adding zone, please review my design

heatingFun

Our existing CI baseboard one zone water heating system is not enough now. We are starting finish the basement and planning to replace the family room’s electric heating with water heating. The boiler is 2yrs old Burnham alp105 gas boiler and supposes it is big enough for the coming new baseboards.

We plan to do the following:<ol><li>Split two bedrooms out from the existing zone, add the family room, which is using electric heating now, into it;</li><li>Add one zone for those two bedrooms and another downstairs bedroom;</li><li>Add another zone for all basement rooms, except the bedroom and utility room;</li><li>By using Heatloss Explorer 2, I figured out the family room needs about 30ft Slant Fin 30 baseboard. I will do the heat loss calculation for basement later.

I have two diagrams, attached or bigger version from the link below, to show you what we have now and what the new design is. Please review it and let me know your professional comments.

I also need your help to select new circulators and switch relay (zone control panel).

Bigger version diagram link:

 

<a href="http://www.flickr.com/photos/bostonjames1980/sets/72157629115886707/detail/">http://www.flickr.com/photos/bostonjames1980/sets/72157629115886707/detail/</a>

thanks

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