From: HapilyRetired@fakeaddress.com   
      
   On 10/19/2025 12:51 PM, RJH wrote:   
   > On 19 Oct 2025 at 17:41:28 BST, Retirednoguilt wrote:   
   >   
   >> the expense of installing air ducts   
   >> would probably preclude amortizing the savings from a heat pump in fewer   
   >> than 10-15 years.   
   >   
   > ASHPs in the UK are mostly used in wet heating systems, and directly replace   
   > conventional boilers - no ducts.   
      
   Please define ASHP.  I assume the HP refers to heat pump, but what's the   
   AS?  Also, if there aren't any ducts, how can someone take advantage of   
   the ability of heat pumps to provide hot weather cooling in addition to   
   cold weather heating?  If you cool by blowing a fan over circulating   
   chilled water, how is the air de-humidified?  The circulating water is a   
   closed system.  Do you require a separate fan, condenser and condensate   
   collector and connection to a drain in each room where such a device is   
   located?  Seems less energy efficient and noisier than a central system.   
    The cost of installing a condensate drainage connection in every room   
   might equal the cost of installing air ducts.  The only advantage I can   
   think of is that you can control the temperature individually for each room.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)