how to calculate EDR for rad's for a DIY

steve_6

go to www.burnham.com/tools.cfm and click on sizing obsolete radiation

jim shea

I think my boiler maybe undersized I want to figure my rad's to see if it was sized right. Is there a easy formula?I know I must get the name of the rad, but are they mostly similar in construction. I think my boiler has a EDR of about 450-490.

Thank You Jim

jim shea

I think my boiler maybe undersized I want to figure my rad's to see if it was sized right. Is there a easy formula?I know I must get the name of the rad, but are they mostly similar in construction. I think my boiler has a EDR of about 450-490.

Thank You Jim

jim shea

EDR

I think my boiler maybe undersized I want to figure my rad's to see if it was sized right. Is there a easy formula?I know I must get the name of the rad, but are they mostly similar in construction. I think my boiler has a EDR of about 450-490.

Thank You Jim

jim shea

EDR

I think my boiler maybe undersized I want to figure my rad's to see if it was sized right. Is there a easy formula?I know I must get the name of the rad, but are they mostly similar in construction. I think my boiler has a EDR of about 450-490.

Thank You Jim

Mark Hunt

You need to measure


the radiators height and we would need to know whether they are column or tube type.

The depth of the radiator would also be needed.

Once we know what style and size you have we can calculate the EDR. Then we would multiply that number by 240 to get to the steam btu's.

If you give us a description of the rads we can help you figure this out.

Mark H

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David Efflandt

Web sources for EDR

How many times are you going to post the same question?

There are charts in "The Lost Art of Steam Heating" book here. A couple of web sources are http://www.colonialsupply.com/resources/radiator.htm (tube vs. column illustration farther down 2nd page reversed) or http://www.antiqueplumbingandradiators.com/askpage.html

David Efflandt

Web sources for EDR

How many times are you going to post the same question?

There are charts in "The Lost Art of Steam Heating" book here. A couple of web sources are http://www.colonialsupply.com/resources/radiator.htm (tube vs. column illustration farther down 2nd page is reversed) or http://www.antiqueplumbingandradiators.com/askpage.html

David Efflandt

Web sources for EDR

How many times are you going to post the same question?

There are charts in "The Lost Art of Steam Heating" book here. A couple of web sources are http://www.colonialsupply.com/resources/radiator.htm (tube vs. column illustration farther down 2nd page is reversed) or http://www.antiqueplumbingandradiators.com/askpage.html

You must have a decent size home if 450-490 EDR is not enough. My boiler is rated 283 sq ft and radiators are only about 158 sq ft. (3 bdrm 2-story), so my boiler is oversize.

David Efflandt

Web sources for EDR

You accidently reposted several times.

There are charts in "The Lost Art of Steam Heating" book here. A couple of web sources are http://www.colonialsupply.com/resources/radiator.htm (tube vs. column illustration farther down 2nd page is reversed) or http://www.antiqueplumbingandradiators.com/askpage.html

My boiler is rated 283 sq ft and radiators are only about 158 sq ft. (3 bdrm 2-story circa 1910 in N.IL), so my boiler is oversize.