HVAC Experts Reveal the $1 Incense Trick That's the Secret to Slashing Your AC Bill This Spring

A green green dining room with a jute rug, light wood flooring, and a pale grey table in the centre of the room, surrounded by four green and white patterned chairs. To the right is a white side table, and in the background are large windows with green and white botanical print blinds, with various mismatched plants on the windowsill.

As temperatures rise, so too do air conditioning bills. And, if your windows and doors aren't sealed correctly, you might find them doing so more than usual.

While these costs are an inevitable part of warmer weather, there is one easy and affordable trick you can use to check that your AC is working as efficiently as possible – and all you need is an incense stick.