CAMPLUX WA686M-NG Natural Gas Outdoor Tankless Water Heater, 199,000 BTU

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Product guide

CAMPLUX WA686M-NG Natural Gas Outdoor Tankless Water Heater, 199,000 BTU

CAMPLUX ENJOY OUTDOOR LIFE: CAMPLUX WA686M-NG is an outdoor natural-gas tankless water heater listed at 199,000 BTU. The listing claims up to 8.4 GPM, but also gives a 6.86 GPM delivery figure and says 8.4 GPM is based on water heated to 105°F from a 65°F inlet at 2 GPM. Confirm the intended flow and installation requirements for your home before selecting it.

At a glance

Outdoor installation and natural-gas configuration are specified in the product title and details.
The listing gives both a top-end flow claim and a separate delivery figure, with the higher claim tied to stated inlet and outlet temperatures.
Six protective functions are listed, including freeze, flame-failure, overheat, and low-water-flow protection.
The listing advises draining the unit if ambient temperature falls below 5°F or it will be unused for an extended period.

Price

$559.99Save 20%

Reference price: ~~$699.99~~

Price checked: Nov 14, 2026

View offer

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Pros and cons

Pros

On-demand heating avoids storing a tank of hot water, according to the product description.
The listed protections cover several operating conditions, including low flow, overheating, and flame failure.
Outdoor installation may suit buyers planning an exterior-mounted heater.

Cons

The listed weight is 39 pounds, which should be accounted for when planning mounting and handling.

Technical specifications

12 specifications

Identity
Brand	CAMPLUX ENJOY OUTDOOR LIFE
Model	WA686M-NG

Heating
Listed heat output	199000 british thermal units
Maximum temperature	105 °F
Power configuration	Gas Powered
Maximum flow claim	Up to 8.4 GPM
Other stated delivery rate	6.86 GPM instant hot water on demand

Protection features
Listed protections	Anti-Freezing Protection, Dry Combustion Protection, Flame Failure Protection, High Water Pressure Protection, Low Water Flow Protection, Overheat Protection

Dimensions and installation
Installation type	Outdoor installation
Weight listed	39 pounds
Altitude guidance	it is best used at altitudes below 2000 feet

Appearance
Color	White

What to know before buying

The manufacturer advises draining internal water when ambient temperature drops below 5°F or during extended non-use, despite also claiming active freeze protection. It recommends use below 2,000 feet in altitude.

Listing details to confirm

The listing is inconsistent about capacity: the title says up to 8.4 GPM, the feature text also states 6.86 GPM, and it ties the 8.4 GPM figure to 105°F water at 2 GPM with a 65°F inlet. It also gives conflicting temperature-stability claims of ±0.5°F and ±1°F. Confirm the applicable flow and temperature specifications for this model before purchase.

Who is it for?

A good fit for

Households considering an outdoor natural-gas, on-demand water heater and able to verify its flow capacity against simultaneous hot-water demand.
Buyers who want listed protections such as anti-freezing, flame-failure, and overheat protection.

Less suited to

Buyers who need a confirmed, single flow-rate or temperature-stability specification without checking the model details.
Installations above 2,000 feet where the listing's stated optimal-use guidance may not apply.

CAMPLUX WA686M-NG Natural Gas Outdoor Tankless Water Heater, 199,000 BTU · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 78 ratings

5 stars68%68%
4 stars20%20%
3 stars5%5%
2 stars0%0%
1 star7%7%

Customer feedback describes strong hot-water performance and straightforward installation, while reliability experiences are mixed, including reports that a unit stopped working after two weeks. For buyers considering this outdoor tankless model, favorable performance reports are relevant to its intended on-demand use, but the reliability concerns matter for a major household appliance. The listing's competing flow figures also make it important to confirm the expected output for your installation.

Positive themes

Customers report satisfying hot-water performance.
Customers describe installation as straightforward.

Mixed feedback

Reliability feedback is mixed, with some customers reporting good operation and others saying the unit worked for only two weeks.

Frequently asked questions

What fuel and installation type does the listing specify?

It identifies the WA686M-NG as gas powered and describes it as an outdoor natural-gas tankless water heater.

How much hot water does it provide?

The listing claims up to 8.4 GPM but also states 6.86 GPM. It ties the 8.4 GPM claim to 105°F output from a 65°F inlet at 2 GPM, so confirm the relevant capacity for your conditions.

What should I know about freeze protection?

Anti-freezing protection is listed, but the manufacturer says to drain the unit if ambient temperature falls below 5°F or it will be unused for an extended period.

Does the listing give one temperature-stability figure?

No. It states both ±0.5°F and ±1°F fluctuations, so check which claim applies to this model.