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iComfort S30 Ultra Smart Programmable Thermostat, 19V30

Brand:
Lennox
SKU:
19V30
Rating:
(9)
Q&A:
(1)
iComfort S30 Ultra Smart Programmable Thermostat, 19V30
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19V30 has been discontinued
Discontinued May 21, 2026
This product was discontinued by the manufacturer.
Direct Replacement:
iComfort S40 Ultra Smart Programmable Thermostat, 22V24
Brand:
Lennox
SKU:22V24
(8)
VIEW REPLACEMENT
VIEW REPLACEMENT

Product Highlights

Product Highlight: Programmability
Programmable

Description

The iComfort® S30 Ultra-Smart thermostat recognizes and connects to all iComfort® Communicating products to automatically configure and control the heating/cooling system (based on user-specified settings) for the highest level of comfort, performance and efficiency

Features:
  • Easy to read 7 in. high definition color tablet-like display interfaces with the Smart Hub Controller to operate the HVAC systems within the home
  • Contains a temperature sensor to monitor and control temperatures in the home through the display
  • Temperature Measurement Range - 0 to 150°F
  • Contains a humidity sensor to monitor and control humidity levels in the home through the display
  • Humidity Measurement Range - 10 to 90% relative humidity
  • Communication from Display to Smart Hub Controller:
  • Two Wire, 18AWG (RSBus) unshielded thermostat cable for low voltage Smart Hub power terminals (R, C, + and -)
  • Two Wire, 18 to 22AWG (RSBus) shielded thermostat cable recommended for Smart Hub communications terminals (I+, I-, A and B)

Specs

Control Panel:

Digital

Programmability:

Programmable

User Interface:

Touchscreen

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Product Reviews

4.22 out of 9 reviews
89% would recommend this product
4.22
out of 9 Reviews
89% would recommend this product
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5 star
67%
4 star
11%
3 star
11%
2 star
0%
1 star
11%
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Showing 1-9 of 9 reviews

icomfort update

Replaced an icomfort wifi. Ran additional wiring per specifications, and it started up fine. It has rebooted once and also lost communications once since the install but other than that has worked fine. It's still a really expensive option but Lennox has a proprietary bus so third party Tstats won't work with full features. One big issue is the warranty. The terms and conditions only allow full warranty if this is dealer installed, so be advised.
Slim
Pensacola FL
3 years ago
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Quick delivery & Straightforward installation

Lowest price and quick delivery. Straightforward (but costly) replacement for the iComfort WiFi thermostat that died. S30 auto-detected the furnace, AC, and humidifier. Took some time to get it fully registered through Lennox and link online accounts, but finally worked. SupplyHouse carrying this new part saved us $1k by installing ourselves.
AC
Colorado
4 years ago
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I would use Supply House again should the need arise!

Great customer service. Product arrived as promised; product needed to be exchanged and was done without any issues. Replacement arrived immediately! Price lower than other sites and of course lower than my hvac company!!!!
Red
Frisco TX
4 years ago
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I hope that do not have to due to cost

Seems to better than the white one that came with the system. Not too hard to hook up but , no where could I found shielded 4 pair cable unless you purchase a 500 foot roll. Also without a dealer code the thermostat can not connect to lennox server, which means you get no updates and always show a blinking lights. This boils down to only getting a 5 year warranty instead of a 10 year warranty from Lennox. That said the system works great and since I have a Lennox communicate system the thermostat found and configured the system. I just had to fine tune and set my time and temp up. Remember this only works with a Lennox communication system.
Gene
New Mexico
4 years ago
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I would buy this product again and I will use Supply House

The iComfort S30 thermostat is a nice upgrade from the Lennox Wifi thermostat; but I really don't need the Wifi capability of the S30. I am so grateful that Supply House sell Lennox products because Lennox will not sell to individuals. I will surely use Supply House again.
Phil
WA
4 years ago
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Buyer Beware no stars not an option

I have a iComfort 10F81 that died under warranty and Lennox won't replace it. I called local service repair. They came out and told me there was no way this unit would work as a replacement. They hooked up a much cheaper unit and said I'd like it better anyway, gee thanks I guess. Long story short SAVE YOUR MONEY.
Mike A.
WI
4 years ago
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The only replacement for 10F81

I was able install smart hub and display unit using existing wiring from old 10f81 with ease and the new S30 19V30 automatically detected my AC unit. Congratulation takes a bit focus and time for a person like me with almost no knowledge.
RM
New Jersey
4 years ago
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No problems. Quick delivery. Easy installation.

Product was in new condition (as promised), delivered quickly.
Anatoliy T.
Herndon, VA
4 years ago
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Expensive But Required to Optimize a Lennox Communicating AC

There are plenty of negative comments about this Lennox S30 Thermostat floating around the internet. It is a complex thermostat that requires professional installation and system calibration. With a ten year warranty, this new thermostat flawlessly controls temperature, humidity, and allergens and with SupplyHouse's best price, availability, and fast shipping, I could not be happier!
Matt K
Spring Branch, Texas
4 years ago
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Product Q&A

1 Question
1 Question
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Q: does the smart hub come with this thermostat? Thanks

Asked by Paul 4 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse

Hi Paul! The iComfort S30 includes a Smart Hub, HD Display, Mag-Mount and optional use wall plate.

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