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Yep, they're tank in tank, the surface area isn't massive though, it's only about 2.8sqm, which for a heat pump isn't large, so recovery wouldn't be that rapid.
You're thinking is similar to mine, reconfigure it as two Cylinders for the Hot Water and use 2 as buffers for the heating, with priority on the Hot Water and gas boiler to kick in if rapid recharge needed. - that way 600 litres should be enough - that's only 12 showers @ 5 mins @ 9 litres/ min, though if teeing off at 20 min intervals it gives nearly 60 mins for recovery b*gg*r*d if they do a shotgun though when all 72 players finish at the same time! No heat pump would ever keep up with that, hence the gas boiler.
Even so 600 litres buffer and 600 litres hot water is still on the small side - we put a minimum of 50 litres per KW buffers in for heating on Heat Pumps - so that would mean at least 2000 litres just for that, and for the hot water, if no rapid heat source backup, then 900-1200 litres.
Just done a quick calc: 9 showers running at 9 litres per min, raising temp for 10° (ambient) to 35° requires an input of 145kW! Which is why even a house combi running one shower need to be at least 16kW, with losses = 20kW
At the moment no RHI as it was installed and commissioned before A2W was permitted for Commercial RHI, though if re-configured with new HP's if the manufacturer will step in and save face, it could be.
Who did it? Couldn't possibly say, however if you check out the information I've provided a quick Google search with the key information in will enable you to find out
You're thinking is similar to mine, reconfigure it as two Cylinders for the Hot Water and use 2 as buffers for the heating, with priority on the Hot Water and gas boiler to kick in if rapid recharge needed. - that way 600 litres should be enough - that's only 12 showers @ 5 mins @ 9 litres/ min, though if teeing off at 20 min intervals it gives nearly 60 mins for recovery b*gg*r*d if they do a shotgun though when all 72 players finish at the same time! No heat pump would ever keep up with that, hence the gas boiler.
Even so 600 litres buffer and 600 litres hot water is still on the small side - we put a minimum of 50 litres per KW buffers in for heating on Heat Pumps - so that would mean at least 2000 litres just for that, and for the hot water, if no rapid heat source backup, then 900-1200 litres.
Just done a quick calc: 9 showers running at 9 litres per min, raising temp for 10° (ambient) to 35° requires an input of 145kW! Which is why even a house combi running one shower need to be at least 16kW, with losses = 20kW
At the moment no RHI as it was installed and commissioned before A2W was permitted for Commercial RHI, though if re-configured with new HP's if the manufacturer will step in and save face, it could be.
Who did it? Couldn't possibly say, however if you check out the information I've provided a quick Google search with the key information in will enable you to find out
