Down rate the boiler if needed (d.0) - what does that mean.....
More twaddle from agile... The lower the flow temperature the lower the return temperature and the lower the flue temperature and the higher the boiler efficiency..
The skill then is to design a system that operates at the lowest possible temp as much as possible..
This cannot be done withou seperating the DHW reheat from the Heating demand, or with manual mixing valves that blend the heating water temperature down from an unecessarily high flow temperature
if you don want to pay for heating dont use it...
The long heat up time of UFH means there is probaly little benefit in short time periods..
In this industry there are lots of ons...the boiler, the controller the room thermostat, the boiler thermostat..and yhen yhere ate degrees of comfort too
Your test will be interesting..
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