Control central heating for pc

Hi experts, I'm a software developer who develops with visual studio (, c#). I want to develop a pc software for my home automation system that will allow me to turn my hot-water and heaters on from a pc. Is this possible? Is there a Central Heating Controller out there equipped with some sort of wireless protocol or serial port that can make my dream a reality?
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Is this the kind of thing your after

I have often thought of doing the same thing as you.  If you google usb relay controller / serial ethernet etc.

a lot of these products come with their own dll / APIs to make the coding easier.

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This site is really good too

carl5121Author Commented:
Thanks Ross-C
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