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Marvin

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Everything posted by Marvin

  1. Marvin
    Yes each individual property has its own drawbacks and benefits. No one size fits all! I could not sensibly position the ASHP on an outside wall so it is on a flat roof!
  2. Marvin
    Hmm. I noticed last week that either I cut all of my foam pipe insulation short 4 years ago or it has shrunk.... I understand your quote above to be true. Hence sealing all cut edges....
  3. Marvin
    Thanks. Better than a quiz over Christmas!
  4. Marvin
    Hi @puntloos I could not name one but if you have an external wall to the office I know there are some available in the market, and that sort (in and out external wall would be most sensible rather than ducting across the universe) Other people here will be able to help. (My guess is search single room MVHR or AIRCON). M
  5. Marvin
    It no longer squeaks
  6. Marvin
    Now this is fun! What's the passmark?
  7. Marvin
    I think your right about the maths. Espically as I think you can only use about 35% of a batteries capacity. I use this one for PV calculations: https://www.google.com/url?sa=t&source=web&rct=j&url=http://re.jrc.ec.europa.eu/pvg_tools/en/tools.html&ved=2ahUKEwjewPf1qfXzAhVSsKQKHXFiC_UQFnoECB8QAQ&usg=AOvVaw2-K48UEog42OCvQZSZqZxU Tricky on mobile to use otherwise ok. M
  8. Marvin
    Surely @zoothornif you live in the wild west its warmer than 5C over Night??
  9. Marvin
    I turn the ASHP control to "no demand" when not in use. Last night here on the Isle of Wight the low was 12C what was your outside temprature at 2.30am that causes your ASHP to need to defrost??? Our antifreeze will go down to minus 8? AM I missing something?
  10. Marvin
    Then IMHO I think you will only get success from an independent system in the office using an inlet and exhaust and air sealing the door if you have an MVHR.
  11. Marvin
    The design I am work is intended for heating and cooling, but it is not without its challanges.
  12. Marvin
    Two of the CWH 160-3 MODELS:
  13. Marvin
    Yes. Honest. After I finished insulating it.
  14. Marvin
    The box is an insulated water coil:
  15. Marvin
    Hi ashp, mvhr, pv, ev and duct water coils. I am just starting to bring all the above elements together in our bungalow and wanted to run the works on a blog on Buildhub. In order to show my appreciation of this site I have funded buildhub and PMed @newhome as requested. I have also PMed @BuildHub to ask about setting up a blog. I hope that the volenteers on buildhub will be able to help find the time so I can document what I'm doing. Also as I go I hope that feed back from the members will help me when I struggle. Here's where I am at present: Marvin
  16. Marvin
    I'm also with ProDave. The outside temp has to be below 8C and or windy. otherwise we slowly overheat. If I was burning 1000W continual this place would cook. I mostly view the electricity I use in the house as creating heat in the building ( apart from charging the car, ASHP and outside lights). All cooking, Internet, TV, washing and dishwasher have this effect. The other item I'm working on is the solar gain: although only for short periods it requires as much power per hour to keep the place cool as heating does per hour in the dead of winter.
  17. Marvin
    My MVHR has to be balanced between air coming into the building and air going out. It also mixes the temprature in the building air with the temprature of the outside air coming in, OR, expells the inside air temprature and just supplies outside temprature air into the building. If your have the same set-up my thoughts would be: You could push the hotter air out of your office by supplying outside temp air in, however where will it go? Into the rest of the building. Will this be ok during the summer when the air coming in could already be 25 degrees C? My utility room is always to hot. I only extract the air from the room. In the winter my MVHR recycles the heat as in my first paragraph and in the summer expells the heat.
  18. Marvin

    Surveys

    Marvin replied to nod's topic in Surveyors & Architects

    I don't think anything is missing. Builders have been doing this with FPP info for years... except they usually change bits to make it look different.
  19. Marvin
    Welcome. I'm sure someone will be able to help... Marvin
  20. Marvin
    Except if the controls are exposed the door will be shorter.
  21. Marvin
    As I commented.....
  22. Marvin
    My simple logic always said that the cold would come from the window so I put the radiator under the window, the theory being that the cold air didn't have to travel across the room to warm up. I think I had the idea after standing in a room in front of an open fire with my face hot and my butt cold.
  23. Marvin
    Welcome. Plan your work and work your plan Marvin (Not like me still retrofitting)
  24. Marvin
    +1 lots of external work on timber recently using this.
  25. Marvin
    Good luck and remember: The only stupid question is the one you didn't ask. Marvin.
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