Ranein RH19K-LPG
0.82 UEF DOE CCD · 2026-09-19Grade G: where this UEF sits among the 397 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set
A gas tankless unit, high draw pattern (a larger household, or one where showers and laundry overlap).
If you are checking the Ranein RH19K-LPG, a gas tankless unit, it uses 206 therms of natural gas a year. That figure is for the high draw pattern, the standard daily hot-water usage DOE tests against. It sits 24 therms above the 182 therms median of the 397 gas tankless models at that pattern.
Energy use per year
206 therms a year
Computed by this site from the registry's UEF and the federal test's daily hot-water draw for this draw pattern. What it costs depends on the natural gas rate where you live.
That is above the median of 182 therms for the 397 models registered in the same heater type and draw pattern; it ranks 229 of 397, lowest energy first.
Solid line: this model (206 therms). Dashed line: the class median.
Min 173 therms Median 182 therms Max 209 therms
What it costs to run where you live
What the registry files
- UEF (Uniform Energy Factor) how much hot water you get for each unit of energy the heater uses
- 0.82 DOE CCD · 2026-09-19 Compared only with other models registered as a gas tankless unit at the high draw pattern.
- Draw Pattern the standard daily usage profile DOE tests the unit against
- High DOE CCD · 2026-09-19
- Maximum Gallons Per Minute how many gallons a minute it can heat while running continuously
- 8.5 gal/min DOE CCD · 2026-09-19
What it costs to install
$1,745–$2,687 installed
Not a quote — a modeled range of what installers have charged for this class of unit; your price will vary with labor rates, access, and local code requirements.
Escalation indexes: equipment (BLS PPI) latest available: August 2026; labor (BLS ECI) latest available: April 2026 to June 2026.
NLR REMDB (BLS PPI/ECI escalated) · 2026-04-01Safety record
No CPSC recall names this model.
Checked against the CPSC recall database. CPSC does not publish a model-level match for this product category, so this list is curated by hand from the manufacturer's recall filings.
CPSC · 2026-09-24What these figures mean
How this compares
The closest models in the same class — same fuel, type and draw pattern.
Keep going
How every figure on this page is calculated
-
Find what replaces your water heater
Enter the model number off your old unit and see what is on file today, with the yearly cost difference.
-
Find a water heater that fits
Three questions — fuel, hot water need, install space — narrow every model on file to the ones that fit.
-
What a water heater costs to run
Prices a unit's efficiency against your own utility's filed tariff for your ZIP code.
-
How to size a tankless water heater by GPM
Answered from what models in this size actually file.
-
Water heaters
Every model on file with the Department of Energy, by heater type.
-
All gas tankless water heaters
Gas-fired instantaneous units, sized by flow rate rather than tank gallons.
-
Every Ranein model on file
What this brand files, by heater type.
UEF 0.82 · Grade G Price it on your ZIP
This site calculates the 206 therms figure; the registry does not publish it. The calculation uses the registry's UEF, the ratio of hot water delivered to energy used, and the daily hot-water draw set by the DOE test for the high draw pattern. This model's UEF is 0.82. The source data comes from the DOE certification database (CCD), retrieved 2026-09-19. The figure describes a day under the federal test, not a measured household. A home that uses more hot water than the test day will use more gas than 206 therms. A home that uses less will use less. The registry does not say how large that difference would be for a given home. The steps are listed in how this site calculates annual energy and cost.
The high draw pattern represents a larger household, or one where showers and laundry overlap. This unit ranks 229th lowest in energy use among the 397 gas tankless models registered at that pattern. That puts it in the second-highest quarter of its class for energy use. Because it sits above the class median, most models in the class use less gas at the same test draw. The registry lists its maximum flow rate in gallons per minute as 8.5. That rating measures flow, not yearly energy, so the two figures answer different questions. The 206 therms figure does not describe a home with lower daily use, because that home falls under a different draw pattern. The water heater selector by fuel, space and size sorts models by those factors.
The text on this page does not give a running cost. The cost of 206 therms of natural gas depends on your state's average residential gas price, so the page calculates it from your ZIP. The cost of the 24 therms gap to the class median depends on that same price. To see both figures, use the running-cost calculator for your ZIP. To compare this unit with other gas tankless models at the high draw pattern, use the same-class replacement search by model number. It lists models in the same comparison class. The installed-price range on this page appears in its own block with its source and date. It is a modeled range, not a quote.
DOE CCD · 2026-09-19