The Three Types, Straight Up
Standard Tank (Electric)
Cost installed: $1,200-$2,000. Lifespan: 8-12 years. Almost every Nova Scotia home already has one of these, since gas isn't a major residential heating fuel in the province. Cheapest upfront, but the highest ongoing electricity cost of the three.
Tankless (Electric)
Cost installed: $2,500-$4,000, often more if your electrical panel needs an upgrade to handle the load. Lifespan: 15-20 years. Frees up space and never runs out of hot water, but the panel-capacity requirement catches a lot of older Nova Scotia homes off guard.
Heat Pump (Hybrid)
Cost installed: $2,500-$4,500 before rebate. Lifespan: 10-15 years. Uses roughly a third of the electricity of a standard electric tank, and with Nova Scotia Power's rate as high as it is, that difference shows up on the bill faster here than in provinces with cheaper power.
| Type | Installed cost | After NS rebate | Lifespan |
|---|---|---|---|
| Standard tank | $1,200-$2,000 | $1,200-$2,000 | 8-12 yrs |
| Tankless | $2,500-$4,000 | $1,000-$4,000* | 15-20 yrs |
| Heat pump | $2,500-$4,500 | $1,000-$4,500* | 10-15 yrs |
*Up to $2,500 rebate applies to efficient home water heating systems — confirm your specific unit qualifies before you buy.
Sizing It Right
Tank sizing (by household size)
- 1-2 people: 30-40 gallons
- 3-4 people: 40-50 gallons
- 5+ people: 60-80 gallons
Tankless sizing (by flow rate)
Size to your peak simultaneous demand: shower, kitchen tap, and dishwasher running at once, not average use. Undersizing is the most common tankless complaint, and it usually shows up the first time two people in the house shower back to back.
Who Qualifies for the Rebate
- You own your home in Nova Scotia
- You're installing an efficient water heating system, which can include a qualifying heat pump or high-efficiency tankless unit
- Confirm your exact model qualifies before purchase, since not every unit meets the efficiency threshold
What to Ask Before You Sign
- "Does this specific model qualify for the rebate, or only some models in this category?"
- "Will you file the rebate paperwork, or do I need to?"
- "Does my electrical panel need an upgrade for this unit?"
- "What's the real installed cost after the rebate?"
The One Number That Matters
Nova Scotia Power's rate sits around 19 cents per kWh, among the highest residential electricity rates in Canada. A heat pump water heater cuts water-heating electricity use by roughly two-thirds compared to a standard electric tank, which at that rate saves more per year in Nova Scotia than the same swap would in most other provinces.