Rinnai V75 Water Heaters Review

Reviews  | Submit a Review

A review of the Rinnai V75 water heaters for indoor and outdoor installation. Explore the top features and specification for both models. Who should consider buying the V75 model?

Models review

Rinnai V75 water heaters are coming from the "Value" series that is recommended for budget-oriented families, who would like to replace the old tank-type water heater as the retrofit or installing in the brand new home. These models offer on-demand water heating in residential and manufactured homes and are providing a continuous supply of hot water. V75 models are using both natural and propane gas for heating and are Energy Star approved. The heaters are recommended for heating water in homes with up to three showers.

The warranty is 10 years on the heat exchanger or 12 with the isolation valve kit installed.

Rinnai V75i

Rinnai V75i

Rinnai V75i is an indoor model that uses the direct venting system and the forced combustion. That means, the water heater uses the outside air for gas combustion, while safely moving the products of combustion out. As it is designed with the closed combustion, V75i is suitable for closet, attic and crawl space installations.

Rinnai V75e

Rinnai V75e

Rinnai V75e also uses the forced combustion but without the venting pipes as it is installed outside. This type can be installed either on the external wall or in recess box, which protects the unit from the harsh weather.

emergency plumber

Features review

  • Direct electronic ignition that automatically lights the burner.

  • Low NOx burner - complies with the 20 ppm NOx emission levels.

  • Built-in temperature controller MC-91-2US on indoor models, provided with the outdoor models, allows easy temperature adjustment and control and helps in troubleshooting the problem.
  • The scale detection system.

  • Hot water temperature lock, which prevents accidental temperature changes.

  • Water flow sensor, electronic water control device and fixed by-pass.

  • Safety devices such as the flame rod, boiling remaining flame, frost protection (up to -22 F for indoor model and -4 F for outdoor model).

  • Diagnostic systems with LCD screen and error codes for troubleshooting.

  • Computerized parameter control via PC electronic board.

Specifications - Technical Data

V75i V75e
Gas Input
10,300 – 180,000 10,300 – 180,000
Water Flow
0.26-7.5 0.26-7.5
Energy Factor
0.82 0.82
Activation rate
0.4 0.4
Temp. settings
98-140 98-140
Electric consumption
76 57
Max. vent length
41 N/A
Altitude height
10200 10200
14x23x9 14x23x9
45.6 43.6

(Photo credit to Rinnai)