4000sposse Posted July 30, 2015 Report Share Posted July 30, 2015 This picture is the top of a high efficiency direct vent boiler, used for radiant heat and a hot water tank. Why are there tees and reductions on both the exhaust and intake? I have never seen this and can't figure out what is going on here. Click to Enlarge 39.19 KB Quote Link to comment Share on other sites More sharing options...
Marc Posted July 31, 2015 Report Share Posted July 31, 2015 Perhaps the answer lies in the manufacturer installation instructions for that boiler. This is the first I've ever heard of such changes in vent sizes. Would you have the Make and Model for that boiler? Marc Quote Link to comment Share on other sites More sharing options...
Tom Breslawski Posted July 31, 2015 Report Share Posted July 31, 2015 Do you have a picture from the other side? One that shows them a little closer. Quote Link to comment Share on other sites More sharing options...
4000sposse Posted August 1, 2015 Author Report Share Posted August 1, 2015 It is a Triangle Tube Prestige 250. The install manual doesn't say anything about allowing either exhaust or intake to be split like that. Plus this is a 4" teed into two 2" pipes. The cross section area of 4" is about double that of the area of two 2" pipes. There is no way this is right. Here is the leaking exhaust Click to Enlarge 34.07 KB Quote Link to comment Share on other sites More sharing options...
Tom Breslawski Posted August 1, 2015 Report Share Posted August 1, 2015 What a mess. Quote Link to comment Share on other sites More sharing options...
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