
FOGATTI Outdoor Propane Tankless
9.1Excellent · out of 10$529.99 Price on Sep 30, 2026 · may have changed- Stated: 120,000 BTU/h · 120 V
- 166 buyer reviews
- Gas tankless water heaters

Product images: Amazon listings
Written from the listing and 166 buyer reviews, not from our own use · How we rate
The FOGATTI Outdoor Propane Tankless ticks most of the boxes we care about: 120,000 BTU/h of burner, outdoor mounting that skips the flue and a ±1 °F temperature hold. For a mild-climate house with no easy vent route, it's the one to shortlist first: #1 in our outdoor propane tankless water heater ranking.
| Brand | FOGATTI |
|---|---|
| Category | Gas tankless water heaters |
| Fuel | Propane |
| Stated mounting location | Outdoor |
| Stated gas input | 120,000 BTU/h |
| Stated voltage | 120 V |
| Temperature hold | ±1 °F, per the listing |
| Freeze protection | Stated in the listing |
| Water pressure | From 15 PSI |
| Buyer reviews | 166 · 4.0/5 |
| ASIN | B0CS9M5BFM |
Full listing title: FOGATTI Tankless Water Heater Gas Propane Outdoor On Demand CSA Certified
| Fuel | PropaneFull listing title |
|---|---|
| Stated mounting location | OutdoorFull listing title |
| Stated gas input | 120,000 BTUListing text |
| Stated voltage | 120VListing text |
The two picks next to it in our outdoor propane tankless water heaters ranking, with their rating and a dated price.



The gas input the listing states. It gives no GPM figure, so ask the seller for the flow chart before you size your house against it.
Why it made our list
Mounts outside. No vent pipe through the roof or the rim joist: it hangs on an outside wall and breathes on its own. The listing states freeze protection, which typically needs power at the wall to work.
±1 °F hold. The burner adjusts as the flow changes, so the shower stays where you set it when somebody opens the kitchen tap. On paper, at least: that is the seller's claim.
Mild winters: the FOGATTI Outdoor Propane Tankless goes on an outside wall, which saves the vent pipe and keeps the closet free.
Hard freezes: freeze protection is stated, and it runs on electricity. A long outage in January is when you drain it, before the heat exchanger splits.
The seller states, word for word, in the FOGATTI Outdoor Propane Tankless listing:
Featuring advanced water servo technology and temperature sensors, this propane tankless water heater precisely regulates water flow and gas intake, maintaining a temperature difference within ±1°F.
This tankless water heater outdoor is compatible with low water pressures ranging from 15-150 PSI.
If the ambient temperature drops below 5°F or if it will not be used for an extended period, draining the water inside is recommended to prevent damage.
The seller's claims, quoted as written; we haven't measured any of it. The flow at your winter rise is in the maker's chart, not in the bullet points.

What the FOGATTI Outdoor Propane Tankless listing names:
Read the installation manual for the vent, the gas line size and the clearances before you order; it overrides anything above.

On Sep 30, 2026, that price put it in the cheaper third of the 34 outdoor tankless heaters we have a recent price for.
Outside mounting saves the vent pipe; the gas line, the water lines and a weatherproof outlet are still a separate bill.
The button opens the exact listing (ASIN B0CS9M5BFM), where today's price, stock and seller apply.

Want the high-efficiency kind? The Rheem RTGH 9.5 GPM Propane Indoor (7.8/10) is a condensing unit, per its listing.
Our take
If a friend asked us for one outdoor propane tankless water heater, we'd point them to the FOGATTI Outdoor Propane Tankless. With 166 buyer reviews behind it, you are not taking a leap in the dark. Where it falls short: their 4.0/5 average sits under the 4.3 of this ranking. With the numbers right for your house and a pro lined up, this is where we'd spend the money. If not, the Ranein 130,000 BTU Propane Outdoor is plan B.
It goes on an outside wall, with gas, water and power run to it. Plan the gas line for 120,000 BTU/h; a licensed pro handles it, and often a permit.
Hot water arrives after the cold already in the pipes, then stays (within ±1 °F, per the listing). A trickle from a bathroom tap may not light the burner; open it a bit more.
January water comes in colder, so the same unit gives fewer GPM. Stagger the showers if you sized it tight.
Flush the heat exchanger with a pump and a descaler (the service valves make it an hour's job), and clear leaves and wasp nests from the cabinet vents. Our flushing and descaling guide has the checklist.
Buyers give it 4.0/5, a decent record, below this ranking's 4.3 average. 166 reviews is a fair sample, enough for the average to mean something.
Before the FOGATTI Outdoor Propane Tankless ships, check your gas line: 120,000 BTU/h is a lot of gas at once, so ask your plumber whether the existing line can feed it.
In a northern January the water comes in near 42 °F, so a 105 °F shower needs a 63 °F rise and the real flow drops. Our flow-rate calculator runs the numbers for your house.
Pick a wall away from windows and doors, with power for the controls and the freeze protection the listing mentions. Our indoor vs outdoor guide compares the two installs.
Read what it requires: a licensed install, the gas type and regular flushing are the usual conditions.
Hard water scales the heat exchanger. Service valves on the water lines turn the yearly flush into an hour with a bucket and a pump; our flushing and descaling guide shows the routine.
How the FOGATTI Outdoor Propane Tankless stacks up against the closest alternative in our ranking, the Ranein 130,000 BTU Propane Outdoor.
| Criterion | FOGATTI Outdoor Propane Tankless | Ranein 130,000 BTU Propane Outdoor |
|---|---|---|
| Our rating | 9.1/10 | 7.5/10 |
| Max flow | Not stated | 5.3 GPM |
| Gas input | 120,000 BTU/h | 130,000 BTU/h |
| Temperature hold | ±1 °F stated | Not stated |
| Buyer reviews | 166 · 4.0/5 | 710 · 4.2/5 |
Pick the Ranein 130,000 BTU Propane Outdoor if more flow (5.3 GPM) and a bigger burner (130,000 BTU/h) matter more to you; on our rating, the FOGATTI Outdoor Propane Tankless comes out ahead.
We rate it 9.1/10 (excellent), #1 of 5 in our outdoor propane tankless water heater ranking. It is based on 166 buyer reviews averaging 4.0/5 and the specifications stated in the listing.
The listing states a gas input of 120,000 BTU/h on 120 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 120,000 BTU/h of burner, outdoor mounting that skips the flue and temperature held within ±1 °F. 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.
Your winter flow: in a northern January the water comes in near 42 °F, so a 105 °F shower needs a 63 °F rise and the real flow drops. Our flow-rate calculator runs the numbers for your house. The outside wall: pick a wall away from windows and doors, with power for the controls and the freeze protection the listing mentions. Our indoor vs outdoor guide compares the two installs. The warranty terms: read what it requires: a licensed install, the gas type and regular flushing are the usual conditions. Flushing: hard water scales the heat exchanger. Service valves on the water lines turn the yearly flush into an hour with a bucket and a pump; our flushing and descaling guide shows the routine.
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 and 166 buyer reviews, read line by line and weighed with our published formula.
If the FOGATTI Outdoor Propane Tankless hasn't sold you yet, see where it ranks, read the guides that feature it or browse all gas tankless water heaters.