Solar Domestic Hot Water
Solar Water Heating is one of the most cost effective of all the renewable energy systems for homeowners; only our solar pool heating systems are more cost effective. Solar Water Heating provides the best year-round financial benefit and reduces Greenhouse Gases (GHG) emissions.
Did you know that?
- Solar Hot Water Systems will heat more than 50% of your hot water in the Ottawa area
- Payback, in after tax dollars can exceed 15%/yr
- Solar Hot Water Systems will reduce your GHG output by more than one tonne per year
Comparing costs of heating your water
When you include all costs, Solar is by far the least expensive energy source for heating your water, comparing “apples to apples”.
Energy Source |
Cost/kWh of heat energy |
Total GHGs Produced |
| Solar |
1.5 cents / kWh |
~0 (very small electrical load) |
| Natural Gas |
2.9 cents / kWh |
18.4 tonnes |
| Oil |
4.6 cents / kWh |
25.8 tonnes |
| Electricity |
4.9 cents / kWh |
49.4 tonnes |
| Propane |
8.2 cents / kWh |
20.8 tonnes |
Why EnerWorks ?
Isolara has chosen the EnerWorks Solar Water Heating appliances for three reasons:
- EnerWorks is a CSA-certified system designed and manufactured in Canada for the Canadian climate. These systems have patented components ensuring efficient and safe long-term use.
- EnerWorks systems are built to last. With every system installed by Isolara, we expect 25 years of performance.
- Because Isolara is one of the largest installers of EnerWorks systems, we are able to purchase the collectors and energy packs in volume and offer our customers extremely competitive pricing.
How it Works

Diagram courtesy of EnerWorks
The EnerWorks Solar Domestic Hot Water appliance comes in one-, two-, three-, or four-panel systems. Properly sized for your household it will deliver up to 65% of your hot water needs in the Ottawa area.
Your current hot water tank will act as a backup system when the sun does not shine for extended periods of time. When the two tanks are configured to share the solar heat, you will have double the hot water allowing more sequential showers.
The EnerWorks panels have a patented passive system that will vent excess heat in the summer, even during a power failure.
Get the sun working for you!
Call Isolara: 613-889-2646
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