Infer radiator spec and system volume using the MyHeatpump app

[Timbones (Tim)]

@TrystanLea

It would be interesting to see how well the standard radiator output equation matches the data:

I’ve been working the other way: adjusting the heating parameters to match the equations:

Calculating the optimal weather compensation curve

Continuing the discussion from Infer radiator spec and system volume using the MyHeatpump app I’ve been combining the formulas for radiator output with my calculations of heat loss coeffiecient to produce the optimal weather compensation curve for my property: Radiator output at Δ50: 18,000W Target room temperature: 19 C Heat loss coefficient: 260 W/K + 880 W Minimum heat pump output: 4,000 W (though this varies with COP) Flow - return delta: 5 K [image] My calculations: Heat loss = (out…