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Electric and gas water heaters each have strengths. Electric units are simpler and cheaper to install, while gas models heat water faster and often cost less to operate. Your choice depends on existing infrastructure, energy costs, and household hot water needs.
| Metric | Electric Water Heater | Gas Water Heater |
|---|---|---|
| Average Cost | $600 - $1,500 installed | $800 - $2,500 installed |
| Monthly Operating Cost | $40 - $60/month | $25 - $40/month |
| Recovery Rate | 20-25 gallons/hour | 35-45 gallons/hour |
| Energy Efficiency | 95-100% (electric resistance) | 60-70% (standard) to 90%+ (condensing) |
| Best For | Homes without gas lines, smaller households | High-demand households, existing gas infrastructure |
| Installation Requirements | 240V outlet, no venting needed | Gas line, proper venting required |
If your home already has a gas line, a gas water heater typically offers lower operating costs and faster hot water recovery, making it ideal for larger households. If your home is all-electric or you prefer a simpler installation, electric water heaters are reliable and increasingly efficient. For the best of both worlds, consider a heat pump water heater — it uses electricity but is 2-3x more efficient than standard electric resistance heaters.
In Ontario, natural gas is generally cheaper per unit of energy than electricity, making gas water heaters less expensive to operate monthly. However, Ontario electricity rates vary by time of use — heating water during off-peak hours (nights and weekends) can narrow the gap significantly.
Yes, but it may require electrical upgrades. Electric water heaters need a dedicated 240V circuit, which your existing electrical panel may not support without an upgrade. You will also need to cap the gas line properly. A licensed contractor can evaluate your home and provide a quote for the conversion.
A heat pump water heater uses electricity to move heat from surrounding air into the water tank, rather than generating heat directly. This makes it 2-3x more efficient than standard electric resistance heaters. They work best in spaces that stay above 4°C year-round, like heated basements. The upfront cost is higher ($1,500-$3,000) but energy savings offset the premium within 3-5 years.
Find licensed contractors in your area who can help you choose between electric water heater and gas water heater.
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