I've noticed from the forum that the Grundfos's model has been changed to CM-CME series. (maintenance free model)
Anyone can advise me what is the (a) new model's name of (that is in the series of CM & CME) [CME is equivalent to "UNI E" series right?) (b) price?

[ OLD ] = [ CM ] = [ UNI-E ]
1. CH2-40PC = X = X
2. CH2-50PC = CM3-5PC = UNI-E CM3-5
3. CH4-40PC = CM5-3PC = X

CH2-40PC = 0.5HP; CH2-50PC = 0.75HP; CH4-40PC = ?? HP

Since the water pump will be installed on the top roof of the bedroom, it's advised to get the "E" series as it's quieter?

I've seen a house installed with (not sure what's the brand) the 0.5 HP water pump and it's very strong even with 2 showers on. Supposingly, 0.5 HP water pump is sufficient I think.

[edited: found out about some of the new name in the new series]

This post has been edited by mozane: Jul 30 2013, 02:44 PM

Sorry, need some inputs if any of you know?

1. I know that "PC" model is maintenance free. how about UNI-E series (by picture, it looks more like the PT series that requires pump in the gas every year)?
2. is "UNI-E" really quiet compare to the "PC" series? how many % quieter comparing to the "PC" series if you have any rough ideas

Thanks

This post has been edited by mozane: Jul 30 2013, 02:38 PM

Unfortunately I'm unable to answer you as I'm unfamiliar with them either. Need the expert to give you advise
Anyway, I don't see any series of "PM", only "PC", "PT" or "UNI-E" that I know of.