In these tankless water heater for pets reviews we score four heaters for home pet wash stations: two electric point-of-use units for indoor tubs and two outdoor propane units for backyard or barn rinsing. We looked at how steady the temperature stays, how much flow a sprayer gets, how easy they are to install and how safe they are around animals.

All four were scored on the same criteria using manufacturer specifications and owner feedback. For our shortlist see the best tankless water heater for pets guide; our Editorial Policy explains how we work. Outdoor propane units must only be used outdoors.

Top 3 Pet Wash Tankless Heaters From Our Reviews

Highest Overall ScoreCAMPLUX TE06ProN2 6kW 240V Point-of-Use Tankless Water Heater

CAMPLUX TE06ProN2 6kW 240V Point-of-Use Tankless Water Heater

  • 6kW
  • Precise temp
  • Indoor
Check Latest Price
Best OutdoorCAMPLUX Climatech 5 WA528M-LP Outdoor Propane Tankless Water Heater

CAMPLUX Climatech 5 WA528M-LP Outdoor Propane Tankless Water Heater

  • 6.4 GPM
  • Propane
  • CSA
Check Latest Price
Best 120VThermoMate ET035 3.5kW 120V Point-of-Use Tankless Water Heater

ThermoMate ET035 3.5kW 120V Point-of-Use Tankless Water Heater

  • No 240V
  • Compact
  • Sink use
Check Latest Price

As an Amazon Associate we earn from qualifying purchases.

How We Scored Pet Wash Tankless Heaters

CriterionWeightWhat we look at
Temperature stability30%Holding lukewarm temps
Flow for rinsing25%GPM at the sprayer
Install20%Circuit, venting, outdoor use
Safety15%Overheat protection, placement
Versatility10%Indoor, outdoor, off-grid
Water heaterScoreBest for
CAMPLUX TE06ProN28.7/10Indoor tubs
CAMPLUX Climatech 58.4/10Backyard rinse stations
ThermoMate ET0358.0/10120V utility sinks
CAMPLUX 4.22 GPM with pump7.8/10Off-grid or barn use

Pet Wash Tankless Heaters Compared

#ProductKey Features
1CAMPLUX TE06ProN2 6kW 240V Point-of-Use Tankless Water Heater
CAMPLUX TE06ProN2 6kW 240V Point-of-Use Tankless Water Heater
  • 6kW
  • 1.5 GPM
  • 85–131°F
Check Latest Price
2CAMPLUX Climatech 5 WA528M-LP Outdoor Propane Tankless Water Heater
CAMPLUX Climatech 5 WA528M-LP Outdoor Propane Tankless Water Heater
  • Up to 6.4 GPM
  • Outdoor
  • CSA certified
Check Latest Price
3ThermoMate ET035 3.5kW 120V Point-of-Use Tankless Water Heater
ThermoMate ET035 3.5kW 120V Point-of-Use Tankless Water Heater
  • 3.5kW, 120V
  • 86–131°F
  • Self-modulating
Check Latest Price
4CAMPLUX BD422P120 4.22 GPM Outdoor Propane Tankless with Pump Kit
CAMPLUX BD422P120 4.22 GPM Outdoor Propane Tankless with Pump Kit
  • 4.22 GPM
  • 3.3 GPM pump
  • Off-grid
Check Latest Price

As an Amazon Associate we earn from qualifying purchases.

1. CAMPLUX TE06ProN2 6kW 240V Point-of-Use Tankless Water Heater

Highest Overall Score: 8.7/10

CAMPLUX TE06ProN2 6kW 240V Point-of-Use Tankless Water Heater
Pros
  • 6kW, about 50°F rise at 1 GPM (per maker)
  • Temperature 85–131°F
  • Self-adjusting power input
  • Separated water line limits leaks and corrosion (per maker)
  • CSA approved
Cons
  • 240V circuit needed
  • Sink or small-tub flow
  • Power: 6kW, 240V
  • Model: TE06ProN2
  • Flow: up to 1.5 GPM
Check Latest Price

CAMPLUX’s 6kW unit scored highest for holding a set temperature at a typical dog-wash flow.

It mounts beside the tub.

Who the CAMPLUX TE06ProN2 fits best

Indoor pet tubs.

Who should skip the CAMPLUX TE06ProN2

Outdoor stations.

