Rinnai V65iP Outdoor Propane Tankless Water Heater

The Rinnai V65iP is a 150,000 BTU outdoor propane tankless water heater, designed for exterior wall-mount installation in propane-only homes. Mid-tier in Rinnai's outdoor propane lineup, sized for 1-2 bathroom homes in warm climates.

Specs: 150,000 BTU propane input, UEF 0.82 (non-condensing), 6.6 GPM at a 35°F rise or 3.3 GPM at a 70°F rise. Sealed direct-vent combustion (outdoor mount eliminates indoor venting). 12-year warranty on heat exchanger, 5-year on parts.

The outdoor propane positioning serves a specific niche: rural homes with propane supply, mild climates where exterior mounting is code-acceptable, smaller homes where 199K BTU capacity is unnecessary. The exterior mount eliminates the indoor venting cost and frees indoor space.

Limitations: cold-climate operation requires the unit's internal freeze protection (heater consumes minor electricity year-round). The unit is exposed to weather — Rinnai's warranty assumes proper exterior mounting with reasonable weather protection (preferably under an eave or with a protective hood for severe-weather climates).

About $1,200 unit, $2,500 installed. Right buyer: rural propane home in mild-climate region with 1-2 bath demand. Wrong buyer: cold-climate primary residences (indoor mount is more economical year-round), or homes with overlapping multi-bath demand (199K BTU class is the right size).