How to remove urine smells coming from a heating ducted vent?

Our tips

If it is a urine odour and urineFREE can come into contact with the source of the odour, then urineFREE will remove it.

You need to be very careful when applying any liquid with any of electrical appliance including a heater. 

We don’t recommend you pour or spray urineFREE down the ducting.

Follow these steps:

  • First of all turn off the heater.
  • Take a long handled sponge or mop and dampen it with urineFREE and insert it into the ducting and mop out.
  • Let air dry, then rinse the sponge or mop with water and insert into the ducting again to remove any residue.
  • Let dry again. Once dry turn on the heating and see if the smell is gone.
  • Repeat if necessary.


We are assuming an animal has urinated into the ducting and hopefully urine hasn’t travelled very far so you can get it all. If it has travelled to points unreachable by the sponge to mop, you may need to get in a professional who has the equipment to reach further into the ducting. 

urineFREE must make contact with all the urine to be 100% effective.

Recommended product

  • urineFREE 2 Litre Refill — Household & Pet

    $54.95 GST
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All-in-one stain & odour remover

Why? urineFREE is an all-in-one urine stain & smell remover that removes all urine — cat urine, dog urine, other pet & human urine.

  • urineFREE is guaranteed to work as directed or your money back
  • urineFREE is 20% more concentrated than other brands
  • We added additional bio-enzymes to urineFREE for faster action
  • urineFREE contains a powerful odour counteractant for immediate relief
  • urineFREE is environmentally friendly and non-toxic

urineFREE “eats up” the uric acid

Some general cleaners can remove the water soluble components of urine (urea and urochrome) but leave behind the non-soluble uric acid crystals that retain the odour and stain. These crystals attach to surfaces and are very difficult to dislodge. Any humidity or dampness will trigger the dormant crystals bringing back the odour.

urineFREE’s bio-enzymatic formula “eats up’’ the uric acid crystals whilst removing the urea and urochrome components, eliminating both the urine stain AND the odour for good.

All-in-one product

urineFREE is a powerful urine stain AND smell remover. It works on all types of urine, whether pet or human — guaranteed to work or your money back! Our product is 20% more concentrated than other products, and contains a bacteria that eats up the uric acid crystals, which are the main culprit when it comes to urine smells and stains.

Ethical brand

We are a conscious business because we care. We care about the environment and your health, so our products are non-toxic and safe to use around your family and pets. They are also eco-friendly, septic tank safe, and won’t hurt the planet. Because we also care about our animal friends, our products are vegan and cruelty free.

Proven results

Trust a product tried and tested by hundreds of happy customers. If you think urineFREE sounds too good to be true, read our reviews or contact our friendly customer service. If you’re not 100% happy with the product, we will give you your money back (guaranteed)!

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