IPSWH

AcronymDefinition
IPSWHIntegral Passive Solar Water Heater
References in periodicals archive ?
For the do-it-yourselfer seeking an inexpensive, easy-to-build solar water-heating system, the integral passive solar water heater (IPSWH, pronounced ips-wah) is a dream come true.
IPSWHs arc called batch heaters because the heart of the system is the "batch" or water stored in the tank(s).