Word: thats
(lookup in dictionary)
(lookup stats)
Dates: during 1970-1979
Sort By: most recent first
(reverse)
Engineer-Architect Fred Dubin, who considers conservation "a national security issue," is currently engaged in 75 energy-conserving projects involving new and existing buildings. He is developing an integrated energy system for large buildings that uses wind and photovoltaic cells for generating electricity, then recaptures waste heat from the cells...
In New York, Chicago, Boston and other major cities, he can call for heat on a hotline. While the federal ceiling of 65° applies only to commercial and public buildings, most cities enforce local laws requiring landlords to keep residential buildings at a minimal 68° by day and...
Proper house insulation is the first prerequisite for the effective use of any energy-saving device. The newly designed $1,400 Blueray furnace, for example, captures as much as 90% of the energy that is locked in a gallon of heating oil, vs. the 70% recovered by a conventional furnace...
Worthwhile energy gizmos are by and large both simple and durable. Also they save enough energy so that the homeowner can recover, or amortize, the initial expenditure-which can amount to several hundred dollars-within a reasonable time. Herewith a sampler of five of the best and most cost-effective...
Vent dampers. Before a furnace or boiler can heat a house, it first must heat itself. Only after the inside temperature climbs to about 130° F does the furnace begin transferring warmth. Yet whenever the system shuts off, much of the accumulated heat within the furnace escapes up the...