For $38 and Programmable, I'm taking a chance. Way less expensive than others for those with Heat Pump +Electric auxiliary.
I got the Filtrer 3m50 wifi therm. Best $100 I spent in a long time. I use it in our beach house to monitor the temp via my iPhone or iPad and to turn heat or AC up/ down a few hours before we arrive. Works great.
What makes the 30 better than the 32 to justify the higher original price?
I could not find a comparison anywhere.
I think both of you are referring to the 3M-22? Both look similar. 3M-30 is touchscreen, which I think is the selling point. I didn't care touchscreen or not, but it was $1.98 cheaper than the non-touchscreen version, so I went for it.
The 3M Filtrete 7-Day Touch Screen Programmable Thermostat offers 4 program periods per day for your comfort and convenience. It has a beautiful, bright back-lit display that is easy to read. It has a near universal HVAC system compatibility including heat pumps (with auxiliary), 1 or 2 stage furnaces, and 1 or 2 stage compressors. A handy holiday program allows for a completely separate one-day program. The thermostat includes low-battery and filter-change indicators.
Large, touch-screen display with bright white back lighting provides easy viewing
7-day, 4-periods-per-day touch-screen programming
One touch Save Energy button to reduce energy consumption when you are away
Universal compatibility with common residential central heating and cooling systems
Filter-change indicator to keep system running optimally
Wide temperature range: 35 to 95 degrees
System lock prevents unwanted changes to pre-programmed temperature and system settings
Partial lock feature allows for temporary adjustment of the program
Low battery indicator alerts you to change batteries for uninterrupted operation
5 Year warranty
MFG Brand Name : Filtrete
MFG Model # : 3M-30
MFG Part # : 3M-30
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