To serve you better, we remain open 24/7 during the COVID-19 outbreak. Learn More

Water Heater FAQ

1 Star2 Stars3 Stars4 Stars5 Stars

Do you have a question about the safety, reliability or efficiency of your water heater?

Check out our collection of Water Heater FAQ, below. These represent the more common queries our service advisors hear about water heater rentals.

The answers provided are direct from our in-house experts, with a little help from Natural Resources Canada. If you have a different question, or would like more information, call DeMark Home Ontario advisor (647) 847-2998 We’d be glad to assist.

Mixing valve is a valve that connects hot water and cold water copper lines controlling the hot water temperature to prevent scalding. The valve allows tanks to heat your water to 60 degrees Celcius (bacteria-killing temperature), and then cools water to 49 degrees Celsius, once the water exits the tank. This effectively prevents scalding, for reliable, everyday use in your home. It is an option that you have as a customer to install a mixing valve which the technician is required to consult you on.

Metal is the most common type of liner. It fits inside the chimney and ensures that the chimney is properly sized. This properly vents the products of combustion from the gas-fired appliances and prevents chimney deterioration. Many masonry chimneys have clay tiles. They are inexpensive, readily available and perform quite well for open fireplace chimneys that are properly maintained. Cast in place liners are lightweight, Castile, cement-like products that are installed inside the chimney forming a smooth, seamless, insulated passageway for the flue gases. They add structural integrity to aging chimneys.

Most commonly it is a metal liner inside your chimney that safely expels hot gases to the exterior atmosphere. A properly installed chimney liner will update your home to the Technical Standards and Safety Authority (TSSA) building standards required for atmospheric/ conventional vent gas water heaters. Moisture from your vented hot water tank needs to be released through you chimney. Chimney liners prevent moisture damage, and in turn, can protect your family from dangerous gas seepage or a house fire. Outdated masonry in your chimney is very susceptible to cracks. A weakened chimney structure may allow carbon monoxide, combustibles, smoke, or acidic gases into the leaving space. Heat from contact with a combustible material poses a fire risk. A metal chimney liner will provide a protective battier between your home hot water tank’s exhaust and the construction materials that surround it. If your home doesn’t not currently have a chimney liner, technician upgrading a hot water heater must properly install a chimney liner to bring your hot water heater up to TSSA standards. Hot water heater will not be upgraded unless a chimney liner is also installed at the same tome or within a short period of time when the weather permits. Chimney liners can cost anywhere between $350 to $600 for the installation, however with Summitt Home Services we will ensure that your chimney liner is fitted with a safe and durable liner for only $2.95 monthly with no any extra charges for the installation.

Many homeowners rent their natural gas water heaters as with renting you enjoy the peace of mind that comes with knowing that you are covered 24/7 if anything goes wrong with it. When it comes to selecting your rental water tank the size is considered to be one of the most important decisions to be made by homeowners. As a customer you need to choose the size that will accommodate the needs of your family and provide you with most reliable service. The right size will ensure sufficient hot water supply while maximizing the efficiency. By asking yourself some of the below questions will help you understand your family’s hot water usage patterns and help you make the right decision in your selection:

  • Does your current water heater keep up to the hot water you require?
  • How old are the children in your home? Teenagers tend to use more hot water.
  • How many dishes and clothes are washed daily?
  • How many bathrooms in your home?
  • Do you use a dishwasher?
  • Do you have a whirlpool bath?

Once you are aware of your family’s hot water usage habits we will help you determine the right tank size for your home and you can also refer to the chart below. Click here to view sizing chart.

Yes. If you are experiencing insufficient hot water due to changes in family size or lifestyle changes, we can replace your current hot water heater to a bigger size free of charge to you as long as the space permits. If your current water heater is now too large due to changes in your family size or lifestyle changes, we can downgrade it to a smaller size also free of charge.

No. You will continue to be billed by Enbridge Gas Distribution and Summitt Home Services water heater rental charges will appear in the Other Companies section of your Enbridge Gas Distribution Bill.

