Please Help plumbing question?

Look on the tees. See if they have names stamped on them. Report back.

Mark M.

The existing T in the basement sofets have Tages on one side but cannot read what it says House built in 1950s.

You have what is commonly called a Monoflo system. A continuous loop of copper to and from the boiler with special tees for each radiator. With this setup you can regulate an individual radiator without choking off flow to the other radiators. This kind of heating system must be carefully designed in the first place. Adding another room to the loop may not work. For more information google bell and gossett monoflo hydronic heat. I recommend getting a professional to design and install the heat in your converted garage. You'll regret not spending the money upfront if it doesn't heat right.

Mark M.

You can't sum it up better then what Mark said, call a professional.

kenny b

Thanks for the advice. But There must be something out there to explain what I can do here. I don't understand why I cannot just continue the loop in the living room throughout the garage it's only another 8 feet. Won't the water keep flowing through the pipe. What will happen? Please explain. I am the type of person that would rather do it twice and understand why than have someone else do it. Thank you jim

Too many variables, Jim. No way to advise from here.

Mark M.

In other words. Knows FA about plumbing!!

It has nothing to do with plumbing, it's a heating question.

"Should I T off the base board heater then go through the wall?"

Teeing of a branch of a mono flo system won't work.

" Or B should I use 90 degree elbows and continue the flow into the new baseboard heater?

Too many variables: boiler size(not furnace) size of loop size of branch type of radiation water temp. amount of radiation existing/ btuh output amount to be added/ will branch size support added btu's distance and resistance of existing radiator/ run numbers with added radiation circulator/ flow rate

lets start here

do you even know what a mono flo system is and how it functions?

kenny b