Many people can clearly see the advantages of baseboard heating hot water - it is compact and unobtrusive in a room you have carefully decorated, yet these systems are still capable of providing serious radiated heat. Radiated heat is economical to run and gives a lovely warmth that fills the room without blowing all the dust all over the place like fan systems do.
One of the different styles of home hot water boilers is needed to make this system run. This can be gas or oil-fired, coal or wood fueled, or the water can be electrically heated.
On top of this boiler there needs to be some way to get the water from baseboard unit to unit - this is a pump. Pretty much that is all you need for baseboard heat hot water systems. Not really all that much to it, when you think of the final result.
And though many people find the baseboards themselves quite acceptable to look at, if you do not, there are plenty of specially designed baseboard hot water heat covers available. Buy the things that are designed for the job however - home made attempts (for instance hiding the unit behind the sofa) will stop the units from heating the room properly.