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Daikin Altherma 3 LT compressor longevity question  

By Ubert767, 1 day ago

Forum Air Source Heat Pumps (ASHPs)
  Are the multiple and frequent changes in power input to a heat-pump considered to be detrimental to compressor longevity???? I assume it is due to the control electronics trying to do it's thing in ...
Transparent RE: Jokes and fun posts about heat pumps and renewables  

By Transparent, 1 day ago

Forum Well & Truly Off The Grid
  Technology is rapidly advancing. BBC News reported that three armed drones crossed into Kuwait. Innovative! That's 50% more than I have.
bobflux RE: 6 meter run of pipe from the outside to the UniSTOR Pure 200lt cylinder: do I go plastic or copper?  

By bobflux, 1 day ago

Forum Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
  What matters for flow and pressure drop is internal diameter. Thus 32mm MLC (26mm internal diameter) is equivalent to 28mm copper (also 26mm internal diameter). Ultraviolet from sunlight destroys PEX,...
Toodles RE: Do Fridges and Freezers have COP ratings?  

By Toodles, 1 day ago

Forum Air Source Heat Pumps (ASHPs)
  @editor Thank you all for your replies and submitted information - I feel my curiosity has been satiated! I wonder if the awful GWP for the refrigerant in that drinks fridge is there to encourage you ...
Mars RE: Do Fridges and Freezers have COP ratings?  

By Mars, 1 day ago

Forum Air Source Heat Pumps (ASHPs)
  I looked into this a few years ago, and yes, fridges and freezers have a COP because it’s the same thermodynamic principle as a heat pump, but they don't use the metric. I guess it might be too confus...
JamesPa RE: Electricity price predictions  

By JamesPa, 1 day ago

Forum Electricity, Tariffs, Monitoring & Providers
  Electricity retailers offer fixed price deals. By agreeing the purchase price in advance they can manage the risks. Electricity generators probably buy fuel in advance as well (obviously not renewab...
Batpred RE: Electricity price predictions  

By Batpred, 1 day ago

Forum Electricity, Tariffs, Monitoring & Providers
  @transparent 😀 Clearly there are risks involved in any business transaction. I can see how this could work but remain curious about the relevant mechanisms in our electricity market!
RE: Do Fridges and Freezers have COP ratings?  

By upnorthandpersonal, 1 day ago

Forum Air Source Heat Pumps (ASHPs)
  Technically they do, and you could calculate it (and is used for the energy efficiency rating), but it's not something that is generally reported directly for fridges. Air conditioning (cooling heat p...
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