How many tubes are in the panels or what size are they ?
We just fitted 3 panels 75 tubes to a south East facing holiday home we own. There was a 300 liter cylinder in the property so all we needed for that was a heat exchanger & a bronze pump. Did not change the tank.
We did need to get a carpenter to put up scaffold, take slates off the roof & reslate for the panels ( 1.5 days work)
It is a 2 story terraced house with the hotpress on the ground floor.
The total cost labour , materials etc Euro 7000.00
We got Euro 1800.00 of a grant.