The future of hot water
Three smart ways to drop gas and electrify your hot water — heat pump water heaters, electric tanks, and Sunamp thermal batteries.
Why electrify your hot water?
Hot water is about 20% of a typical home's energy use. Switching off gas cuts emissions, lowers bills, and removes one more combustion appliance from your home.
Cut emissions at home
Eliminate gas combustion and the methane leaks that come with it. Hot water alone is a major share of household emissions.
Lower operating costs
Heat pump water heaters use roughly a third of the energy of resistance electric, and qualify for rebates that lower up-front cost.
Safer home
No combustion means no carbon monoxide risk, no pilot light, and no venting through your roof.
Cleaner indoor air
No gas appliance means no combustion byproducts inside your home — better air quality, especially in tight modern builds.
Reliable hot water
Modern electric and heat pump systems deliver consistent hot water without the recovery dips of older gas units.
Ready for a fully electric home
Switching water heating is one of the biggest steps toward an all-electric home and decommissioning your gas service.
Three ways to heat water without gas
The right choice depends on your space, hot-water demand, and how much you want to save.
Heat Pump
The most efficient option — uses ambient heat from the surrounding air to heat your water.
Efficiency
~300%
Footprint
Standard tank
Learn more about Heat Pump →
Electric Tank
Simple, dependable, and the most affordable up front. A direct drop-in replacement for a gas tank.
Efficiency
~100% at unit
Footprint
Standard tank
Learn more about Electric Tank →
Sunamp
A phase-change thermal battery — up to 4× smaller than a tank, with no annual maintenance.
Efficiency
A+ rated
Footprint
Up to 4× smaller
Learn more about Sunamp →
Heat pump water heaters
A heat pump water heater is a tank with a small heat pump on top. Instead of generating heat directly, it pulls warmth from the surrounding air and transfers it into the tank — using about a third of the electricity of a conventional electric heater.
They're the most efficient way to heat water in a home, qualify for the deepest rebates, and as a bonus, gently dehumidify and cool the room they're installed in.
Efficiency
~300% (COP ~3)
Annual savings
~$300–$500 vs. electric resistance
Footprint
Standard tank size
Lifespan
10–15 years
Best for
- Households wanting the lowest operating cost
- Basements or utility rooms with airflow
- Maximizing available rebates
How it works
- 1
A fan pulls warm air from the surrounding room into the heat pump.
- 2
The refrigerant cycle concentrates that heat to a much higher temperature.
- 3
A heat exchanger transfers that energy into the water in the tank.
- 4
Cool, dehumidified air exits back into the room — a small bonus during summer.
Heat pump water heaters
See all →Coming soon — we're adding heat pump water heaters.
Contact us to discuss your options →Electric tank water heaters
A standard electric tank uses a resistance heating element submerged in the tank to heat water directly. It's the simplest, most affordable way to remove gas — and the easiest install.
They're not as efficient as a heat pump, but they fit anywhere, work in any closet or mechanical room, and have the lowest up-front cost.
Efficiency
~100% at the appliance
Up-front cost
Lowest of the three
Footprint
Standard tank size
Lifespan
8–12 years
Best for
- Tight closets or small mechanical rooms
- Lower up-front budget
- Backup or secondary water heater
How it works
- 1
Cold water enters the tank from the bottom.
- 2
Two heating elements (upper and lower) heat the water inside the tank.
- 3
A thermostat maintains the set temperature, cycling the elements on and off.
- 4
Hot water exits from the top of the tank when a tap is opened.
Electric tank water heaters
See all →Coming soon — we're adding electric tank water heaters.
Contact us to discuss your options →Sunamp Thermino
World-leading thermal storage in a fraction of the space
Sunamp Thermino heat batteries are a modern replacement for hot water tanks — up to four times smaller than the equivalent tank, with no annual maintenance and a sleek design that fits in a closet, under stairs, or anywhere a tank wouldn't.
Instead of storing hot water, a Thermino stores heat in a patented phase-change material called Plentigrade P58. When you turn on a tap, cold water from your supply flows through a heat exchanger inside the unit and comes out at shower temperature on demand.
Energy rating
A+ — up to 1,000 kWh/yr saved
Footprint
Up to 4× smaller than a tank
Warranty
10-year on heating element & core
Lifespan
10,000+ verified cycles
Best for
- Apartments, condos, tight closets
- Pairing with solar PV or off-peak tariffs
- Homes wanting a near-tankless feel
What's a phase-change material?
When Sunamp's Plentigrade P58 melts and re-solidifies at 58°C, it absorbs and releases huge amounts of latent heat — storing up to 4× more energy per litre than water. The same idea as a hand-warmer, scaled up into a thermal battery.
Three Thermino models
- e
Thermino e
Direct electric — replaces a standard hot water tank. Schedule charging on off-peak rates or solar.
- i
Thermino i
Indirect — works with boilers or heat pumps, plus a backup electric element for redundancy.
- ∞
Thermino
Boiler-only indirect — the most compact option for homes keeping a high-efficiency boiler.
Works with a wide range of energy sources
Grid electricity
Off-peak / time-of-use
Solar PV
Heat pump
Boiler
Solar + battery
Sunamp Thermino models
See all →Coming soon — we're adding Sunamp Thermino models.
Contact us to discuss your options →Side by side
A quick reference to help you narrow it down.
| Heat Pump | Electric Tank | Sunamp Thermino | |
|---|---|---|---|
| Efficiency | COP ~3 (~300%) | ~100% at unit | A+ rated, very low standby loss |
| Footprint | Standard tank | Standard tank | Up to 4× smaller than a tank |
| Up-front cost | Premium | Most affordable | Premium |
| Operating cost | Lowest | Modest | Low — even lower on off-peak |
| Payback story | Deepest rebates, lowest energy bill | Quickest install to recoup | Up to 1,000 kWh/yr saved + reclaim space |
| Recovery | Moderate | Moderate | Instantaneous on demand |
| Lifespan | 10–15 yrs | 8–12 yrs | 10,000+ cycles verified |
| Warranty | Typically 6–10 yrs | Typically 6 yrs | 10 yrs on element & core |
| Pairs with solar | Good | OK | Excellent |
| Maintenance | Filter rinse + anode | Anode rod | No mandatory annual service |
How we install
Before we install, we make sure your space and electrical panel can support your new water heater.
Choose your water heater
Pick a heat pump, electric tank, or Sunamp unit that fits your home and household size.
Upload your hourly hydro data
Share your hourly electricity usage so we can model your panel load and confirm it can support the new water heater.
Get your estimate
We'll confirm panel capacity, factor in available rebates, and provide a full installation quote.
Not sure which is right for you?
Our team can walk you through heat pump, electric tank, and Sunamp options — and confirm which fits your space and household best.