“I have honewellhome app but it doesn’t work.”

87% of 38 verified owners recommend the Honeywell Home T6 Pro, based on real owner verdicts aggregated from Reddit, enthusiast forums, and YouTube.
Affiliate blogs here say 100% recommend, while the owner-based score is 87%. They earn a commission on every sale — so we show them for transparency but never let them move the score.
The headline score reflects owners (Reddit, enthusiast forums), independent lab tests, blogs with no affiliate links, and YouTube owner-comments when they line up with owners. YouTube and Affiliate blogs are shown for perspective but kept out here — hover the i for why.
Synthesized from what Honeywell Home T6 Pro owners say — not a spec sheet.
Retailers' own star averages, for comparison — separate from our vetted owner-verdict score above.
“I have honewellhome app but it doesn’t work.”
“When I logged into hass the next time it said "We found a new homekit device: Thermostat". Please note, I don't do homekit despite having all apple devices. Two clicks and a code read off the screen and I had a thermostat in hass.”
“I use the Honeywell T6 Pro in my home, but I think it is obsolete at this point. The important points are simplicity and reliability.”
“These thermostats are absolute junk”
“I've had great experience with my Honeywell T6 Pro (Z-Wave). Pros: - It works 100% without internet / wifi - You can still expose it to the internet (and Google Home) via Home Assistant if you want - It works perfectly fine as a 'dumb' thermostat - Honeywell is a reputable thermostat brand compared to some sketchy brands you find in the 'Smart Thermostat'”
“I'm using two Honeywell T6Pro ZWave and have enjoyed them over the Nest Gen3. The T6 Pro works with single stage, two stage, heat pump, you name it... 4 wire, 5 wire, 6 wire... it's the swiss army knife of local only stats.”
“This system sucks”
“Thank you. I was able to finally program my thermostat”
“The schedule on this thermostat sucks super confusing”
“I have 9 Honeywell T6 Pro Z-wave thermostats, and 2 Nest's for the main floor. I wish I just went with the all Z-wave tbh, I can't even get my second Nest to setup with the app yet”
“I don't want a smart thermostat to create a heating and cooling schedule. I want a standard thermostat thank you.”
“I have door locks (u-bolt), thermostat (honeywell T6 pro z-wave), light switches (zooz), motion sensors (zooz), contact sensors (zooz), smart plugs (zooz) and it's all been working pretty great for me.”
“So at night I wake up in a sweat.”
“But not my Honeywell T6 Pro ZWave thermostats. I consider myself very lucky the installers chose that for their package.”
“it keeps changing the temperature by itself”
“So glad that I found this video and can now set a schedule as we did in our previous home.”
“I hate the programming inputting.”
“This is too much programming unless you hire a professional.”
“Google home and assistant will work with the t6pro smart . That's what I use.”
“It doesn't have inputs for 15 different temp sensors, but it has a pretty smart algorithm where if you tell it what kind of heat you have and how many cycles per hour you want it to do, it'll maintain your temp pretty well by understanding how long it takes for the heat to react and turning on heat before the temp drops.”
“My Honeywell does not say PROG when I hit the menu button. What can be the problem. I am unable to program it”
“Honeywell is pretty much Rosetta stone across the industry. Maybe get a bad one from the batch every 3 years or so, but they are honestly the only residential control I'll install.”
“the MOST impossible torture of any registration I have ever done”
“my thermostat (Honeywell T6 Pro Z-Wave) looks like a normal thermostat. All of my stuff looks like normal stuff, functions like normal stuff, and will always work even if my automation fails.”
Practical notes owners raise — setup, quirks, and issues to watch for. They don't say whether the person likes the product, so they're not counted in the score, but they inform the pros, cons, and who it's for.
“After any configurations are done via the touch screen, the temperature reported spikes 3-4 degrees and then will slowly ramp back down to the real temperature reading.”
“When I turned on advanced reporting on my T6 the humidity dithered between 30% and 31% every minute or so.”
“I typically install Bosch systems with Honeywell T6 Pros or the T10. The T10 has the advantage as it can use internet weather for the dual fuel compressor lockouts. The T6 Pro needs a hard wired outdoor temperature sensor. Both have app connectivity, the T10’s interface is better than the T6 Pro.”