When I first designed my new well insulated 2500 sq ft house I left the heating and hot water flow and return pipework in the corner of the garage for an oil boiler, now that I am nearing completion I would like to install 6Kw solar PV to heat most of my hot water in the summer and run a heat pump with mains electricity top upin the middle of winter.
The exiting heating pipes are 35mm flow and return which go to a 28mm manifold, one for the ground floor underfloor heating and another upstairs both in solid floors, and the hot water 28mm flow and return pipes to a mainsflow hot water tank in the upstairs airing cupboard with immersions connected by a solar diverter.
It would seem the simplest way of connecting the existing pipework which would have been on either side of the oil boiler is with a large buffer tank (1650mm Ht x 500mm Dia) in between the two sets of pipes.
A small heat pump would be on the other side of the garage wall with a short connection through to a finned coil inside the buffer tank.
Does this seem reasonable?
