CAMPLUX Natural Gas Tankless Hot Water Heater, 5.28 GPM On Demand Natural Gas Water Heater Outdoor, Gray

Price: $649.99 - $599.99
(as of Feb 13, 2026 05:46:16 UTC – Details)

Product description

Specifications & Performance

Gas Supply Natural gas Rated Voltage ‎120V/60Hz Rated Water Output Capacity 20L/min Temp. Rise Range 90~140℉ Water Flow Range（GPM) 2.6 GPM-7.0 GPM Water Pressure Range 7-150 PSI Rated heat input（BTU/Hr) 15,0000 BTU/ Hr Burner Pipe burner

Do I have to buy any parts for installation ?

You need to buy service valve kits and water pipes. Also take into consideration your exhaust diameter from the heater to your actual vent.

What are the connection sizes for the water and gas, and does it come with any adapters?

They are all 3 male 3/4″ NPT.

Can this unit be used for a whole house application? Kitchen sink, vanity, shower and washing machine?

This water heater can be used for 3-4 persons whole home shower and kitchen at one time.

Will this heater be able to reach temperatures of 180F?

No. The unit can be set up to 140F.

Can you use this inside a tiny home?

This is a outdoor installation whole house tankless water heater, but it came with a 3.28 feet remote control, so you can use inside your home.

Comparison

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Customer Reviews

4.3 out of 5 stars 76

4.0 out of 5 stars 547

4.3 out of 5 stars 100

4.3 out of 5 stars 76

4.3 out of 5 stars 100

4.3 out of 5 stars 100

4.3 out of 5 stars 100

Price

$509.99$509.99

$659.99$659.99

$509.99$509.99

$437.24$437.24

—

$399.99$399.99

$509.99$509.99

Gas Options

LP/NG

LP/NG

LP/NG

LP/NG

LP

LP/NG

LP/NG

Color Optoins

White

White

White

White

Grey

White

White

Water Flow

5.28 GPM

6.86 GPM

6.86 GPM

5.28 GPM

4.22 GPM

4.22 GPM

5.28 GPM

Ignition

Electronic ignition

Electronic ignition

Electronic ignition

Electronic ignition

Electronic ignition

Electronic ignition

Electronic ignition

Product Dimension

23.43*14.96*5.91

24.6*16.1*7.1

27.3*14.3*7.28

28.35*16.93*9.06

24.21*14.25*6.69

24.27*14.25*6.69”

27.3*‎10.8″ x 16.7″

Product Weight

31.3 Lbs

47.2Lbs

37.5 Lbs

33.3 Lbs

26.46 Lbs

26.5 Lbs

33.1 Lbs

Installation

Outdoor

Outdoor

Indoor

Indoor

Indoor

Indoor

Indoor

Gas Inlet

NPT 3/4″

NPT 3/4″

NPT 3/4″

NPT 3/4″

NPT 1/2″

NPT 1/2″

NPT 3/4″

Cold Water Inlet

NPT 3/4″

NPT 3/4″

NPT 3/4″

NPT 3/4″

NPT 1/2″

NPT 3/4″

NPT 3/4″

Hot Water Outlet

NPT 3/4″

NPT 3/4″

NPT 3/4″

NPT 3/4″

NPT 1/2″

NPT 3/4″

NPT 3/4″

Flue Pipe Dia

NO NEED

NO NEED

Φ 2.95″

Φ 2.76″

Φ 2.95″

Φ 2.95″

Φ 2.95″

Water Points

Bathroom x 2, Kitchen x 3

Bathroom x 3, Kitchen x 4

Bathroom x 3, Kitchen x 3

Bathroom x 2, Kitchen x 3

Bathroom x 2, Kitchen x 1

Bathroom x 2, Kitchen x 1

Bathroom x 2, Kitchen x 3

Instant Hot Water Heater: Super large water supply, which can provide endless hot water on demand for 2- 3 water points at the same time. Bathroom*3, Laundry room *2, Kitchen *2, Garage*1
Comfortable Bathing Experience: 5.28 GPM hot water flow, precise temperature control, no water temperature sandwich
Premium design and Durable: Adopt pure copper water tank, reduce heat loss, high efficiency and durability; BLDC Variable-Speed fan,prevent back-flow and accidental flame-out
High Energy Efficiency &Compact Design : UEF>81 %, save over 50% of available space,produce more stable hot water compared to tank water heater
Outdoor Installation: No smoke tube design, easy to mount, save time in measuring and punching. Remove the smoke tube, saving 99 USD for a stainless steel pipe and 200 USD labor cost