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APOLLO hybrid electric heat pump water heater isolated on a white background, with digital control display and front connections.

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Hybrid Electric Heat Pump Water Heater

APOLLO Heat Pump Water Heater – R513A Hybrid Electric

Capacity: 50 or 80 US gal

High-efficiency hot-water storage with hybrid electric technology, quiet operation and two capacity options.

Capacity
50 US gal
$1,799

Shipping$342Free

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Product details

  • 50- and 80-gallon capacity options
  • High-efficiency COP 5.12
  • Demand-response ready
  • R513A refrigerant with GWP below 700

APOLLO Heat Pump Water Heater – High-Efficiency Hot Water for Your Home

Upgrade your household hot water with the APOLLO Heat Pump Water Heater, a hybrid electric system that combines heat-pump technology with electric water heating. Designed to replace a conventional electric storage tank, it brings efficient water heating, quiet operation, and convenient hot-water storage together in one appliance.

Available in 50- and 80-US-gallon capacities, APOLLO gives you two storage options for your home. With a COP of 5.12, operation below 49 dBA, R513A refrigerant, and a demand-response ready design, it offers a practical way to modernize your hot-water system.

An Efficient Upgrade from a Conventional Electric Tank

A conventional electric water heater relies on resistance heating to heat the water inside its tank. A heat pump water heater uses electricity to transfer heat from the surrounding air into stored water.

The APOLLO hybrid electric design brings these technologies together, making it an appealing upgrade for homeowners replacing an older electric storage tank or planning a new hot-water installation.

Its COP of 5.12 highlights the efficiency of its heat-pump operation. COP measures the relationship between useful heat delivered and electrical energy consumed—a higher COP means more heat delivered for each unit of electrical energy.

Choose Between 50 and 80 Gallons

Hot-water storage is an important part of planning your system. The APOLLO Heat Pump Water Heater is available in two capacities:

  • 50 US gallons — the smaller storage option in the APOLLO range.
  • 80 US gallons — additional stored hot-water capacity for applications with greater demand.

Both options bring the same core product features into a hybrid electric water-heating design, allowing you to choose the storage capacity that suits your installation.

Quiet Operation for Everyday Comfort

Water-heating equipment is part of your home’s daily routine. With a sound level below 49 dBA, the APOLLO Heat Pump Water Heater combines quiet operation with high-efficiency performance.

Its upright tank design and front digital display give the appliance a clean appearance while keeping the control interface visible and accessible.

R513A Refrigerant and Demand-Response Readiness

The APOLLO uses R513A refrigerant with a global warming potential below 700 as part of its heat-pump system.

It is also demand-response ready, adding energy-management capability to its combination of efficient water heating and storage. These features make APOLLO a compelling option for homeowners looking to modernize their electric hot-water equipment.

Key Benefits

  • Hybrid electric technology combining heat-pump and electric water heating
  • COP 5.12 for high-efficiency heat-pump performance
  • 50- or 80-gallon capacities to suit different storage requirements
  • Quiet operation below 49 dBA
  • R513A refrigerant with GWP below 700
  • Demand-response ready design
  • Front digital display for a clear, accessible interface
  • Designed to replace a conventional electric storage tank
Heating type
Hybrid electric heat pump water heater
Refrigerant
R513A
Refrigerant GWP
Below 700
Coefficient of performance (COP)
5.12
Sound level
Below 49 dBA
Demand-response ready
Yes

Answers

Frequently asked questions

What is a heat pump water heater?

A heat pump water heater uses electricity to move heat into stored water. The APOLLO is a hybrid electric model designed to replace a conventional electric storage tank.

What capacity options are available?

The APOLLO Heat Pump Water Heater is available in 50- and 80-US-gallon capacities.

How efficient is the APOLLO Heat Pump Water Heater?

The APOLLO product materials list a coefficient of performance (COP) of 5.12.

How loud is the unit?

The APOLLO Heat Pump Water Heater operates below 49 dBA.

What refrigerant does it use?

The APOLLO uses R513A refrigerant with a global warming potential (GWP) below 700.

Is the APOLLO demand-response ready?

Yes. The APOLLO Heat Pump Water Heater is demand-response ready.

Installation help and contact

Need an installer?We made it easy for you.

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Any questions?Reach out to us.

Our team can help with product questions, sizing guidance, and next steps.