Need to replace your central heating system?
Opt for the purchase and installation of an electric thermal storage heating system combined with a central heat pump and receive $22,000 in financial assistance from Hydro‑Québec
Note:
Stay in the know about the launch of the LogisVert Efficient Homes Program before having an electric thermal storage system installed. To learn more, contact one of the companies on the Liste des entreprises autorisées Steffes [PDF 136 kB – in French only].
However, if you have already had an electric thermal storage system installed, please click on the “Financial assistance” tab and follow the instructions in Step 2 to obtain your rebate.
Less well known in Québec, electric thermal storage (ETS) is a technology that has been in use for a number of years in areas where dynamic pricing is available.
Since April 2023, Hydro‑Québec is offering financial assistance worth $15,000 to customers who wish to have a central heating ETS system installed.
An additional $7,000 is also available if energy-efficient central heat pump is installed at the same time as an ETS system.
Who is this technology for?
Central heating with electric thermal storage is for customers wishing to replace their fuel‑burning central heating system with an electric one, as well as those who need to invest in a new system.
What is a central heating ETS system?
It’s a fuelless central heating system with the defining feature of storing heat in a thermal mass.
During peak demand events, the system is programmed to stop powering the electric elements and the house is heated by the accumulated heat in the bricks.
Image of an electric thermal storage system with the following components:
- 1Exchanger for heat pump (optional)
- 2Insulation
- 3Thermal mass
- 4Electric elements
- 5Fan
What’s the difference between common heating systems?
When there is a demand for heat, this type of system draws on heat that’s been stored in a thermal mass made from high-density ceramic bricks. These bricks are heated to a high temperature using electric elements. However, during peak demand events, the system is programmed to turn off these elements and the house is heated using only the stored heat. Result? During these short periods, you stay cozy and warm while using a lot less electricity during peak periods.
What’s more, with dynamic pricing (Rate Flex D), you can lower your electricity bill by reducing your electricity use during peak demand events, without any sacrifice to comfort.
When the temperature drops to a certain point, the thermostat activates the electric heating elements and fan to heat the house. A significant amount of electricity must therefore be used to keep the air warmed.
This type of system heats the air by drawing on two energy sources: electricity as the main source, and some form of fuel as the backup source. Most of the time, the house is heated when the thermostat activates the electric heating elements and fan. However, when the temperature reaches a specific threshold (based on the region), the system switches to the backup heat source, which runs on a fuel like oil, propane or natural gas. Since the electric heating elements are not in use at that time, you use much less electricity.