01329nam 2200349Ka 450 991069839110332120071228101325.0(CKB)4330000001933518(OCoLC)160128441(EXLCZ)99433000000193351820070731d2006 ua 0engtxtrdacontentcrdamediacrrdacarrierPipe freeze prevention for passive solar water heaters using a room-air natural convection loop[electronic resource] preprint /J. Burch ... [and others]Golden, CO :National Renewable Energy Laboratory,[2006]6 pages digital, PDF fileNREL/CP ;550-39722Title from title screen (viewed on July 31, 2007)."May 2006."Pipe Freeze Prevention for Passive Solar Water Heaters Using a Room-Air Natural Convection Loop Solar water heatersPreventionSolar water heatersPrevention.Burch J1400360National Renewable Energy Laboratory (U.S.)GPOGPOBOOK9910698391103321Pipe freeze prevention for passive solar water heaters using a room-air natural convection loop3544685UNINA