From: chamilton5280@invalid.com   
      
   On 2025-10-19, Retirednoguilt  wrote:   
   > 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?   
      
   Air source?   
      
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