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Posted by HeatPro on November 30, 2005 at 14:43:02:
In Reply to: Re: To HeatPro and Joe Brix posted by Dave on November 30, 2005 at 14:35:59:
Yes, two ports for each is better than one restriction. A 2x2 hole is 3 sq inches. One 3/4 hole is half a square inch and a 1-inch hole is 3/4 of a square inch. So using a 1 and a 3/4 tapping is 1.25 sq inches in and the same again out. Two holes together is half a 2-inch hole, which is better than 1/4 that hole.
That is why I said I preferred the boiler manufacturer's tank with the 2-inch taps.