Why does your furnace smell

Your furnace is supposed to keep your home comfortable and cozy during the winter season, but a nasty furnace smell can do just the opposite.

You may be wondering what that smell is and where it is coming from. The foul furnace smell must be somewhere in your furnace/duct system and is being circulated throughout the home by your furnace blower fan. The smell could be a variety of things and it is important to be able to distinguish between the dangerous smells and the ones that don’t do much harm.

Dangerous Furnace Smells

The smell of something burning or a strong dusty odour could indicate that there is something on fire. You should immediately check on your furnace and make sure that nothing is smoking or in flames. Your home’s smoke detector should do it’s job in detecting such an issue if it is in working condition, but it is best to check on your own to be certain. A dusty smell is common when turning on your furnace for the first time, but the smell should go away shortly. If the smell persists and does not go away then this could be a sign of it being necessary to clean out or replace your furnace’s air filter. If this does not solve your problem then the next step would be to call a service technician who will be able to help.

If what you are experiencing seems to be the smell of overheated metals or an electric smell, this is a sign that your furnace is too hot or that the airflow has become restricted and is not allowing for heat to escape the system. If this is the sort of furnace smell that you’re experiencing you should shut off the furnace immediately and contact an HVAC technician.

Another smell that is worth worrying about is the stench of rotten eggs. If you can smell the odour of rotten eggs coming from your ventilation system, this is most likely caused by a gas leak. Since natural gas is odourless, this rotten egg-like smell is added to it. In this case, you and everyone in the home should evacuate immediately, turn off the gas at the tank located outside, and make a call to a technician for further assistance. These precautions should also be taken when there is the smell of any other fuel in the home, such as oil.

Other Unpleasant Furnace Odours

The rest of the furnace smell listed below are not caused by the furnace itself, but rather by something that made its way into the system. Most of these smells can be stopped by just cleaning the ducts, but first you must find out what the root of the smell exactly is.

One of the most common of these scents and possibly the one you’ll be least thrilled to find the source of is the scent of small birds or rodents. These small and sneaky creatures often make an unwelcomed visit to the vents and attics of homes. This will lead to the putrid stench of a dead animal lingering through your ventilation system and the rest of your home. The first step would be to remove its remains from the system. Next you should clean out that area of the air ducts and then remove the smell from your home by leaving some doors and windows open to allow air flow.

If the terrible smell you are experiencing is from wastewater or sewage, the root of the scent may be in an open sewer line or broken black-water line somewhere close to an intake used by your furnace. Take a look around the external vents and your furnace to see if that’s the problem. This can be solved by calling a plumber to close off the sewer line.

It is no secret that your beloved house pet, whether it be a cat, dog, or anything in between, can leave some unwanted sights and smells throughout the home. The source of this smell may be from your pet’s urine, waste, or excess hair. If whenever your furnace is running you can sense the smell of pet urine or excrement, you  should look around near any floor level vents. This smell will be picked up if its source is near a vent. This problem is rather easy to solve, just clean up the mess and the smell is gone.

 

If you are in need of assistance with a furnace repair or are looking for a replacement in Ontario, DeMark Home Ontario is here to help. We provide quick and efficient furnace service and replacement performed by our highly trained and experienced technicians. Call us at 647-847-2998 or fill out online request form and we will be happy to assist you with your request.

Easy Rentals...

get total piece of mind with our High Efficiency Furnace and Air Conditioner Rental Program.
Customer Rating of 5.0
based on 28 Google reviews

  • Get A Quote Today! Free in-home estimate!
  • This field is for validation purposes and should be left unchanged.
×

Upgrading to a high-efficiency heating and cooling system offers more than energy savings.

Take advantage of these rebates today!

×

This item comes with absolutely free standard installation. We’ll ensure that the product is completely installed to code and fully functioning prior to leaving.

×

Great news! Receive a brand new digital thermostat absolutely free when renting this HVAC product from DeMark Home Ontario.

×

Great news! When renting a furnace or air conditioner, you’ll get your first 2 months absolutely rent free.

×

Great news! When renting a furnace and air conditioner together, you’ll get your first 3 months absolutely rent free.

×

This product carries a manufacturer warranty and we’re happy to explain it in full to you. Feel free to get in touch with us for more information or see the Warranty Information tab for more information

×

If your order is placed and confirmed by 11am, we can have your HVAC product installed within the same day.

Certain conditions apply, not available on all products.

×

Great news! When renting a qualifying water heater, you’ll get your first 2 months absolutely rent free.

×

This water heater is subject to reduced rental rates based on the DHO discount program. Save money on your bill every single month!

Some conditions apply

×

Save money on this item when buying it along with a qualifying high-efficiency furnace or air conditioner.

Some conditions apply

×

Promotional code can be found on the eFlyer, Brochure or promotional email that you received from us.

*If you are an existing customer please refer to the mail or email that was sent to you after the installation of your equipment as it contains your promotional code. If you are having troubles locating it please call us and one of our Customer Service Representatives will be happy to assist you.

×
  • Please fill out the form below in order to schedule service and be sure that your request will be processed promptly and you will hear back from us shortly.
×

Notice for Power Vent Water Heater Customers

Effective August 2007, gas code requires technicians working on venting to replace black ABS vent pipe with white UL-certified vent pipe.

We will upgrade your venting pipes at no additional cost.

×
  • Forum Registration

  • Forum Rules

    Registration to this forum is free!
    You must abide by the rules and policies detailed below. If you agree to the terms, please check the 'I agree' checkbox and press the 'Register' button below.

    Although the administrators and moderators of DeMark Home Ontario Forum will attempt to keep all objectionable messages off this forum, it is impossible for us to review all messages. All messages express the views of the author, and DeMark Home is not responsible for the content of any message.

    By agreeing to these rules, you warrant that you will not post any messages that are obscene, vulgar, sexually-oriented, hateful, threatening, or otherwise violative of any laws.

    The owners of DeMark Home Ontario Inc reserve the right to remove, edit, move or close any thread for any reason.
×

Login

×