Armed Polite Society
Main Forums => The Roundtable => Topic started by: Cliffh on February 27, 2021, 06:06:19 PM
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Is it possible to set a central HVAC unit to heat and cool as required to keep the temp consistent w/o having to change the thermostat setting from heat to cool (or vice versa)?
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Is it possible to set a central HVAC unit to heat and cool as required to keep the temp consistent w/o having to change the thermostat setting from heat to cool (or vice versa)?
I bet it depends on the unit. My mini-split system does that, but I've never used that setting.
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That is how mine works. I have a Honeywell smart thermostat. It's set for various day/night temps, but basically, if it gets below a certain temp, it heats, if above another temp, it cools. For instance, my daytime settings are 69 and 74. Below 69 it knows to turn the heat on, and above 74 it knows to turn the cooling on.
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So it might be as simple as swapping out the thermostat?
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Is it possible to set a central HVAC unit to heat and cool as required to keep the temp consistent w/o having to change the thermostat setting from heat to cool (or vice versa)?
That's how my parents' heat pump is set up -- I hate it, but it's none of my business. It's a Honeywell VisionPRO thermostat with "RedLINK", whatever that is. (it's some kind of wireless thing, but I saw a lot of wires when the HVAC guy installed it.) It can also be setup for heat only or cool only.
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So it might be as simple as swapping out the thermostat?
IDK. It might also depend on your HVAC unit. I have a heat pump for heating/cooling plus a furnace that overrides the heat pump and kicks in (again, via the smart thermostat) when outside temp is under 26deg.
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That's how my parents' heat pump is set up -- I hate it, but it's none of my business. It's a Honeywell VisionPRO thermostat with "RedLINK", whatever that is. (it's some kind of wireless thing, but I saw a lot of wires when the HVAC guy installed it.) It can also be setup for heat only or cool only.
What don't you like about it?
I took a look at that t-stat on Honeywell's site, it got 10 one star ratings out of a total of 15 reviews. They also only sell it to their "Professional Partners". Don't think I'll be using it.
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What don't you like about it?
I took a look at that t-stat on Honeywell's site, it got 10 one star ratings out of a total of 15 reviews. They also only sell it to their "Professional Partners". Don't think I'll be using it.
I don't like if it's cool in the morning but going to be hot just a little later, the heat comes on. Part of the problem (it's my problem, not theirs) is they keep the house very warm with a narrow band. I think it's set for 75-78 degrees.
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This is a function of the thermostat, not anything else.
When I bought my house I upgraded the thermostat to do this. I bought the dumbest, cheapest thermostat that had "auto switchover" capability.
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Like Ben and zahc implied, should be a simple stat swap. All the air handler knows is "call for heat" or "call for cool". The stat handles the thinking. Get one that has Auto Changeover function and you should be good.
https://www.homedepot.com/b/Heating-Venting-Cooling-Thermostats-Programmable-Thermostats/Auto-Changeover/N-5yc1vZc4kcZ1z18upl?storeSelection=
Brad
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Thanks all.
I'll be looking into a new thermostat. Brad's link ought to keep me busy for a while. =)
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What don't you like about it?
I took a look at that t-stat on Honeywell's site, it got 10 one star ratings out of a total of 15 reviews. They also only sell it to their "Professional Partners". Don't think I'll be using it.
I have their Vision Pro 8000, installed by the HVAC crew when I got the new HVAC installed. I have to say I've been very happy with it.
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A Nest will, which is what we have. We also have it set to heat the house five minutes before we wake up in the morning.
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I have an Ecobee smart thermostat that i can set in a range and it will heat or cool as required. It is controlled on the unit, througb an app or Alexa. I took them from my son's house when I sold it. I like it.
bob
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This house had one of those "smart" thermostats when we bought it 9 years ago. I swapped it out for 1960's tech. Set the temp I want. Set the fan on auto. Flip the switch to heat or cool. If heat or cool or fan is not needed, turn it off. Simple. Less complications and crap to break.
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I've got a Carrier heat pump system - it came with a touch-screen thermostat that lets the user independently set "cool to" and "heat to" temperatures, but the settings have to be a minimum of 2 degrees apart. Works pretty well, no issues so far.
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This house had one of those "smart" thermostats when we bought it 9 years ago. I swapped it out for 1960's tech. Set the temp I want. Set the fan on auto. Flip the switch to heat or cool. If heat or cool or fan is not needed, turn it off. Simple. Less complications and crap to break.
Not quite so simple but this house, built in 1961, had one of the old, round thermostats when I bought it. Three years later, the A/C had to be replaced so I took the opportunity to put a 5 + 2 programmable thermostat in to replace it. It has saved me a fair amount of money on heating but not cooling due to the way I programmed it.
All 7 days are now the same program and for heat, 7-10 a.m. is set for 68 degrees while from 10-4 p.m., I let the heat drop to 65. From 4-10 p.m., it goes back to 68 but from 10 p.m.-7 a.m., I let it drop to 62.
With the A/C, there isn't that much of a difference in temperatures. Using those same time slots, the low (on) temp is 68 and the high (off) is 72 (I HATE heat and humidity !!)
And, no matter the time of the year, at night, there is a 52" ceiling fan in the bedroom that runs every night with it on HI in the summer and LO in the winter, just to keep the air moving.
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Now that I have my pellet stove my heat pump just sits in the back yard during winter, waiting for the temperature in the house to drop to 60 degrees so that it will have a purpose.
Summer? That's when it gets a work out.