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RE: Midea ASHP – how to set weather compensation  

By pash44pump, 1 week ago

  So now I have completed my heat loss calculations and I get a total property heat loss of 12502 against the installer's calculations of 8610. I have used 2006 building regs for all ACH numbers (0.7).
RE: Midea ASHP – how to set weather compensation  

By Tasos, 1 week ago

  (a) The thermostat will work only if you exceed the desired temperature (in case WC does not work properly), to save you money. (b) if you want independent control in each room, you have to install th...
RE: Midea ASHP – how to set weather compensation  

By Tasos, 1 week ago

  WC is more stable because it modulates the inverter and thermostat based control has, currently, on-off behavior. It is not the information that is wrong, it is the way it is used. This is my point: t...
RE: Midea ASHP – how to set weather compensation  

By pash44pump, 1 week ago

  @jamespa I woke up this morning (at 4.45am!) thinking about exactly that and I have been looking into the ACH numbers on the Freedom Pumps xls. To me a number of 1.5 x per hour for ACH in a living roo...
RE: Boiling Mad: Exposing Radiatorgate  

By DREI, 1 week ago

  Actually they do. My case is a prime example. Catalogue provided by my installers dated 2022 (January 2023 according to Adobe Metadata) output, vs same manufacturer catalogue dated late 2023 and lates...
RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House  

By DREI, 1 week ago

    Blunt answer? The 20-year-old gas system was failing, and I had two choices: spend 60% less on a new gas boiler system (we were planning to upgrade the radiators anyway), or take the plunge wit...
RE: Heat Pump SCOPs – The Truth Might Not Be What You Think  

By DREI, 1 week ago

  You can even go as low as 40c flow temp, if you want a high SCOP, as long as your radiators are sized correctly and you use the correct desired room temp, nothing is impossible. I don't think you will...
RE: Heat Pump SCOPs – The Truth Might Not Be What You Think  

By DREI, 1 week ago

  A heat pump is only as good as the desired room temperature. Bearing in mind that optimal room temperature for cognitive function sits between 21 and 24 degrees, with average around 22/23 degrees. 45 ...
RE: Flexi-Orb Heat Pump Scheme: A Game-Changer for the UK's Heat Pump Industry  

By DREI, 1 week ago

  As someone who has suffered from a Heat Pump installation backed by the MSC logo only on paper, without any help when things went wrong, I would love to see homeowners have other choices.
Mitsubishi ecodan PUZ-WM112VAA outdoor unit firmware update  

By Vinz86, 1 week ago

  Hi, my ecodan PUZ-WM112VAA is currently running on firmware version 5802, I was told that the latest version is 5809. Is there any ecodan installer that can apply to update to the outside unit? Or if ...
RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House  

By JamesPa, 1 week ago

  @drei Based on your recent posts, I am wondering what your original motivation was for a heat pump. I do understand you have had a poor experience (which hopefully will get fixed), but setting this a...
RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House  

By JamesPa, 1 week ago

  I completely agree. The extent to which heat pump controllers allow you to do this and at the same time do things like set back/set forward seems to vary quite significantly. Daikin, as you say, and...
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