinds on north and west windows, and leave fresh water in multiple bowls before you go.
For ducted homes, zone the AC so only the rooms your pets use are being cooled. That’s the biggest lever for keeping running costs sensible while still protecting your animals. If your current system doesn’t zone well, it’s worth a book a service call before summer peaks.
Small Pets, Rabbits and Guinea Pigs
Rabbits and guinea pigs suffer heat stress at temperatures dogs and cats find only mildly warm. Keep their room between 20°C and 23°C, never place their enclosure directly under a vent, and use indirect airflow. Frozen water bottles wrapped in a towel give small pets something cool to lean against on the hottest days.
Why AC Store for Pet-Friendly Cooling
We design and install air conditioning across Brisbane, North Lakes, Deception Bay, Caboolture and the Sunshine Coast every week, and pet households are a big part of that work. Steve, James and the team think about vent placement, zoning and outdoor unit position with the whole household in mind, four-legged members included.
Visit us at the north lakes store, Kawana showroom or Deception Bay warehouse. We stock LG, Mitsubishi Electric, Fujitsu, Daikin, Panasonic and Midea, so the recommendation matches your home and your pets.
Ready to Set Up Pet-Friendly Air Conditioning?
Tell us how many rooms need cooling, what pets live in the home and where they spend the day. We’ll match a split system or ducted plan to your home, from a single-room fix through to a fully zoned setup that keeps every household member comfortable through Queensland summer.
Frequently Asked Questions
What to set AC to for pets?
Set your air conditioner between 20°C and 24°C for pets, with 22°C as the safe baseline for most Queensland homes. Push closer to 20°C for double-coated dogs on extreme heat days, and ease toward 24°C for kittens, seniors or short-haired breeds. Avoid setting below 18°C.
Is 24°C too hot for dogs?
For most healthy adult dogs with cool flooring, 24°C sits at the upper edge of the safe range and is fine. It becomes too warm for flat-faced breeds like Pugs and Bulldogs, overweight dogs, seniors or double-coated breeds like Huskies. Drop to 22°C for those pets, especially when humidity is above 60%.
What is the 90/10 rule for dogs?
The 90/10 rule says 90% of your dog’s time on hot days should be spent in shade or air-conditioned comfort, with only 10% in direct sun. In Queensland practice, it means keeping the rooms your dog uses climate-controlled between roughly 10am and 6pm through summer.
Is 30°C too hot for a cat?
Yes. 30°C is uncomfortable for most cats and dangerous for kittens, seniors, overweight cats or flat-faced breeds. Watch for open-mouth breathing, drooling, lethargy or hiding in unusual spots. Cool the room to 22°C to 24°C, offer fresh water, and contact your vet if symptoms don’t ease within 20 minutes.
What temperature is too cool for cats?
Below 18°C is too cool for most adult cats, and below 20°C is too cool for kittens, seniors and short-haired breeds. Look for cats curling into tight balls or avoiding the AC room. Provide a warm bed away from direct vent flow so they have a warmer micro-zone.