CAMPLUX Propane Tankless Water Heater, 3.18 GPM On Demand - Compact

In this review of the CAMPLUX propane tankless water heater the bottom line is simple: it is a compact indoor on-demand heater that suits small homes, cabins and apartments where space and quick hot water matter most. The unit delivers up to 3.18 GPM and is built to heat quickly with a copper heat exchanger and stainless burner, so the main reason to buy is immediate hot water without a bulky 50 gallon tank taking up space.

Key Features

• Instant hot water: Delivers about 3.18 GPM to support two light outlets or one heavy outlet with near-instant heat for showers and sinks.
• Precise temperature control: The 2 F temperature control keeps outlet temperature stable so users experience fewer cold swings during normal flow.
• High heating efficiency: Oxygen-free copper heat exchanger and V-type stainless steel burner provide high transfer efficiency and fast heat-up in seconds.
• Compact indoor design: At roughly one sixth the size of a 50 gallon tank heater it frees up laundry or utility space in small homes and apartments.
• Simple plumbing connections: Uses G 1/2" gas inlet and NPT 1/2" water fittings and includes a 2.3" horizontal vent pipe for straightforward installation.

Who It's For

The CAMPLUX unit is best for owners of small houses, remote cabins or apartments who need a space-saving indoor heater capable of supplying hot water for one to two points at once. It suits renters and DIY installers who want a straightforward hookup with common 1/2" fittings and who value fast warmup and compact footprint.

Those who need heavy simultaneous demand for multiple full-flow showers, or who require long-term commercial durability, should consider a higher-flow tankless model or a larger capacity tank system instead. Also plan to buy a 150 psi pressure relief valve and any exhaust adapters or propane connectors required for your specific venting setup.

Pros & Cons

Pros

• Compact, space-saving design that replaces a large tank in cramped spaces.
• Fast heat-up and good efficiency thanks to copper exchanger and V-type burner.
• Relatively easy installation with standard 1/2" water and gas fittings and included horizontal vent piece.
• Precise temperature control that can reduce cold shock when flow is steady.

Cons

• Customers report occasional temperature swings under changing flow, so consistency depends on installation and water pressure.
• Some buyers noted durability concerns over long term use, so expect to monitor maintenance and components.

Specifications

Rated Voltage	120V/60Hz
Rated Water Output	12 L/min (about 3.18 GPM)
Temp. Rise Range	95F - 149F
Water Flow Range	2.14 - 4.19 GPM
Water Pressure Range	3.6 - 150 PSI
Gas Supply	Liquid Propane, G 1/2" inlet

Our Verdict

The CAMPLUX propane tankless heater is a practical, space-saving solution for small residences and cabins that need quick hot water without a large tank. It offers high heating efficiency and useful 2 F temperature control, but buyers should ensure proper venting, add the required pressure relief valve and accept that heavy simultaneous demand or very long-term durability could require a different system.

Frequently Asked Questions

Do I need extra parts to install this heater?
You should buy a 150 psi pressure relief valve and check your exhaust diameter for adapters; a propane regulator and a gas connector may be needed for tank hookup.

How many fixtures can it support at once?
It delivers about 3.18 GPM, sufficient for one shower plus a sink or two light fixtures, but not for multiple full-flow showers simultaneously.

Is it suitable for indoor installation?
Yes, this model is designed for indoor use with a 60 mm flue pipe and includes a horizontal vent piece; follow local code and use a wall thimble if required.