description Rinnai V75iN Overview
The Rinnai V75iN is an indoor, natural-gas tankless water heater designed for residential use. It heats water on demand instead of maintaining a heated storage tank and is rated for a maximum flow of 7.5 gallons per minute under suitable temperature conditions. The model is intended for households whose simultaneous hot-water demand, incoming water temperature, gas supply, venting, and installation conditions fall within its specified capacity.
help Rinnai V75iN FAQ
What kind of water heater is the Rinnai V75iN?
The V75iN is an indoor, natural-gas, tankless water heater with a maximum input of 180,000 BTU and a listed UEF of 0.81. Rinnai rates its maximum domestic hot-water flow at 7.5 GPM. [Rinnai V75iN](https://www.rinnai.us/professional/product-detail/v75in)
Does the Rinnai V75iN deliver 7.5 GPM in every home?
No. The 7.5 GPM figure is the maximum rating, while the actual flow depends on incoming-water temperature, the desired temperature, pressure, and simultaneous fixtures. Rinnai's specification range is about 0.26 to 7.5 GPM, with the 180,000 BTU input limiting performance at higher temperature rises. [Rinnai V75iN specification sheet](https://media.rinnai.us/salsify_asset/s-759d7d3c-1cb9-4777-b9ce-ff8f61f6857a/V75i%20%28VC2528FFU-US%29%20SP.pdf)
Can the Rinnai V75iN be installed outdoors?
No. Rinnai lists the V75iN as an indoor model; the V75eN is the related exterior model in the V Series. Outdoor installation therefore requires choosing the correct exterior model rather than placing the V75iN outside. [Rinnai V Series](https://www.rinnai.us/residential/tankless-water-heaters/v-model-series)
Does the V75iN need electricity even though it burns natural gas?
Yes. The indoor unit uses 120 VAC for electronic ignition and controls, and Rinnai lists it as Wi-Fi capable. Gas and venting work should be checked by a qualified installer because the V75iN is an indoor non-condensing appliance. [Rinnai V75iN](https://www.rinnai.us/professional/product-detail/v75in)
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