No problem, just like today, hot water tank rentals stay with the home and you have no further obligations or concerns .In Ontario when a home is sold it is standard practice that rental water heaters and their associated agreements are assumed by the new homeowner. Your agreement of purchase and sale will indicate that the water heater is a rental and not part of the home the buyer is buying. Please see your terms and conditions for more details. Be sure to call us when you are moving so we may arrange for the installation of a new Summitt energy efficient water heater in your new home.

All you need to do to minimize scale buildup is perform 2 minutes of maintenance twice a year to flush the scale from the bottom of the water heater tank. Just fill a bucket of water from the drain valve near the bottom of the tank, which will effectively wash away scale and sediment from the inner surface of the tank when done regularly. When the bucket is full, close the valve and dispose of the water outside, and that’s it! Repeat every 6 months and reap the reward of ongoing energy savings!

Summitt water tanks are currently available in the province of Ontario.

Standard hot water heater installation can last between 45 min to 2 hours based on your existing tank type and size.

Summitt Home Services will be responsible for both maintenance and the maintenance costs of your Summitt water heater as long as it is installed in your home and you will not be liable for any costs associated with the maintenance of your hot water heater.

Yes, we will upgrade your ABS piping as it is no longer acceptable per code as a natural gas combustion products vent pipe. This upgrade is free of charge and is included in your standard installation.

Summitt Home Services provides only the highest quality water heaters to its customers. Water heaters available for purchase from big name retailers or even local contractors are manufactured to a lesser quality standard in order to achieve a lower initial sales price to the consumer. These water heaters are inferior products and are likely to have a significantly shorter life span than the water heaters provided by Summitt. In addition, these water heaters are likely to require more frequent and very expensive repair resulting in higher life cycle costs to the consumer. With a Summitt water heater you have the peace of mind that you have the highest quality water heater of its type available, and in the unlikely event that there is a problem with your water heater Summitt will fix it, free of charge, for as long as it is installed in your home. Repair costs can be as high as $695 when you own the equipment, with Summitt Home Services you are fully covered all repairs, parts and labour are included.

Your water heater may be functioning at this time, and you may have experienced few, if any, problems with it. However, if you are like the vast majority of homeowners, you probably had no idea that old water heaters consume up to 30 % more energy. Sediment build-up in your current water heater reduces your energy efficiency by up to 30%, slows down heating time and reduces water output. A New Summitt Home Services Water Heater will use less energy, heat quicker and give you more hot water. In addition you will receive first 2 month free rental and free upgrade of you back ABS piping should you require one.

No, there are no hidden charges.

None. We will absorb all of the costs related to the installation of the new water heater, as well as the removal and disposal of the old one for all standard installations.

For existing Direct Energy customers with a water heater installed before Sept. 15th 2010 or a home built in 2010 there are no cancellation charges.

Your old water heater is returned to your current provider free of charge to you.

No, you do not need to contact your utility or current water heater provider. Your water heater is independent of your utility and your current provider. We will make all necessary arrangements for the return of your existing water heater at no charge to you.

  • 2 MONTHS FREE rent
  • FREE installation and removal of your existing tank
  • NO up-front equipment cost
  • NO hidden charges
  • FREE upgrade your venting pipes at NO EXTRA COST in order to bring you up to current TSSA code
  • FREE maintenance program 24/7/365
  • FREE lifetime service and repairs on all parts
  • NEW Energy Savings water heaters
  • TRANSFERABLE to the next owner should you sell your home
  • Decrease in home insurance

DeMark Home Ontario Inc is partnered with Summitt Home Services to offer customers the best rental services. Your hot water heater will be rented through Summitt Home Services and the rental charge will appear in other companies section of your Enbridge bill.

Customers who currently rent their hot water heaters from Direct Energy installed before September 15th 2010. Customers who own their hot water heaters and customer who are having new installation such as newly build house.


Submit an online request or call us now to get a 2 minute quote over the phone.

(647) 847-2998


No Problem! Get in touch with one of our representatives
by calling (647) 847-2998 or filling out our easy form.


Customer Rating of 5.0
based on 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.


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


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.

  • 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.



Send this to a friend