• 1 Post
  • 10 Comments
Joined 1 year ago
Cake day: June 13th, 2023
  • reattach@lemmy.worldtohomeassistant@lemmy.world•Does anyone know a way of calculating the energy needed to heat a home/room?English
    4·
    8 months ago

    If you’re measuring the temperature in the room currently, you could try trending it yourself. Start the heater, and see how quickly the temperature rises (e.g., degrees per hour). Call this Rate 1.

    Then turn off the heat and see how quickly the temperature drops. Call this Rate 2. For the formula below, make it a positive number.

    Assuming the weather conditions are similar and the room temperature doesn’t change too much during data collection:

    Rate of heat loss = Heater power * Rate 2 / (Rate 1 + Rate 2)

    This number could be impacted by the weather: temperature, wind and insolation (affected by time of day, time of year, latitude, and cloud cover). It’s also impacted by room conditions (temperature, slade position, how many times the door is opened), so you’d need to do a few trials to get a sense for thr impact of different variables.

    You’ve probably already thought of this, but your strategy is going to result in noticeable swings in temperature in the room, because ypure going to do a lot of heating at once when prices are cheap, then turn off the heating and let the room cool. Compare that to a thermostat that tries to maintain a constant temperature.

    Sounds like a fun project - good luck! I’d love to hear updates here as you go.

  • reattach@lemmy.worldto196@lemmy.blahaj.zone•shopping rule theory
    9·
    9 months ago

    I’m not judging you, but to offer another perspective to anyone reading this thread: I am a parent of two young children, and have never not returned a shopping cart. I take the kids with me when I return it.

    As a parent, I realizes that it’s harder to do things with kids than without, but I go out of my way to not pass that burden onto others.

    There are many ways our situations could be different that would make it harder for you to do this than me - your reasons are completely your business.