
Boiler radiant with solar assisted DHW (system 2)
Gas boiler radiant floor heating, with primary solar assisted domestic hot water tank. Drain-back solar design with overheat protection.
Four pumped zones with low-loss header.

Boiler radiant with solar assisted DHW (system 1)
Gas boiler radiant floor heating, with primary solar assisted domestic hot water tank. Drain-back solar design with overheat protection.