retrofit

Sixty five houses in Ontario, Canada, were air tightened with the aid of fan depressurization. The average percentage reduction equivalent leakage area for all houses was 36%. An improvement in comfort was noted. No significant changes occurred in the overall number of moisture problems but there was a definite change in the type of problem. The net fuel reduction for the total sample was 4.8%.

Presents the conclusions of several field studies carried out in retrofitted houses in the USA and compares them with predictions from models.

Fifty-nine owners/occupants of electrically heated houses in the Denver, Colorado area have, for about ten months, been participating in a study sponsored by the Electric Power Research Institute (EPRI) to determine theeffect of air infi

This paper presents an account, and results, from the U.S. Gas Industry's on-going program to assess the effectiveness of various retrofit actions toincrease the seasonal efficiency of central, gas-fired, space heating, residential furnace

This paper presents an account, and results, from the U.S. Gas Industry's on-going program to assess the effectiveness of various retrofit actions to increase the seasonal efficiency of central, gas-fired, space heating, residential furnac

A large number of developments are under way in the United States of America aimed at providing new high efficiency, space heating equipment for existing and for new single and two family dwellings. The majority of these developments are s

The Alberta Home Heating Facility has been used over a five year period to attempt to understand the effects of retrofit procedures on the house structure as a whole. The percentage of total energy attributable toinfiltration is calculated, and the influence of furnaces on natural infiltration rates is discussed. Results of blower tests are given for the six modules and compared with measured infiltration rates.

The effect of reduced air infiltration rate caused by energy-saving measures has been studied by comparing the indoor climate in 25 sealed apartments with the conditions in 25 unsealed apartments in Denmark in four seasonal periods. 

The effects of retrofitting for building tightness, air-to-air heat exchangers, and HVAC circulation fans on radon and radon progeny levels were investigated using two matched test houses.