Product images: Amazon listings
Written from the listing's specs, not from our own use · How we rate
The Eccotemp i12-LP Propane Indoor is a no-fuss indoor gas tankless heater, made for trading the tank for wall space and steady showers. We rate it 6.9/10 from its documented specs.
| Brand | Eccotemp |
|---|---|
| Category | Gas tankless water heaters |
| Fuel | Propane |
| Stated mounting location | Indoor |
| Stated voltage | 110 V |
| ASIN | B0157EJT28 |
Full listing title: Eccotemp i12-LP Liquid Propane Indoor Tankless Water Heater
| Fuel | LPFull listing title |
|---|---|
| Stated mounting location | IndoorFull listing title |
| Stated voltage | 110vListing text |
Rated from the listing's specs, no buyer reviews yet
What it's made for: trading the tank for wall space and steady showers.
Two gas tankless heaters close to it on our rating, each with a dated price.
What it has going for it
Safety listing. CSA, ETL or UL certification is named in the listing. Inspectors look for that mark before they sign off.
What the Eccotemp i12-LP Propane Indoor listing names:
Read the installation manual for the vent, the gas line size and the clearances before you order; it overrides anything above.
We have no recent price on file for this listing, so we don't print an old one.
Count the install in the budget: vent pipe, possibly a 3/4" gas line, and a licensed plumber or gas fitter.
The button opens the exact listing (ASIN B0157EJT28), 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
The Eccotemp i12-LP Propane Indoor is a plain indoor gas tankless heater, and for trading the tank for wall space and steady showers plain can be the point. No buyer reviews yet, so this Eccotemp indoor gas tankless heater has to win you over on paper. The catch with the Eccotemp: no stated temperature hold, while most picks here claim ±1 °F. We'd pick it if you want an indoor gas tankless heater for trading the tank for wall space and steady showers; otherwise, put it next to the Rheem RTG 7.0 GPM Natural Gas Indoor first.
Old tank out, unit on the wall, vent through the wall or the roof. a licensed pro handles it, and often a permit.
Hot water arrives after the cold already in the pipes, then stays. 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 clean the inlet filter. Our flushing and descaling guide has the checklist.
Before the Eccotemp i12-LP Propane Indoor goes in your cart, check the flow chart: the listing gives no flow figure, so ask for the maker's flow chart before you size against 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.
A licensed plumber or gas fitter confirms the vent route, the combustion air and a gas line that can deliver its full input. Get that quote before you order; our installation guide lists what they will ask.
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 Eccotemp i12-LP Propane Indoor stacks up against the closest alternative, the Rheem RTG 7.0 GPM Natural Gas Indoor.
| Criterion | Eccotemp i12-LP Propane Indoor | Rheem RTG 7.0 GPM Natural Gas Indoor |
|---|---|---|
| Our rating | 6.9/10 | 7.0/10 |
| Max flow | Not stated | 7 GPM |
| Gas input | Not stated | 160,000 BTU/h |
| Temperature hold | Not stated | ±1 °F stated |
| Buyer reviews | None captured | 65 · 4.5/5 |
Pick the Rheem RTG 7.0 GPM Natural Gas Indoor if you want our higher-rated option (7.0/10), with more flow (7 GPM) and a bigger burner (160,000 BTU/h).
We rate it 6.9/10 (good). The rating comes from its documented listing alone, as no customer-review record is captured yet.
Yes, the listing says indoor mounting. That means a vent route to the outside, combustion air and a gas line sized for the unit, all as the maker and your local code require. A licensed plumber or gas fitter sorts that out.
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. Vent and gas line: a licensed plumber or gas fitter confirms the vent route, the combustion air and a gas line that can deliver its full input. Get that quote before you order; our installation guide lists what they will ask. 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, read line by line and weighed with our published formula.