From: robin_listas@es.invalid   
      
   On 2025-10-19 03:54, Ed P wrote:   
   > On 10/18/2025 9:42 PM, hubops@ccanoemail.com wrote:   
   >> On Sat, 18 Oct 2025 19:50:39 -0400, "David. R"   
   >>  wrote:   
      
      
   > How efficient is a 20 year old oil boiler?   
   > A 20-year-old boiler can be significantly inefficient, often operating   
   > at around 60-70% efficiency, compared to modern condensing boilers,   
   > which can exceed 90%. This inefficiency can lead to higher energy bills.   
      
   Can you have an oil fired condensing boiler? I read that they need very   
   clean fuel, meaning gas, because otherwise the exhaust is acid vapour,   
   quite corrosive. If I remember correctly, because of the sulfur content.   
      
   --   
   Cheers, Carlos.   
   ES🇪🇸, EU🇪🇺;   
      
   --- SoupGate-Win32 v1.05   
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