Rinnai V65iN Value Series Indoor Tankless Water Heater

Model V65iN
4.2/5 from 250 ratings
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Price as of May 2026
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Btu
150000
Venting
Category III Stainless
Fuel Type
Natural Gas
Tank Type
Tankless
Capacity Gpm
6.6
Energy Factor
0.81

Rinnai V65iN Value Series Indoor Tankless Water Heater Review

The Rinnai V65iN Value Series Indoor Tankless is Rinnai's mid-sized value tankless, sitting between the V53iN/iLP (smaller) and V94iN/iLP (larger) in the Value Series. "65" reflects 6.5 GPM rated capacity; "iN" means indoor natural gas.

Specs: 150,000 BTU natural gas input, UEF 0.82 (non-condensing), 6.5 GPM at a 35°F rise. Category III stainless steel B-vent venting. Copper heat exchanger. 10-year warranty on heat exchanger.

The 150K BTU class is right-sized for 1-2 bath homes in warm climates or 1-bath homes in cold climates with sequential demand. Smaller gas line requirements than 199K BTU tankless — often 3/4" line works at typical distances.

The Value Series is Rinnai's budget tankless line. About $1,100 unit, $2,500 installed. Right buyer: small to medium home wanting Rinnai service-network advantage at value pricing rather than premium Sensei/RX positioning.

Full Specifications

Brand
Rinnai
Model Number
V65iN
Btu
150000
Venting
Category III Stainless
Fuel Type
Natural Gas
Tank Type
Tankless
Capacity Gpm
6.6
Energy Factor
0.81
Warranty Years
10

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