Rinnai RX180iN Condensing Tankless Water Heater

Condensing tankless water heater with high efficiency and flexible installation options. Features Smart Sense gas control system for propane or natural gas operation, Versa Vent for easy installation, and Quick Flush function for simplified maintenance. Compact wall-mounted design suitable for indoor or outdoor use with Energy Star qualification. Optional Wi-Fi connectivity available with separate Control-R module.

  • 2 variants
  • Indoor or outdoor installation
  • Size: 2 variants
New prices RUB 110,962 – RUB 120,631
Used prices RUB 89,179 – RUB 117,127
Price spread ~9% Across new variants
Customer rating 4.9 44 ratings

Available variants (2)

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Variant comparison

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Feature 11.1 GPM, 199000 BTU, 98 watts 10 GPM, 180000 BTU, 76 watts
Price RUB 120,630.62 RUB 110,962.32
Updated Jun 5, 2026 Jun 2, 2026
Availability Available to order Available to order
Size 11.1 GPM 10 GPM
Wattage 98 watts 76 watts
efficiency High (UEF .98) High (0.98 UEF)
Heat Output 199000 British Thermal Units 180000 British Thermal Units
Item Weight 55 pounds 54 pounds
Maximum Flow Rate 11 Gallons Per Minute 10 Gallons Per Minute
Product Dimensions 18.5"W x 30.11"H 19"W x 31"H

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Overview

Compare Rinnai RX180iN Condensing Tankless Water Heater variants, pricing tiers and key differences.

Learn more

How variants differ

  • Size
  • Wattage
  • efficiency

Who each variant is for

  • Start with your budget: the visible price spread across variants is about 9%.

Reviews

4.9 / 5 from 44 ratings
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Reviews

4.9
(44 ratings)

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