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How to measure Radiator Sq Ft?

jpf321 Member Posts: 1,566
I'm trying to figure out how to measure the sq ft of my radiators .. it is as simply as I found online .. "multiply by the # of rad

sections---thus, a 24 section rad 1/2' wide and 1.5' high = .5 X 1.5 =

.75 sq/ft X 24 = 185 sq.ft. X 170 = 3060 btu/hr as the heat output for

this rad. " ..

I have a 1-pipe steam system with radiators throughout the house.

I just found this online too .. has a table which provides Heating/sq. ft. but it says it comes from the manufacturer of that specific brand... <a href="">[url=]</a>

On another note .. does painting the radiators silver (or any particular color or painttype metallic) affect the radiation?

Wow .. I just found the table on this page .. <a href=""></a> It seems that painting a radiator does matter .. and it seems like WHITE is the best choice. But I'd like to hear from the group.


1-pipe Homeowner - Queens, NYC

NEW: SlantFin Intrepid TR-30 + Tankless + Riello 40-F5 @ 0.85gph | OLD: Fitzgibbons 402 boiler + Beckett "SR" Oil Gun @ 1.75gph

installed: 0-20oz/si gauge | vaporstat | hour-meter | gortons on all rads | 1pc G#2 + 1pc G#1 on each of 2 mains

Connected EDR load: 371 sf venting load: 2.95cfm vent capacity: 4.62cfm
my NEW system pics | my OLD system pics


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