Rinnai Residential Tankless Water Heaters
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All Rinnai interior units utilize an exclusive cool-to-the-touch vent system that is sealed combustion and requires only one penetration through the roof or sidewall. Rinnai interior units can mount almost anywhere and can have a vent up to 41 feet long. They are designed to operate at outdoor temperatures as low as -30° F.
Exterior Rinnai units offer tremendous flexibility and safety. They are mounted on the exterior of your home so they require no floor space. While they are designed to operate to -30° F, care should be taken to properly install them in colder climates.