
VELPAX 110,000 BTU Natural Gas Outdoor
7.0Good · out of 10$349.99 Price on Sep 30, 2026 · may have changed- Stated: 4.76 GPM · 110,000 BTU/h · 110 V
- Gas tankless water heaters

Product images: Amazon listings
Written from the listing's specs, not from our own use · How we rate
We like the VELPAX 110,000 BTU Natural Gas Outdoor for the mix: up to 4.76 GPM, a grab-and-go propane heater and built-in freeze protection. A good match for camping trips, the RV and the outdoor shower, rated 7.0/10 on its documented specs.
| Brand | VELPAX |
|---|---|
| Category | Gas tankless water heaters |
| Fuel | Natural gas |
| Stated mounting location | Outdoor |
| Stated maximum flow | 4.76 GPM |
| Stated gas input | 110,000 BTU/h |
| Stated voltage | 110 V |
| Freeze protection | Stated in the listing |
| Water pressure | From 3 PSI |
| ASIN | B0H2DZVQNR |
Full listing title: Outdoor Natural Gas Tankless Water Heater, 110000 BTU 4.76 GPM Instant Hot Water Heater with Remote Control, 110V 60Hz AC, Low Pressure Startup for Home & RV
| Fuel | Natural GasFull listing title |
|---|---|
| Stated mounting location | OutdoorFull listing title |
| Stated maximum flow | 4.76 GPMFull listing title |
| Stated gas input | 110000 BTUFull listing title |
| Stated voltage | 110VFull listing title |
Two portable propane water heaters close to it on our rating, each with a dated price.



That's the maximum flow the listing states, and headline flows are usually quoted at a mild temperature rise. At 2 GPM a shower (our calculator's figure), that's one person at a time: the kids, then the dog, then you.
What it has going for it
Runs on propane. Screw it to the tank, hook up a garden hose and you have a hot rinse at the campsite, the barn or the beach house. Outdoors only: it burns propane right there with no vent.
Freeze protection. Stated in the listing. Useful in a garage, a crawl space or a cabin that sits empty in winter, as long as the unit keeps power.
At the campsite: it starts from 3 PSI of water pressure, per the listing. That pressure is within reach of a 12 V RV pump.
In the backyard: a garden hose and a 20 lb tank are all it needs. An outside wall works if air moves all around it; never a shed or an enclosed stall.
The seller states, word for word, in the VELPAX 110,000 BTU Natural Gas Outdoor listing:
It works at 3-116 PSI (0.02-0.8 MPa) water pressure with auto-ignition design.
This gas tankless water heater comes with an indoor digital remote control panel equipped with 16.4ft (5m) extra-long connection cable.
Suitable for single-family home indoor bathroom, backyard outdoor shower, RV camper, farm horse & livestock washing.
This gas water heater comes with standard 1/2" NPT threads for water inlet, water outlet and gas inlet port.
That's the seller talking, not us. No listing tells you how it copes with 42 °F water at 6:45 in the morning.

What the VELPAX 110,000 BTU Natural Gas Outdoor listing names:
Read the installation manual for the vent, the gas line size and the clearances before you order; it overrides anything above.

At the price on Sep 30, 2026, each GPM of stated maximum flow works out at about $73.53 (price ÷ stated GPM, our arithmetic). That puts it in the cheaper third of the 7 portable propane water heaters we have a price and a stated flow for.
Count a 20 lb propane tank if you don't have one, and a hose to reach the water.
The button opens the exact listing (ASIN B0H2DZVQNR), where today's price, stock and seller apply.

No outlet out there? The CAMPLUX 5L Portable Propane, 1.32 GPM (7.3/10) lights on batteries, per its listing.
Want the shower head in the box? The Amzgachfktch 1.58 GPM Portable Propane (7.3/10) comes with one, per its listing.
Want to spend less? The LiberLive 5L Portable Propane, 1.32 GPM (7.3/10) was listed at $119.69 on Sep 30, 2026.
Our take
We like the VELPAX 110,000 BTU Natural Gas Outdoor for up to 4.76 GPM and a grab-and-go propane heater. No buyer reviews yet, so this VELPAX portable propane water heater has to win you over on paper. The catch with the VELPAX: no word on the warranty. We'd pick it if camping, the RV or an outdoor shower is the plan; otherwise, put it next to the CAMPLUX 1.58 GPM Portable with Pump Kit first.
Tank, regulator, garden hose: that is the whole install. Pick a spot in the open air, out of the wind.
Open the water, let the burner light, then set the temperature. It needs at least 3 PSI to start, per the listing.
Drain it, disconnect the tank, and store it dry. A unit left full in a cold shed can crack.
Before the VELPAX 110,000 BTU Natural Gas Outdoor ships, check your water pressure: it needs at least 3 PSI to fire up, so check your pump or your hose bib.
It starts from 3 PSI, per the listing. A garden hose off a house tap is usually plenty; an RV pump or a gravity tank is worth checking first.
Check that the regulator and the gas hose come in the box, and keep a spare tank for a long weekend.
Outdoors only, with open air around it. Never in a tent, a camper, a garage or a closed shower stall: it burns propane right there and makes carbon monoxide.
Drain it after the last trip of the season. Water left inside can freeze and crack the heat exchanger. Our natural gas vs propane guide covers propane setups.
How the VELPAX 110,000 BTU Natural Gas Outdoor stacks up against the closest alternative, the CAMPLUX 1.58 GPM Portable with Pump Kit.
| Criterion | VELPAX 110,000 BTU Natural Gas Outdoor | CAMPLUX 1.58 GPM Portable with Pump Kit |
|---|---|---|
| Our rating | 7.0/10 | 7.1/10 |
| Max flow | 4.76 GPM | Not stated |
| Gas input | 110,000 BTU/h | Not stated |
| Fuel | Natural gas | Not stated |
Pick the CAMPLUX 1.58 GPM Portable with Pump Kit if you want our higher-rated option (7.1/10); stay with the VELPAX 110,000 BTU Natural Gas Outdoor for more flow (4.76 GPM) and a bigger burner (110,000 BTU/h).
We rate it 7.0/10 (good). The rating comes from its documented listing alone, as no customer-review record is captured yet.
The listing states a maximum flow of 4.76 GPM and a gas input of 110,000 BTU/h on 110 V. The headline flow is a mild-weather number: with cold winter water coming in, the same unit gives you less. Read the maker's flow chart at your winter rise, or let our flow-rate calculator do the sums.
The listing says outdoor mounting. It only goes inside if the maker lists that exact model for indoor use, with the venting it specifies; a licensed gas installer confirms the spot under your local code.
Its listing states up to 4.76 GPM, hot water from a propane tank and freeze protection. These are the seller's figures, not our measurements: how steady the temperature is in your shower and how it copes with your winter water can't be read from a listing.
Water pressure: it starts from 3 PSI, per the listing. A garden hose off a house tap is usually plenty; an RV pump or a gravity tank is worth checking first. The tank and the hose: check that the regulator and the gas hose come in the box, and keep a spare tank for a long weekend. Where it runs: outdoors only, with open air around it. Never in a tent, a camper, a garage or a closed shower stall: it burns propane right there and makes carbon monoxide. Before the frost: drain it after the last trip of the season. Water left inside can freeze and crack the heat exchanger. Our natural gas vs propane guide covers propane setups.
We link to the exact listing on Amazon, where today's price, stock and seller apply. It is an affiliate link, and it has no effect on the rating.
No, we haven't used it ourselves. Everything on this page comes from its listing, read line by line and weighed with our published formula.