Baseboard heaters replace wye with tee

[Joseph M Thein]

Hi everyone!

Another baseboard heating question. I have a single zone baseboard heating system on a smaller ranch house. The supply splits into two pipes, one runs along the front of the house and one runs along the back of the house. 3/4” pipe on the supply. When both pipes reach the end of the house they both terminate into a wye that increases to 1” and returns to the boiler. The 1” pipe is currently hanging from the joists returning to the boiler.


I am currently renovating my basement and I don’t want anything hanging from the ceilings that I would have to box out. I would like to replace the wye with a 1” tee and run 1” Pex back to the boiler tucked within the joists. Is there any issue with flow to run a tee instead of a wye when returning to the boiler?

Thanks in advance!

 

[Fitter30]

1" pex .875" id. How long is the run and number of fittings? Use oxygen barrier pex. From wye to tee would use whatever the pipe material is now since it's 1" id and pex fittings are 1/8" smaller than id.
Page 5 pex temp limits
ht tps://www.google.com/url?q=https://plasticpipe.org/common/Uploaded%20files/Technical/TN-52.pdf&sa=U&ved=2ahUKEwjntrK17qGIAxVpv4kEHcBUKnoQFnoECAEQAw&usg=AOvVaw21xejApxdtTCU1j2pQI6CU

 

[Sponsor]

 

[Joseph M Thein]

1" pex .875" id. How long is the run and number of fittings? Use oxygen barrier pex. From wye to tee would use whatever the pipe material is now since it's 1" id and pex fittings are 1/8" smaller than id.
Page 5 pex temp limits
ht tps://www.google.com/url?q=https://plasticpipe.org/common/Uploaded%20files/Technical/TN-52.pdf&sa=U&ved=2ahUKEwjntrK17qGIAxVpv4kEHcBUKnoQFnoECAEQAw&usg=AOvVaw21xejApxdtTCU1j2pQI6CU

Thanks for your response. From the new tee to an elbow that is going down into the return of the boiler is approximately 29 feet.

Is there any benefit of having a tee verse a wye?

 

[Fitter30]

Thanks for your response. From the new tee to an elbow that is going down into the return of the boiler is approximately 29 feet.

Is there any benefit of having a tee verse a wye?

Wye is better plus its been working. Tee can be piped two different ways with two supplies. Two supplies piped into run ( straight connections) or one run and the bull (side outlet) recommended.