Check where warm air actually blows
Run the heating system briefly and use a tissue near the register to map airflow without putting anything inside it. Watch for dust moving toward the box or litter blowing out. Do not cover or block the vent with a litter box, mat, or storage; follow HVAC clearance guidance.
Watch entry and exit behavior
Notice whether your cat pauses at the box, rushes out when the furnace starts, or avoids it during heating cycles. These observations matter more than whether the spot feels warm to you. Keep scooping on the usual schedule so a dirty box is not confused with an airflow problem.
Move the box in stages when possible
If the vent is a problem, add a second box in a quiet accessible location first. Allow your cat to use it reliably before retiring the original one. In a multi-cat home, avoid placing all boxes along one narrow hallway where another cat can block access.
Choose a spot that works all year
A laundry room or utility closet may bring loud appliances, closed doors, or poor access. Aim for a stable location that is easy to reach day and night. If accidents begin or urination changes, consult your veterinarian rather than assuming the heating system is the only cause.
What to check before you decide
- Check airflow with heat running
- Keep registers unobstructed
- Add another box before removing the old one
When a product change is not the first step
Straining to urinate, repeated trips with little urine, or crying in the litter box can signal an emergency. Seek veterinary care promptly instead of repeatedly moving the box.
Product comparison note
What to compare if equipment may help
Prioritize accessible entry, enough box space, and litter your cat already accepts. No litter brand replaces fixing a poorly located heating vent.
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