The Eccotemp 45HI-LP is the largest indoor model of the Eccotemp tankless line. Rated at impressive 6.8 GPM and 140,000 BTU per hour, the 45HI-LP can meet all the hot-water needs of a standard home or apartment with one or two bathrooms, as well as smaller commercial applications. The compact, wall mounted 45HI-LP is powered by liquid propane and is also split system adaptable, which can further increase efficiency and hot water delivery speed. With its fully automated control system, the Eccotemp 45HI-LP is the ideal choice for any standard sized home.