Rinnai RE199i

Last updated: October 31, 2026

Rinnai RE199i
4.0/5#10 of 20 in gas tankless water heaters
4.0

A dependable whole home heater for buyers who want Rinnai power at a lower price than a condensing model and have room for metal venting.

  • 199,000 BTU/hHeating power
  • 9.8 GPMMax flow
  • 0.82UEF
  • 15 yearsHeat exchanger warranty
Check price at Amazon$1,280.79Check price at Amazon$1,412.82

Price checked October 31, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros
  • Enough burner for three showers at once in most of the country
  • Non condensing, so it needs no condensate drain
  • Light at 42 lb and compact for a closet or garage wall
  • 15 year heat exchanger warranty
Cons
  • A 0.82 UEF burns noticeably more gas than a condensing model
  • Needs Category III concentric venting, which costs more than PVC
  • Labor is covered for only 1 year

The Rinnai RE family

Every Rinnai RE model we rank, smallest first. Ratings compare each against its own fuel.

ModelHeating powerRatingPrice
Rinnai RE140e140,000 BTU/h3.3/5$884.10
Rinnai RE199e199,000 BTU/h4.0/5$1,280.79
Rinnai RE199i (this one)199,000 BTU/h4.0/5$1,280.79

How it scores

The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its fuel. How we rank explains each one.

Specifications

Model numberREU-VE2737FFD-US
Heating
FuelGas
Gas typeNatural gas or propane
Gas input10,400 to 199,000 BTU/h
Max flow9.8 GPM
UEF0.82
CondensingNo
ENERGY STARNo
Installation
VentingIndoor
Vent type3 in x 5 in concentric
Weight42.1 lb
Features
Built-in recirculationNo
Wi-FiNo
Heat exchanger warranty15 years
Parts warranty5 years

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