- Jul 28, 2013
- 724
- 66
- 28
- Member Type
- General Plumber
Very expensive to run and ****e flow rates! I don't see the money saving on a thermal storage with combi. Dhw running all the time costing money and the flow rates are not that high unlike With a system boiler with a mains pressures all round and a 2nd coil for your vacuecated tubes to pre warm the dhw inside cylinder.