Heating Help

Aquastat

Is there any book that will give me the specs. for residential aquastats? Also can I use a  RIB to switch on off a small taco circulator?

Aqustat

This should help.
http://customer.honeywell.com/techlit/pdf/69-0000s/69-1720EFS.pdf

Aquastat

Another link:

http://customer.honeywell.com/Honeywell/UI/Pages/Catalog/ComponentCategory.aspx?Catalog=Homes&Category=Single+Function_3637&ChannelID={2EB2F178-20ED-44E0-97FB-CCFB4218DD64}

And yes, you can control a pump with a RIB.  Perhaps more expensive, I prefer to use a relay specific for hydronic heating like a Taco SR501.  The wiring is easy and the diagnostic lights make it simple to troubleshoot.

http://www.taco-hvac.com/uploads/FileLibrary/SR501-845RP102-105.pdf