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Also, people who set their home heat pump to "auto" instead of "heat" in winter and "cool" in summer. No-one should mind if they have it on 18 in winter and th

by Nition 9y ago

Also, people who set their home heat pump to "auto" instead of "heat" in winter and "cool" in summer. No-one should mind if they have it on 18 in winter and the sun heats the room to 20 in the afternoon, but a heat pump on auto will start cooling to maintain the room at 18.

DiabloD3 9y ago
I also agree, if you have a heat pump do not use auto mode, it will never do what you actually want.
- rplst8 9y ago
  While it's not the best thing to do, it doesn't matter much as the efficiency of the systems go way way up when the outside temp is near the same as the inside temp.
wongarsu 9y ago
I've never understood why we even design most HVAC systems to maintain one temperature. I don't care that my home or car is exactly 18°C warm, I just want to keep it at a temperature between 18°C and 25°C year-round. It feels completely unnatural to be forced to set a single temperature and change it depending on the situation. A less straightforward change for further automation would be to make that temperature depending on the humidity. On a dry day, 28°C is perfectly fine, on a humid day it's way too hot. I can't be bothered to adjust my desired temperature depending on humidity, but a computer could easily do that.
- Nition 9y ago
  Hell yes, let me set a min and a max! Although to be honest where I live, we wouldn't need it. We never really need to heat and cool on the same day.
cestith 9y ago
My system has separate "heat if below" and "cool if above" settings for its program, variable by user-defined portions of the day and by the (pre-set of course) days of the week.
- deleted 9y ago
  [deleted]
- Nition 9y ago
  That sounds excellent. The ones I see are always just one set temperature.
  - cestith 9y ago
    Mine came with the house. I can take a look and find brand and model number. There appear to be a number of them on the market, though. On the Lowes.com site they have a specification checkbox for "high/low temperature setting" or something similar on each model's details but it doesn't seem searchable there. I don't see such a feature designation at HomeDepot.com as of right now. Amazon's are mixed depending on the seller and model it seems. I know Nest lets you set separate heating and cooling points if you do the manual programming instead of letting it autolearn. https://nest.com/support/article/What-is-Heat-Cool-mode https://nest.com/support/article/What-is-Heat-Cool-mode EcoBee and Hive I'm sure have similar features. Having separate heating and cooling setpoints only seems natural for something that automatically switches between heating and cooling.
    - Nition 9y ago
      I'm not in the US (I'm in New Zealand) so the market here is a bit different. Nest isn't available here for instance. Most homes install heat pump units like this kind of thing: - http://www.fujitsugeneral.co.nz/heat-pumps http://www.fujitsugeneral.co.nz/heat-pumps - http://www.mitsubishi-electric.co.nz/heatpump/c/7656/high-wall-mounted-heat-pumps http://www.mitsubishi-electric.co.nz/heatpump/c/7656/high-wa...

by Nition 9y ago

DiabloD3 9y ago

I also agree, if you have a heat pump do not use auto mode, it will never do what you actually want.

rplst8 9y ago
While it's not the best thing to do, it doesn't matter much as the efficiency of the systems go way way up when the outside temp is near the same as the inside temp.

wongarsu 9y ago

I've never understood why we even design most HVAC systems to maintain one temperature. I don't care that my home or car is exactly 18°C warm, I just want to keep it at a temperature between 18°C and 25°C year-round. It feels completely unnatural to be forced to set a single temperature and change it depending on the situation. A less straightforward change for further automation would be to make that temperature depending on the humidity. On a dry day, 28°C is perfectly fine, on a humid day it's way too hot. I can't be bothered to adjust my desired temperature depending on humidity, but a computer could easily do that.

Nition 9y ago
Hell yes, let me set a min and a max! Although to be honest where I live, we wouldn't need it. We never really need to heat and cool on the same day.

cestith 9y ago

My system has separate "heat if below" and "cool if above" settings for its program, variable by user-defined portions of the day and by the (pre-set of course) days of the week.

deleted 9y ago
[deleted]
Nition 9y ago
That sounds excellent. The ones I see are always just one set temperature.
- cestith 9y ago
  Mine came with the house. I can take a look and find brand and model number. There appear to be a number of them on the market, though. On the Lowes.com site they have a specification checkbox for "high/low temperature setting" or something similar on each model's details but it doesn't seem searchable there. I don't see such a feature designation at HomeDepot.com as of right now. Amazon's are mixed depending on the seller and model it seems. I know Nest lets you set separate heating and cooling points if you do the manual programming instead of letting it autolearn. https://nest.com/support/article/What-is-Heat-Cool-mode https://nest.com/support/article/What-is-Heat-Cool-mode EcoBee and Hive I'm sure have similar features. Having separate heating and cooling setpoints only seems natural for something that automatically switches between heating and cooling.
  - Nition 9y ago
    I'm not in the US (I'm in New Zealand) so the market here is a bit different. Nest isn't available here for instance. Most homes install heat pump units like this kind of thing: - http://www.fujitsugeneral.co.nz/heat-pumps http://www.fujitsugeneral.co.nz/heat-pumps - http://www.mitsubishi-electric.co.nz/heatpump/c/7656/high-wall-mounted-heat-pumps http://www.mitsubishi-electric.co.nz/heatpump/c/7656/high-wa...