American Sprinkler In The US, Sprinkler Systems Are Fitted To Houses?

In the US, sprinkler systems are fitted to houses? - american sprinkler

I fit here in the United Kingdom. The prize is £ 3000, and I want to install 4, one in each room upstairs from me.

I have experience as a plumber and was hoping that keeping such a system. Well, where do I buy heads? Those that are activated by heat.

I want four points irrigation wet, and it is impossible to buy in the UK without a complete system. Ideas?

If I were a U.S. system of fixing points to15mm copper pipes?