Pressurized vs. Non-pressurized water heaters
Pressurized vs. Non-pressurized water heaters
(OP)
Working on a hot water dispenser. What's some pros and cons for pressurized vs non-pressurized tanks? Most water heaters are pressurized and I'm trying to see if non-pressurized tanks are at a disadvantage in terms of flow performance. The inlet pressure let's say is 20 psi





RE: Pressurized vs. Non-pressurized water heaters
But, not all water heaters are ASME rated tanks, though. For a hot water dispenser, you can likely go with a non ASME rated tank.
RE: Pressurized vs. Non-pressurized water heaters
For low flow rates a low pressure is suitable. It is often easier to regulate the pressure of the inlet water rather than making sure that you control the maximum pressure of the hot water.
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Plymouth Tube
RE: Pressurized vs. Non-pressurized water heaters
David
RE: Pressurized vs. Non-pressurized water heaters
Well lets just say I have close to a gallon holding tank that's an open system. Would 100% Relative humidity even be significant with such a small volume to affect power consumption. The reason I'm asking is I wanted to stray away from the purge vent valve of a closed system and just have the tank open to atmosphere and also move away from a pressure vessel tank. Since it is going to be directed to the drain, I wouldn't have to worry about water expansion and it would just leak to the drain.
RE: Pressurized vs. Non-pressurized water heaters
Richard A. Cornelius, P.E.
WWW.amlinereast.com