CAMPLUX Gas Tankless Water Heater Indoor 2.64 GPM - Compact Instant

Our review of the CAMPLUX Gas Tankless Water Heater Indoor 2.64 GPM finds it best suited to small homes, cabins and apartments that need an on-demand hot water source without the footprint of a traditional tank. The biggest reason to buy is its compact, space-saving design combined with a useful 2.64 GPM flow rate and a Fahrenheit digital temperature display, which delivers instant hot water while offering energy-saving modes. The unit balances performance and size, though buyers should be prepared for careful installation and occasional temperature fluctuation reports.

Key Features

• Compact design: The 10L tankless housing at roughly 12.8' x 5.91' x 20.28' saves floor and wall space compared with conventional tanks.
• On-demand hot water: Rated at 2.64 GPM, it provides instant hot water for showers and small household tasks without waiting to reheat a storage tank.
• Energy modes: The Eco and Full gas switch lets users choose lower gas use for savings or full output for higher temperatures.
• Safety protections: Built-in flame-out, overheat and air flow pressure switch protection increase operating safety during regular use.
• Easy ignition: Electronic ignition plugs into a standard 120V outlet with a UL-listed cord for straightforward power hookup.
• Standard connections: Uses common 1/2' NPT water fittings and a 1/2' gas inlet so it fits many existing plumbing setups with minimal adapter needs.

Who It's For

This unit is ideal for owners of tiny houses, cottages and small apartments who need instant hot water but lack room for a tank. Its compact footprint, 68,000 BTU input and 2.64 GPM flow make it a practical choice where modest simultaneous demand is expected.

It is less suitable for large families or homes with high simultaneous hot water demand, and buyers who prioritize rock-steady temperature control or long-term heavy-duty durability should consider larger commercial-rated options. Prospective installers should be comfortable sourcing a pressure relief valve and any venting adapters required for their setup.

Pros & Cons

Pros

• Compact footprint that frees up space compared with tank heaters.
• On-demand 2.64 GPM flow delivers near-instant hot water for small households.
• Energy-saving Eco/Full gas switch and Fahrenheit digital display make temperature management straightforward.
• Multiple safety features reduce risk during operation.

Cons

• Some customers report inconsistent temperature maintenance and mixed durability feedback over time.
• Installation can require additional parts like a 150 psi pressure relief valve and possible venting adapters in certain setups.

Specifications

Flow rate	2.64 GPM
Rated heat input	68,000 BTU/hr
Water flow activation	Minimum 0.65 GPM
Water connections	Cold/Hot NPT 1/2'
Flue pipe diameter	2' horizontal vent included
Rated voltage	120V/60Hz

Our Verdict

The CAMPLUX indoor propane tankless heater is a solid value for small-space owners who want instant hot water and a compact installation. It combines useful safety features, an energy-saving gas switch and a clear digital display, but buyers should factor in possible temperature variability and the need for a pressure relief valve and venting adapters during installation. For modest demand and careful installation, it delivers good performance at a reasonable footprint.

Frequently Asked Questions

Do I need extra parts to install this unit?
Yes. A 150 psi pressure relief valve is required and you may need venting adapters depending on your exhaust routing.

What size propane tank works with this heater?
Any tank size can be used as long as the LP pressure supplied to the heater is appropriate; a regulator is recommended.

Is the ignition system hardwired?
No. The heater uses a safe electronic ignition that plugs into a standard 120V outlet with a UL-listed cord.