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Your HVAC system efficiency level. Learn how to save on your energy costs in Toronto area.

No matter if your HVAC system system is old or you have high efficiency furnace and air conditioner, located in a newly purchased or already existing home, an apartment or single-family home, there are many things that can be done to optimize the levels of efficiency in your home.

You can easily decrease your energy usage and it will save you from high costs for years to come.


Whatever time of the year you may find yourself in, keeping comfortable clean air in your house is a must. Things you can do to ensure that clean air is being circulated trough your home are caulking and weather stripping all doors and windows in your home, also sealing chimneys and potential anywhere in your home that air can escape.

Make sure you check your home for damaged shingles, roof damages and worn out or torn barriers as well. This will ensure the proper circulation through your home. Undertaking in semi-annual exterior home inspections during the time you have your HVAC system  check up is the best time.

Don’t forget to get your annual furnace and air conditioner inspection done. If you are currently in the process of conducting restoration or replacements of windows; it would be a great idea to obtain vinyl-or wood- clad also known as thermo pane windows, storm windows and doors. Ensure that these items are closed during heating and air conditioning to ensure proper circulation around your home.

Making sure airflow in and out of your home through your HVAC system is vital. Things like vegetation and debris can block air flow which will force your furnace to work twice as hard. This will increase the ruining cost of your heating and air conditioning system and future maintenance cost.

Inside you Home

Knowing how to properly use your thermostat will benefit you greatly. During the summer season set your thermostat at the highest comfort level and the lowest level during the winter season. Be mindful that a change in one degree changes energy consumption by about 4%. Using humidifiers and dehumidifiers can make a huge difference in how the temperature in your home feels.

If you are away from home for long periods of time; investing in a programmable thermostat will help you automatically adjust temperature while you’re away and prevent your furnace and air conditioner running at unnecessary speeds.

During the summer season when heat is at its highest, keeping cool is the objective. To decrease your air conditioning usage it is also important to know that lights generate indoor heat. Whenever possible replace bulbs and fixtures in your home to fluorescent as it will decrease heat levels in the home. Keeping drapes closed during the hot sunny summer days will reduce heat and in the winter let the sun shine through to help aid in heating your home.

When insulating your attics, basements and other areas throughout your home; make sure they are up to the R value recommended for your area. If you are not sure, your HVAC heating and cooling contractor can inform you on the levels you need. It also important to remember to provide insulation to duct-work that is located in an Un-conditioned area.

HVAC System Maintenance

Conduct filter checks regularly and provide cleaning and replacements when they are needed. Your HVAC heating and cooling contractor can inform you how often maintenance will be needed as this is based off the manufactures recommendations and the air quality conditions in your local area.

Installing zoned system in homes that are two or more stories along with a programmable thermostat in each zone can greatly reduce your energy cost as well.


For a free consultation, estimate or to book your maintenance call please contact us (647) 847-2998

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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.


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

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

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


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.

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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.

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