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Found 2 results

  1. sonicboom
    I am planning on upgrading my 10 year old PIV system to an MVHR. What kinds of efficiencies should I expect at current temperatures (-2.5c). My PIV churns out a draughty 7c and that is with the 400w heater enabled. i would ideally like something above 19c (internal temp is 22c 24/7). I have my eyes on the Zehnder Q350 which goes up to 96% but they do not produce charts on how that performance degrades as the temperature drops.
  2. Ferdinand
    Can anyone quote me a specific example or two of the efficiency level of an MVHR system, and supporting data? I'm having a debate elsewhere (about how far we can reduce energy demand in narrow boats, of all things), "90%" has been quoted for MHVR efficiency (I had quoted 75%-80% for HR extract fans), and someone has asked for evidence for the 90% 🙂. Thanks Ferdinand
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