Primary/Secondary with Mod-Cons

Weezbo

would you show the same system comming out of a freezup where everything was 40 percent antifreeze and the boiler suddenly had power again? i think that would show just how valuable a LLH is in the deal.

Mike T., Swampeast MO

Just curious. Should I continue with system "snapshots"?

Changes require a lot of time as I hand calculate nearly everything.

I don't mind spending the time but if I'm just preaching to the choir on one end and speaking to deaf ears on the other it seems rather futile.

Mike T., Swampeast MO

Weezbo:

40% propylene glycol in water freezes at about -8F but it has turned to slush before.

0F for the boiler return temp?

Unknown

where are the previous ones? can't find 'em.

Weezbo

the snapshot of when the system starts at that time

would be a picture seldom considered. i think i wrote out the last one on a piece of paper ...i was just looking for it ah the folly of my youth for organization in chaos...

i will find it ....:)er...maybe:) well, i found part of it 7 degree delta T @ 3.5GPM as i remember that was 109 going out 102 comming back...

ihave it in my computer ...getting it back out of it may prove tricky for me

i made adobie acrobat tumble it around because it was hurting my neck. then i made a copy in long hand...and i saved it in this computer

....Dang i put it on the other post ))) man i am challanged at this )sorry ...i digress:)

when the boiler starts in the cold, the room temps are close to the out door temp and the fluid temp is as you say 0 .many homes in America are probably seeing 0 as close to their designe temp when the boiler would normally Be running at its max....so, i think it would interest the general public to see that picture...in contrast to a previous picture of when it was zooming along maintaining room temp + change... if/when someone wanted to dial it up a bit in one room and down in another...

BTW it is warm right now and it may be like two below zero..