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he already got that ED, he had posted a few times under different names, you know how it goes.<BR><BR>Dave

• Member Posts: 14
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the longest zone is 258' it`s btu/hr is15000, the 127956 btu/hr was the total of all 4 zones added together. I have this formula from my IBR manual, but its been a while since I took algebra. head Loss=(258/100)x.274x(13)1.75 the 258 is my length, divided by 100' x this # I got from my manual and relates to the 3/4 pipe used(.274)the last part i can`t figure out, the 1.75 is acually up in the right hand corner of the 13 , if it was a 2 up there I think it would be 13x13 , you know , squared but what do I do with the 1.75 in this equation
• Member Posts: 170
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> the longest zone is 258' it`s btu/hr is15000, the

> 127956 btu/hr was the total of all 4 zones added

> together. I have this formula from my IBR manual,

> but its been a while since I took algebra. head

> Loss=(258/100)x.274x(13)1.75 the 258 is my

> length, divided by 100' x this # I got from my

> manual and relates to the 3/4 pipe used(.274)the

> last part i can`t figure out, the 1.75 is acually

> up in the right hand corner of the 13 , if it was

> a 2 up there I think it would be 13x13 , you know

> , squared but what do I do with the 1.75 in this

> equation

• Member Posts: 170
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