Last seen: Apr 14, 2025
@jamespa Quick one for your information. Specs for Hitachi 3HP heat pump which one member of this forum has. Note min/max power. Ratio 2.1/11 = 19%.
@jamespa There is a lot here but I wish to deal with the fundamentals first. Firstly, you have ignored the statement by Graham Hendra that he has ...
@jamespa Firstly, I can confirm that the Daikin heat pump in the example was producing 8kW output during the cold spell in January. Regarding thi...
On the published graphs, you can put your mouse over any part of the graph to read the actual value at any point. This is NOT a calculation. I am mere...
@jamespa Sorry, I should have added the word "theoretically" as I was trying to rationalise the theory behind Grant's 8C philosophy. Whether heat pum...
@robs Thank you for this. I had forgotten about Ecodan, especially as I have one with its dangly NTC leads. I presume the example is a 5kW unit. This...
@grantmethestrength Do you know what your DT was when you were heating at -2C outside? This will give an indication of what your peak heat load was....
@pooneil I have a Gen 4 Samsung. The setting on mine is 25C @ 15C. 25C is the lowest base temperature and the flow at 16C or 17C will still be at 25C....
@pooneil It sounds like the settings are all over the place and you are maybe misunderstanding some things. Let’s get back to basics at the risk of te...
@bontwoody If you look at the diagram, at 19.00 when power is over 3kW, the DT is 5C. If you look around 11.00 when power is ~2kW, then DT is 3C. In b...
@bontwoody Your Samsung Gen 6 has interesting behaviour which is different to the stereotypical belief. It boosts output at the beginning of the cycle...
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