Off-peak control of water heaters on rural power systems. 

 - Washington  [U.S. Govt. Print. Off.]  1949. 
 - 66 p.  diagrs.  26 cm. 
<br/><br/><label>LCCN: </label>agr49000660  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hot-water supply.<br/>Electric heating.<br/>Rural electrification.
<br/><br/><label>LC Class. No.: </label>TH6561.5  / .U53 1949 
<br/><br/><label>Dewey Class. No.: </label>644.6