I have several of these :
http://www.mannlakeltd.com/infopage.asp?idPage=25and one of these:
holds the most and the polystyrene insulates a little,
http://www.betterbee.com/products.asp?dept=409The top one the mann lake I bought the inserts, cheaper and easier by they do tend to build bur comb on the underside. The plastic ones you are looking at don’t look like you would have that problem and it looks like they are cheaper also cheaper shipping. But they also look like they would hold less.
The others you are looking at look like they are rather elaborate and heavy. I think that it would be hard to get into the hive with them on without making a mess.. Also more expensive and the shipping…
The more hives I get the more I appreciate cheap and easy. I’m probably going to try baggies next year, or community feeding, just to see.
Top feeders are big and unmanageable when full or even part full, makes inspection more of a chore but makes filling and feeding a large quantity easier.
Right now I am using division board feeders. $5 Cheap..
http://www.mannlakeltd.com/ProductDetail.asp?idproduct=484&idCategory=Note that these are the mediums which is what I run…. So if you order be sure to get the right size for your boxes. I think that they make a 2 gallon one in a deep size.
These are nice because inside the hive where they can get to when it is colder. They work well but you need to put some screen in so they can climb out. You can use to feed straight sugar in winter. They need refilling more often, but much easier to inspect hive. Also easier to clean the feeder itself.
For spring and new hive I think top feeder.. for fall and late fall winter division board.
Just my thoughts,
Alfred