Equivalence of direct radiation
id:
equivalence-of-direct-radiation-199-18641323
title:
Equivalence of direct radiation
text:
Equivalence of direct radiation (EDR) is a standardized comparison method for estimating the output ability of space-heating radiators and convectors. Measured in square feet, the reference standard for EDR is the mattress radiator invented by Stephen J. Gold in the mid 19th century. One square foot of EDR is able to liberate 240 BTU per hour when surrounded by 70 °F (21 °C) air and filled with steam of approximately 215 °F (102 °C) temperature and 1 psi of pressure. EDR was originally a measure
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Equivalence_of_direct_radiation
date created:
date modified:
2022-01-26T21:23:45Z
main entity:
{"identifier":"Q5384709","url":"https://www.wikidata.org/entity/Q5384709"}
image:
fields total:
13
integrity:
13