I would buy it again.

I use this for my in-floor heating system. Works great! Easy set up and within 1-2 degrees Fahrenheit of my other thermostats. The face plate could be a little smaller in my opinion.

I would recommend this unit

This product replaced an old mercury round honeywell unit and was controlling my radiant floor zone. The new T-6 has eliminated the temp swings that I was experiencing. It has a floor sensor which I did install and it just works.

Wonderful control for hydronic heat

One of the best out there. First off comes with a floor sensor, which is a great choice for certain conditions, such as a concrete slab or high mass gypcrete floor. Another useful purpose for the floor sensor could be when you are using supplemental heat such as a wood stove placed in proximity to the thermostat. The wood stove will stop a call for heat to the rest of the house that is not being heated by the stove, if you only have the thermostat sensing air temperature in that situation . You could place the sensor in another area that would still tell the boiler to keep everything else warm without zoning. This unit can work off air or floor heat temperature. One of my favorite features is the number of heat cycles allowed per hour can be set between 1 and 12. Even better you can set how long the cycles last up to 15 minutes. Your boiler will fire for that set time no matter what. Say goodbye to short cycle on your combi boiler or any boiler for that matter. Now this may be uncomfortable for some super insulted spaces so your milage may vary. There is only one con to the T6. There is the typical audible click of a cheep thermostat when calling or ending the heat cycle. This is normal, but this noise can be eliminated by having a different set up. They should add an expansion module to the T series that places the relays somewhere else of your choosing and turn the display panel into nothing but the timer, temperature sensor and control interface. The click is loud and and annoying. All and all, my favorite non WiFi thermostat. And, no app garbage to put up with that the latest update gives you the pleasure of no jeat. Besides,the Internet has no reason to know my thermostat choices. Read the manual and enjoy. Simple to install. Will accept 24v AC for constant display power so the batterys become a backup. 3 or 4 wires are best. My boiler has a dedicated 24 v out so I wired R,W to T1 and used 2 other conductors for 24v. Floor sensor has its own terminals.

Very impressed

Very easy to install and set up. Just read the instructions and it will be a snap

Great for my concrete radiant floor

Useed on an addition on a slab with hydronic radiant heat in the floor. I was concerned with the slab over-shooting the set room temp. Since this thermostat monitors both the slab and air temp, i am able to control the zone using both sensors.

Product works, customer service doesn't

The thermostat itself works fine, and does what thermostats are supposed to do. Their customer service (after waiting on hold for almost an hour), is utterly useless.

I would like to buy again

Great product, works well, price is good , looks great,

Easy install, easy programming, flawless functionality

This is a great thermostat for our in-floor hydronic heating system. We have 3 zones so I bought 3 of these. Installation was simple. I used the 7-day programming mode which was very intuitive. After several weeks, they are all working flawlessly. Changing the programming is easy. The way they are working has to result in some significant savings in our seasonal heating costs here in MN. In short, I can't think of anything I don't like about these thermostats.

The Thermostat works exceptionaly well

We use this Stat to control our I floor radiant heat. the floor has never been so consistent in its temp and the boiler never short cycles like it used to.

it works great

it works great

Great T-stat

Very accurate, and easy to install and program.

Works good with my floor

Works good with my floor

Programmable Thermostat Works Well

Product works well. Despite the description of being used to control floor slab temperatures I'm using it to control the air temperature in a crawl space with plumbing pipes heated by a forced air furnace.

Works good for this application

I bought it to sense the temperature of concrete floor in a milking parlor, instead of the air temperature in the barn ...it works great...thx