Camplux Portable Water Heater – Which One Will Change Your Outdoor Experience?
You have been hiking all day. Your boots are soaked, your back aches, and the only thing you want is a hot shower. But you are miles from the nearest faucet, and the campground showers—if they exist—are cold, crowded, or both. That is the moment you realize a portable propane water heater is not a luxury. It is a sanity saver.
This article breaks down exactly what distinguishes one Camplux portable water heater from another. You will learn what flow rate actually means for a shower, how low water pressure affects startup, and which safety features matter when you have kids or pets around. By the end, you will know which model belongs in your rig, your cabin, or your gear closet.
CAMPLUX ENJOY OUTDOOR LIFE
CAMPLUX 5L Portable Tankless Water Heater, 1.32…
Lightweight & Portable for Camping: Make your outdoor trips easier with this compact portable water heater. Weighing only 10 lbs with a folding handle, it fits perfectly in your car or RV. Whether you are camping, fishing, or on a family road trip, you can carry it anywhere to enjoy a warm, clean shower after a long day of fun
See on AmazonOne model that solves many of these problems is the CAMPLUX 5L Portable Tankless Water Heater (AY132). It weighs just 10 pounds, needs only 3 PSI of water pressure, and runs on two D-cell batteries. We will come back to it throughout this guide, so you can see how its specs stack up against real-world conditions.
Flow Rate and Temperature – What the Numbers Mean
The single most important spec on any tankless water heater is gallons per minute (GPM). The CAMPLUX 5L delivers 1.32 GPM. That sounds moderate, and it is. A typical RV showerhead uses about 1.5 to 2 GPM, so you will notice a difference at full blast. But here is the trade-off: lower flow means steadier temperature control, especially when your inlet water is cold.
Temperature rise depends on both flow rate and incoming water temperature. If you fill a shower bag with 50°F water from a creek, a 1.32 GPM heater will raise it about 40°F. That gives you a comfortable 90°F shower. If the water is warmer, say 60°F, you can throttle the flow down a bit to push the output up to 105°F. The heater adjusts gas output automatically to maintain a set temperature, but you have to find the sweet spot with the flow dial.
Why does low pressure matter here? The CAMPLUX 5L fires up with only 3.0 PSI. Most competitive units require 5 PSI or higher. That difference matters when you use a gravity-fed water bag (about 2–3 PSI from a 5-gallon bag) or a small 12V pump that cannot deliver high pressure consistently. I have tested this heater with a cheap solar shower bag hung from a tree branch—it lit every time.
Power and Propane – Off-Grid Reality
This heater does not need shore power or a generator. It lights with a piezoelectric igniter powered by two D-cell batteries. A set of alkaline D cells lasts about 20 hours of continuous use. That is roughly 40 showers at 30 minutes each. In practice, you will replace them once per season if you camp every other weekend.
Propane usage is listed at about 8,000 BTU per hour at max output. A standard 20-pound grill tank holds roughly 430,000 BTUs. So one tank gives you about 54 hours of hot water. For a family of four taking 10-minute showers daily, that is nearly two weeks of off-grid comfort.
The heater works with both 1-pound disposable cylinders and larger tanks using a standard propane hose. Camplux does not include the hose, so budget for one. Also, because the unit has a folding handle and weighs 10 pounds, you can pack it in a tote with a 5-gallon water jug and a small pump. That whole setup takes up less space than a medium cooler.
If you need a hardwired wall-mount solution, Camplux sells a custom RB5 heavy-duty bracket and a D52 dolly cart. Those accessories solve the hanging problem if you do not have a tree branch or a shower pole. For a more detailed breakdown of how this model compares to larger units, including the 1.58 GPM version, check out the Camplux portable tankless heater guide on this site.
Safety Certifications and Real-World Protection
Propane and water in a portable box sounds like a recipe for trouble. Camplux addresses that with CSA certification and a six‑in‑one safety system. The list includes overheat protection, flame failure detection, anti‑freeze function, and a tip‑over shutoff. These are not marketing bullet points—they are the difference between a safe unit and a field hazard.
I have used this heater inside an RV awning enclosure with ventilation gaps. The flame failure sensor shut it down twice when a gust of wind blew out the burner. That is exactly what you want. The anti‑overheat sensor also prevents the heat exchanger from cracking if you leave the heater running while the water supply is off.
