Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.
EDR Rating Chart

Don10000
Member Posts: 21
in Oil Heating
Does anyone know where I can find the EDR ratings for old Recessed Tuttle & Bailey copper steam convector radiators? I’m trying to determine the size of a new gas boiler. Two plumbers gave me their thoughts. One was 90K BTU, the other was 200K BTU.
I also realize I have to consider all piping to get the correct calculations.
Thanks a bunch!
Pic of radiator included.
I also realize I have to consider all piping to get the correct calculations.
Thanks a bunch!

Pic of radiator included.
0
Comments
-
I don't see the picture.0
-
@Don10000
If you can't find the Tuttle & Baily info find the rating of a new similar convector it will be close enough0 -
Somebody posted about this before:
https://forum.heatinghelp.com/discussion/comment/1614444#Comment_16144440
Categories
- 120.3K All Categories
- 83.6K THE MAIN WALL
- 2.8K A-C, Heat Pumps & Refrigeration
- 52 Biomass
- 414 Carbon Monoxide Awareness
- 31 Chimneys & Flues
- 1.7K Domestic Hot Water
- 4.6K Gas Heating
- 114 Geothermal
- 152 Indoor-Air Quality
- 2.9K Oil Heating
- 49 Pipe Deterioration
- 737 Plumbing
- 5.2K Radiant Heating
- 357 Solar
- 13.8K Strictly Steam
- 3K Thermostats and Controls
- 50 Water Quality
- 36 Industry Classes
- 70 Job Opportunities
- 14 Recall Announcements