초록 ▼

A demand recovery hot water system in accordance with the present invention provides for return of hot water from a plurality of plumbing fixtures to a hot water source. A transfer tank is provided with a movable piston which enables circulation of hot water without significant loss thereof. Continu

A demand recovery hot water system in accordance with the present invention provides for return of hot water from a plurality of plumbing fixtures to a hot water source. A transfer tank is provided with a movable piston which enables circulation of hot water without significant loss thereof. Continuous circulation is not required thus reducing operating costs.

대표청구항 ▼

A demand recovery hot water system comprising: a hot water source; conduit means, in fluid communication with said hot water source and at least one plumbing fixture, for enabling circulation of hot water from said hot water source to said plumbing fixture and return to said hot water source; pump m

A demand recovery hot water system comprising: a hot water source; conduit means, in fluid communication with said hot water source and at least one plumbing fixture, for enabling circulation of hot water from said hot water source to said plumbing fixture and return to said hot water source; pump means for circulating hot water through the conduit means; switch means for generating a control signal; control means for causing said pump means to circulate hot water through the conduit means from said hot water source to said plumbing fixture and from said plumbing fixture to said hot water source in response to the control signal; and hot water recovery means, in fluid communication with said hot water source and said conduit means, for accumulating water circulated through said conduit means and thereafter returning the accumulated water into the conduit means for return to the hot water source.