can anyone tell me what my heating system is called please. 1.ideal classicboiler 2.hot water cylinder with a electric emersion on it 3.2 tanks in the loft 1 big one and 1 smaller one at the side of it 4. got 2 pipes side by side coming out of the top of the house just above bedroom window 5.pump in the airing cupboard 6 . a silver round box also on one of the pipes in the airing cupboard 7.can heat hot water and central heating at the same time 8.near the hot water cylinder theres a drayton actuator wot ever that is 9. above the boiler theres the same thing that looks like this actuator