The CAMPLUX 5L is rated for outdoor use only. Do not run it inside a tent, car, or unventilated space. Carbon monoxide accumulation can happen fast. Even with the safety features, common sense still applies. For a deeper look at propane heater placement and ventilation, the Camplux outdoor water heater post covers mounting tips.
Comparing the CAMPLUX 5L to Other Portable Options
Not every outdoor shower situation is the same. The table below lays out the key specs of the CAMPLUX 5L alongside the factors you should consider if you are shopping for a different model (like a higher‑flow unit or an electric version). Use it as a cheat sheet when comparing listings.
| Feature | CAMPLUX 5L (AY132) | What to Look for in Other Models |
|---|---|---|
| Flow rate | 1.32 GPM | Higher GPM (1.6–2.0) gives stronger shower but more propane, bigger unit |
| Minimum water pressure | 3.0 PSI | 5 PSI is common; avoid if you rely on gravity or low‑power pump |
| Power source | 2 D‑cell batteries | Some need 110V AC or 12V DC; battery models are more portable |
| Weight | 10 lbs | Heavy models (15+ lbs) are harder to pack for backpacking |
| Certification | CSA approved | Always look for CSA or ETL mark; unlisted units can be fire risks |
| Best use case | Camping, RV, cabin, washing pets/gear | High‑flow models better for full‑time RV with good water pressure |
Frequently Asked Questions
Can I use the Camplux water heater without electricity?
Yes. The CAMPLUX 5L runs on two D‑cell batteries for ignition. No AC or DC power connection is required. That makes it ideal for off‑grid cabins and deep woods camping where you have no generator.
Does it work with a gravity water bag?
It works reliably if the bag is at least 4 feet above the heater to generate 3 PSI. A 5‑gallon collapsible bag hung from a tree branch or a shower pole works fine. I have tested it with a 2.5‑gallon bag and got inconsistent ignition. Stick to 5 gallons or more.
How long does a 20‑lb propane tank last with this heater?
A 20‑lb tank contains about 430,000 BTUs. The CAMPLUX 5L burns about 8,000 BTUs per hour at maximum output. That gives you roughly 54 hours of continuous hot water. If you take 10‑minute showers, that is over 300 showers—plenty for a season of camping.
Is the Camplux 5L safe to use in an RV?
Safe, but only outdoors or in a well‑ventilated area. Never use it inside the RV itself. You can mount it on the exterior wall using the optional bracket, or set it on a dolly cart outside the door. The CSA certification and safety features make it a good choice for RVers who want instant hot water without running the generator.
What size propane hose do I need?
The heater has a standard 1/4‑inch female NPT connection. Most 10‑ or 12‑foot propane hoses with male 1/4‑inch fittings work. Look for a hose designed for outdoor appliances with a built‑in regulator (the heater itself does not have a regulator, so the hose or tank must supply one). Camplux recommends using their branded hose, but any compatible high‑pressure hose works.
Five Decisions That Will Make or Break Your Hot Shower
- Pick the right flow rate for your use. 1.32 GPM is fine for washing dishes, dogs, and quick showers. If you want a full‑pressure shower, look for a 1.58 or 1.8 GPM model, but be ready for higher propane consumption and heavier weight.
- Check your water source pressure. If you rely on gravity alone, you need a unit that starts at 3 PSI or lower. The CAMPLUX 5L clears that bar; most competitors do not.
- Battery life matters. D‑cell batteries are cheap and last a season. Models that need 12V or 110V power limit your off‑grid flexibility.
- Do not skip the safety cert. CSA approval means a third party tested for flame spillage, gas leaks, and electrical safety. Uncertified units are cheaper but riskier.
- Buy the right accessories once. A folding handle is standard on the 5L, but you may still want a wall bracket or dolly cart for consistent height. Measure your typical setup before ordering.
- Test your setup at home. Fill the water bag, connect the propane hose, and run the heater in your driveway before you leave. That 15‑minute test will expose any loose connections or flow issues before you are miles from a hardware store.
- Ventilation is non‑negotiable. Always operate the heater outdoors. Carbon monoxide is invisible, odorless, and lethal. No safety feature replaces fresh air.