Thermostat settings
lucillle
3 years ago
last modified: 3 years ago
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thermostat set back
Comments (9)Adaptive recovery is supposed to raise the temp slowly to avoid triggering the auxiliary ... but I found with both a Lennox and a Carrier system that the aux still typically triggered for a few minutes at end of the recovery period to make up the last couple degrees. I found that to be completely unnecessary, didn't bother me a bit if the target temp wasn't reached exactly at the recovery time ... so I had an outdoor temp sensor added (to a Lennox at one house, then to a Carrier later at the current house), which activates an aux lock-out function on the thermostat (your thermostat & system may vary on supporting this feature). The aux does not run (except during defrost) unless the outdoor temp is below the (user-)programmable lock-out temp, which I have set at 25°F. Setback with a heat pump, plus the aux lock-out DOES reduce power usage and cost in my experience. Now that I'm not working half the day and into the night, I tend to not do a setback at all, and my electric bill (and KWH usage) is higher. How much difference the aux lock-out makes, I can't say, since I ran the Lennox without it for just the last month of the winter season at that time, and have always had the lock-out feature with the Carrier....See MoreThermostat setting in hot weather (no AC involved)
Comments (7)OK, we are getting a more clear picture. Let me give you a concrete example. If the temperature inside is 75, it does not matter if the thermostat is set to 55 or 72, the heat will not go on. You can turn the t-stat to 55 or all the way down in the summer and it should not make much or any difference. That stated, I see that where my father is in upstate NY temps in the 40s are expected tonight. In a very poorly insulated structure, your heat might go on set to 55 and it is summer :-) I'll be there next week and I am looking forward to spending some time in a more hospitable climate. Tigerdunes is trying to figure out what kind of system you have. Is your water heater separate or does the same boiler provide both heat and hot water for the taps (domestic hot water)? If you have an all in one system, you should expect your boiler to kick on to provide hot water. There may be ways to improve the efficiency of the system so you will want to educate yourself and this is a good place to find help. Enjoy your new home. You will need good, knowledgable regular service with an oil burner. Ask around and find out who people like and make sure you get it cleaned and checked annually if you stay with oil heat. Traditionally, companies that sell oil and service equipment schedule regular service calls in the summer because they are not as busy delivering oil then....See MoreTrane 14XLi heat pump thermostat settings
Comments (7)I know the original unit was builder grade (Trane XB 13)because it is the lowest grade Trane offers based on products listed on the web site. Specs are available there. The 14XLi gives me better cooling and much better heating. The 15XLi would have cost me $800 more but there was no gain in heating and only marginal better cooling. The heating specs are more important in my climate than the cooling. I contacted the heating installer today and asked him some questions abou8t the auxillary heat. He said the gas powered aux unit (XR90) is designed to come on at 40 degrees. He said efficiency was the reason and price point on gas vs. electric at the colder temps. Seemed to make sense. Also told me I could find new furnace filters (non-Honeywell) at Fred Meyer for about $19 instead of the $45 Honeywell 4 inch square jobbers. May not be quite a good but they would be essentially better than half price. I'll look tomorrow. Thank you folks....See MoreWhat Thermostat Settings For A Listed But Unlived-In House?
Comments (13)"I think most leave them either turned right off at this time of year, or else set at 50 F." I am not sure my AC can even make 50F (it hit almost 100 F yesterday). Darn it, brickeyee. I've been so busy that I haven't had a chance to check for responses, and you beat me to it. ;-) The house, which isn't on the market yet, but will be soon, already has a programmable t'stat. I was just trying to get a feel of what most people are doing. They point about not setting it too high, lest potential buyers think there may be a HVAC issue is well taken....See Morelucillle
3 years ago
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