i'mstihlaguy
ArboristSite Operative
Copied this from the description for a side arm for sale on eBay:
THERE ARE LOTS OF PEOPLE SELLING HOME MADE CHEAP SIDEARMS. THE INNER PART OF THE SIDE ARM MUST BE ROLL THREADED the pic is of just the inner tube you will be getting the whole system with the 1 1/2 inch copper on the outside as well.THE SECOND PHOTO SHOWS THE ROLLED THREAD. THIS MAKES THE WATER SWIRL AROUND AND MAKES FOR THE BEST HEAT TRANSFER. IF IT DOES NOT HAVE THIS INNER ROLL THREAD YOU WILL NOT BE HAPPY. IN FACT IF YOU ARE NOT HAPPY WITH OUR SIDE ARM SIMPLY RETURN IT FOR A REFUND OF YOUR PURCHASE PRICE. THIS UNIT WILL WORK ON 40 GAL UP TO 150 GAL HOT WATER HEATERS.
O ur outside copper tube is 1 1/2 inches . Our inner copper tube is very thick, much thicker than others and is a THICKER copper for long life . important as if this inside tube fails or leaks it will mix the 2 waters and could kill you.others want you to believe the thinner copper has better heat transfer.NO THEY ARE JUST SELLING YOU A CHEAPER UNIT THAT WILL NOT LAST AS LONG AND PUT YOU IN DANGER . THE DESIGN OF THIS SYSTEM MAKES IT IMPOSSIBLE FOR THE 2 WATERS TO MIX OR LEAK.
I am sure many of you have already seen this but I have two questions:
1. The inner pipe is threaded on the O.D. Looks like this would cause turbulent flow but does anyone know if it really makes any difference?
2. Is the seller just trying to use scare tactics about the inner pipe's thickness? I was told you want it to be thin to help heat transfer.
THERE ARE LOTS OF PEOPLE SELLING HOME MADE CHEAP SIDEARMS. THE INNER PART OF THE SIDE ARM MUST BE ROLL THREADED the pic is of just the inner tube you will be getting the whole system with the 1 1/2 inch copper on the outside as well.THE SECOND PHOTO SHOWS THE ROLLED THREAD. THIS MAKES THE WATER SWIRL AROUND AND MAKES FOR THE BEST HEAT TRANSFER. IF IT DOES NOT HAVE THIS INNER ROLL THREAD YOU WILL NOT BE HAPPY. IN FACT IF YOU ARE NOT HAPPY WITH OUR SIDE ARM SIMPLY RETURN IT FOR A REFUND OF YOUR PURCHASE PRICE. THIS UNIT WILL WORK ON 40 GAL UP TO 150 GAL HOT WATER HEATERS.
O ur outside copper tube is 1 1/2 inches . Our inner copper tube is very thick, much thicker than others and is a THICKER copper for long life . important as if this inside tube fails or leaks it will mix the 2 waters and could kill you.others want you to believe the thinner copper has better heat transfer.NO THEY ARE JUST SELLING YOU A CHEAPER UNIT THAT WILL NOT LAST AS LONG AND PUT YOU IN DANGER . THE DESIGN OF THIS SYSTEM MAKES IT IMPOSSIBLE FOR THE 2 WATERS TO MIX OR LEAK.
I am sure many of you have already seen this but I have two questions:
1. The inner pipe is threaded on the O.D. Looks like this would cause turbulent flow but does anyone know if it really makes any difference?
2. Is the seller just trying to use scare tactics about the inner pipe's thickness? I was told you want it to be thin to help heat transfer.