A water heater in a basement.
Specs & FAQ

We make it easy to upgrade to Reservoir.

Specs & FAQ

We make it easy to upgrade to Reservoir.

Transparent, affordable pricing. Installation included.

Transparent, affordable pricing. Installation included.

Across equipment, installation, and service, Reservoir is cost-competitive even with basic water heaters.

Core

Max

Other heat pump water heaters

Price with instant rebates (MA)

$3,950

$5,450

Rebates vary by vendor

Price before rebates

$5,000

$6,500

$5,000–10,000

Installation included

✔

✔

×

Predictive water heating

✔

✔

×

Solar Sync and TOU Sync

✔

✔

×

Home Protection

✔

✔

×

Over-the-air updates for life

✔

✔

×

No-Wait Shower

×

✔

×

Rapid Recovery Boost

×

✔

×

Freeze Detection

×

✔

×

30-amp electrical install

Add $500

✔

For additional charge

Skip the red tape. Over $1,000 in rebates applied directly to your quote.

Skip the red tape. Over $1,000 in rebates applied directly to your quote.

No onsite inspection, no forms, no processing time. You qualify by choosing the product, and the rebate comes straight off your price.

$1,050

$1,200

$1,150

Rebates applied in MA

Rebates applied in NH

Rebates applied in ME

More affordable upfront. More efficient over time.

Water heater type

Upfront cost

Reservoir

$3,950-5,450

Other heat pump water heater

$5,000-10,000

Electric resistance tank

$3,000-6,000

Gas tank

$3,000-6,000

Gas tankless

$5,000-10,000

Tech Specs

Power & Efficiency

Capacity

First Hour Rating: 75 gallons
Nominal Capacity: 47 gallons
Virtual Capacity: up to 150 gallons

Efficiency

UEF: 3.53
Field CoP: variable in Adaptive Mode

Power

240 V
Installable at 120 V

Heating Elements

Ultra-efficient Heat Pump
Incoloy 800 Stainless Electric Element (x2)
Incoloy 800 Stainless Boost Heater

Size & Access

Unit Dimensions

Height: 65.5" (1.66m)
Width: 24.8" (0.63m)
Depth: 22.8" (0.58m)

Room Size

> 700 ft³ (7' x 10' x 10')
or vented with a louvered door

Minimum Access Dimensions

Height: 68.5" (3" of clearance)
Width: 30.7" (6" of clearance)
Depth: 22.9" (6" of clearance)

Sound

Quiet Mode: 42 dBA
Maximum: 48 dBA

Warranty & Longevity

Warranty

10 year hardware warranty
2 year labor warranty, extendable with service plan

Corrosion Control

Anode rod: Adaptive electric

Integrated Controls

Condensate pump
Ultrasonic flow sensor
Leak sensor & shutoff
Thermostatic mixing
Recirculation pump (Max only)

Data

Data: Wi-fi
Update: Over the air (OTA)

Power & Efficiency

Capacity

First Hour Rating: 75 gallons
Nominal Capacity: 47 gallons
Virtual Capacity: up to 150 gallons

Efficiency

UEF: 3.53
Field CoP: variable in Adaptive Mode

Power

240 V
Installable at 120 V

Heating Elements

Ultra-efficient Heat Pump
Incoloy 800 Stainless Electric Element (x2)
Incoloy 800 Stainless Boost Heater

Size & Access

Unit Dimensions

Height: 65.5" (1.66m)
Width: 24.8" (0.63m)
Depth: 22.8" (0.58m)

Room Size

> 700 ft³ (7' x 10' x 10')
or vented with a louvered door

Minimum Access Dimensions

Height: 68.5" (3" of clearance)
Width: 30.7" (6" of clearance)
Depth: 22.9" (6" of clearance)

Sound

Quiet Mode: 42 dBA
Maximum: 48 dBA

Warranty & Longevity

Warranty

10 year hardware warranty
2 year labor warranty, extendable with service plan

Corrosion Control

Anode rod: Adaptive electric

Integrated Controls

Condensate pump
Ultrasonic flow sensor
Leak sensor & shutoff
Thermostatic mixing
Recirculation pump (Max only)

Data

Data: Wi-fi
Update: Over the air (OTA)

Size & Access

Unit Dimensions

Height: 65.5" (1.66m)
Width: 24.8" (0.63m)
Depth: 22.8" (0.58m)

Room Size

> 700 ft³ (7' x 10' x 10')
or vented with a louvered door

Minimum Access Dimensions

Height: 68.5" (3" of clearance)
Width: 30.7" (6" of clearance)
Depth: 22.9" (6" of clearance)

Sound

Quiet Mode: 42 dBA
Maximum: 48 dBA

Warranty & Longevity

Warranty

10 year hardware warranty
2 year labor warranty, extendable with service plan

Corrosion Control

Anode rod: Adaptive electric

Integrated Controls

Condensate pump
Ultrasonic flow sensor
Leak sensor & shutoff
Thermostatic mixing
Recirculation pump (Max only)

Data

Data: Wi-fi
Update: Over the air (OTA)

Power & Efficiency

Capacity

First Hour Rating: 75 gallons
Nominal Capacity: 47 gallons
Virtual Capacity: up to 150 gallons

Efficiency

UEF: 3.53
Field CoP: variable in Adaptive Mode

Power

240 V
Installable at 120 V

Heating Elements

Ultra-efficient Heat Pump
Incoloy 800 Stainless Electric Element (x2)
Incoloy 800 Stainless Boost Heater

Frequently Asked Questions

Product

Why should I care so much about my water heater?

How can Reservoir have more features and higher efficiency?

Does Reservoir have a heat pump?

Does Reservoir help prevent water damage?

What harmful bacteria does Reservoir prevent?

Does the No-Wait Shower save water?

How does Reservoir prevent its tank from corroding and failing?

Why should I care so much about my water heater?
How can Reservoir have more features and higher efficiency?
Does Reservoir have a heat pump?
Does Reservoir help prevent water damage?
What harmful bacteria does Reservoir prevent?

Operation

What are the different modes I can use with Reservoir?

Can I operate Reservoir without the Reservoir Home app?

Is Reservoir quiet? How does it compare to other appliances?

Does Party Mode use more energy?

Can I sync Reservoir with my solar panels?

Can Reservoir use my utility’s time of use electric rates to lower my bill?

Will Reservoir cool or dehumidify my space?

What are the different modes I can use with Reservoir?
Can I operate Reservoir without the Reservoir Home app?
Is Reservoir quiet? How does it compare to other appliances?
Does Party Mode use more energy?
Can I sync Reservoir with my solar panels?

Installation

When is Reservoir available? Why are you starting your first installs in Boston?

Does Reservoir qualify for any incentives?

What water heaters can Reservoir replace?

Can I install Reservoir on a standard 120 V plug?

Where can Reservoir be installed? How much space do I need?

Why do you include installation in your price when other companies don’t?

When is Reservoir available? Why are you starting your first installs in Boston?
Does Reservoir qualify for any incentives?
What water heaters can Reservoir replace?
Can I install Reservoir on a standard 120 V plug?
Where can Reservoir be installed? How much space do I need?

Get started with a free, no-obligation online Virtual Assessment.