Paulcmaine
New Member
I am installing a 160,000BTU tankless unit in my home. My main gas line is 1" and the run to the water heater is about 10'. Unfortunately all the tee fittings on the trunk line are 1x1x1/2. There is a capped tee right by it and it would be very easy to tap in but replacing a tee is going to be quite a bit of work I would rather not do as I'm already tight on time. What is the likelihood I can get away with using the 1/2" tee? It is my own home so there's no real cost other than a small amount of wasted time if it doesn't work, unless I am likely to damage the water heater by underfeeding it.