Check Latest Price on Amazon

As an Amazon Associate we earn from qualifying purchases.

2. CAMPLUX Climatech 5 WA528M-LP Outdoor Propane Tankless Water Heater

Best Outdoor: 8.4/10

CAMPLUX Climatech 5 WA528M-LP Outdoor Propane Tankless Water Heater
Pros
  • Up to 6.4 GPM
  • Outdoor installation, no indoor venting
  • CSA certified
  • Serves 3–5 outlets
Cons
  • Propane only
  • Outdoor freeze care needed
  • Fuel: propane
  • Model: WA528M-LP
  • Install: outdoor
Check Latest Price

The Climatech 5 is a full outdoor unit for a backyard rinse station or kennel.

Drain it before freezing weather.

Who the CAMPLUX Climatech 5 fits best

Backyard and kennel rinse stations.

Who should skip the CAMPLUX Climatech 5

Indoor use.

Check Latest Price on Amazon

As an Amazon Associate we earn from qualifying purchases.

3. ThermoMate ET035 3.5kW 120V Point-of-Use Tankless Water Heater

Best 120V: 8.0/10

ThermoMate ET035 3.5kW 120V Point-of-Use Tankless Water Heater
Pros
  • 3.5kW on 120V, hardwired
  • 86–131°F setting range
  • Self-modulating
  • Cast aluminum element separated from water
Cons
  • 0.4–0.66 GPM only
  • Small dogs or spot washing
  • Power: 3.5kW, 120V
  • Model: ET035
  • Flow: up to 0.66 GPM
Check Latest Price

ThermoMate’s ET035 works where only 120V is available, such as a garage utility sink.

It is best for paws and small pets.

Who the ThermoMate ET035 fits best

Paw and small-pet washing.

Who should skip the ThermoMate ET035

Large dogs.

Check Latest Price on Amazon

As an Amazon Associate we earn from qualifying purchases.

4. CAMPLUX BD422P120 4.22 GPM Outdoor Propane Tankless with Pump Kit

Best Off-Grid: 7.8/10

CAMPLUX BD422P120 4.22 GPM Outdoor Propane Tankless with Pump Kit
Pros
  • 4.22 GPM, 110,000 BTU
  • Includes 3.3 GPM pump and strainer
  • Runs off-grid with propane
  • Portable for barns and cabins
Cons
  • Outdoor use only
  • Pump needs 12V power
  • Fuel: propane
  • Model: BD422P120
  • Flow: up to 4.22 GPM
Check Latest Price

This kit can draw water from a tank or bucket, useful at barns or cabins without plumbing.

Use outdoors only.

Who the CAMPLUX 4.22 GPM with pump fits best

Barns and off-grid sites.

Who should skip the CAMPLUX 4.22 GPM with pump

Daily indoor use.

Check Latest Price on Amazon

As an Amazon Associate we earn from qualifying purchases.

Setting Up a Pet Wash Station

  • Install a thermostatic mixing valve for scald protection.
  • Use lukewarm water and test it first.
  • Outdoor propane units must stay outdoors in open air.
  • Add a drain strainer for fur.

Frequently Asked Questions

Which pet wash heater scored highest?

The CAMPLUX TE06ProN2 scored 8.7/10.

Can I wash my dog outdoors with a propane heater?

Yes with outdoor-rated units used outside only.

Is 120V enough?

For small pets and paws, yes.

What temperature is best?

Lukewarm; ask your vet for guidance.

Final Verdict: Tankless Water Heater for Pets Reviews

The CAMPLUX TE06ProN2 is the best pet wash tankless heater we scored. The Climatech 5 is the best outdoor unit, and the ThermoMate ET035 is the best 120V option.

Overall: CAMPLUX TE06ProN2 6kW 240V Point-of-Use Tankless Water Heater Check Latest Price

Outdoor: CAMPLUX Climatech 5 WA528M-LP Outdoor Propane Tankless Water Heater Check Latest Price

120V: ThermoMate ET035 3.5kW 120V Point-of-Use Tankless Water Heater Check Latest Price

Steady warm water makes pet baths easier.

Looking for something else? Browse all of our Water Heaters guides and the wider Heating & Cooling section.

As an Amazon Associate we earn from qualifying purchases.