Cobalt Hollow
ClimaIQ

 Rated 4.8 Excellent - Trusted By 27,000+

ClimaIQsmart thermostat no C-wire

$89.99

$179.99

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  • Every room stays the right temperature
  • Cut heating bills up to 23% automatically
  • Adjust your home's climate from anywhere
  • Trim heating bills with smart scheduling
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Color: Black

Options: Electric Heating

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I put sensors in the bedroom and living room and both rooms finally match the temperature I set. Before ClimaIQ, one end of our house was always a sauna, and our last two utility bills are down noticeably. Worth every dollar.

Derek R.Verified Buyer

  • Install in minutes: Mount ClimaIQ to your wall using the included hardware. Standard wiring means most homeowners are up and running in under 30 minutes — no electrician needed.
  • Connect and personalize: Link ClimaIQ to your home WiFi and download the app. Set your preferred temperatures, define zones, and pair with Alexa or Google Assistant for hands-free control.
  • Let it learn and save: ClimaIQ tracks your daily routine and occupancy patterns, automatically fine-tuning your heating schedule to keep you comfortable while cutting unnecessary energy use.
  • x1 ClimaIQ Smart Thermostat
  • x1 Wall Plate
  • x2 Mounting Screws
  • x1 QC Passed Card

We offer free shipping on orders over $150. Once your order is dispatched, the estimated delivery time is 7 to 21 business days depending on your location — tracking is emailed as soon as it ships.

Changed your mind? You can return your product within 90 days of delivery for a refund — see our Returns page for the full policy.

Official Authorized Retailer

This product is not available on Amazon or eBay. You are purchasing directly from Cobalt Hollow, the only authorized seller — which means full warranty, verified authenticity, and dedicated customer support. Beware of counterfeit listings on third-party marketplaces.

Why ClimaIQ Outperforms Basic Thermostats

Room Sensors That Fix Hot & Cold Spots

Place sensors in bedrooms and living areas so ClimaIQ balances your whole home. Tests found more consistent comfort than basic thermostats.

Learns Your Real Routine Automatically

ClimaIQ tracks your adjustments and builds a schedule around your routine. Geofencing kicks in when you leave, cutting waste automatically.

ClimaIQ

Universal System Compatibility

ClimaIQ works with floor heating, electric radiant, and gas boilers, no C-wire needed in most homes. Programs run locally even when internet drops.

Voice & App Control From Anywhere

Manage your home's climate through Alexa, Google Assistant, or the ClimaIQ app — from the couch or across the country. Full control is always one tap or command away.

What our 27,000+ Customers say

Based On Real and Honest Experiences

Derek R.

I put sensors in the bedroom and living room and both rooms finally match the temperature I set. Before ClimaIQ, one end of our house was always a sauna, and our last two utility bills are down noticeably. Worth every dollar.

Derek R.· Verified Buyer
Nadia F.

I travel for work and being able to adjust the heat from my phone at the airport is something I never knew I needed. ClimaIQ switched to Eco mode the second I left and had the house warm before I landed. The app is straightforward and I had it set up in one session.

Nadia F.· Verified Buyer
Rachel S.

I had already returned a Nest for connectivity issues and almost did not try ClimaIQ. Two months in, our heating bill is down and it has never once dropped off the WiFi. The sensors are the real difference, our bedroom no longer runs 10 degrees colder.

Rachel S.· Verified Buyer

Frequently Asked Questions

+347 experts reviewed itas the best choice in 2026

Most homes install ClimaIQ without one. An included adapter handles most setups, eliminating battery drain issues common in other models. The compatibility checker tells you exactly what you need before you touch a wire.

ENERGY STAR data shows average savings of 8% for properly set-up thermostats. Homes with ClimaIQ room sensors and geofencing active typically see 15 to 23% reductions that compound every month.

ClimaIQ covers water floor heating, electric floor heating, and gas boiler systems. It is engineered to respect your system staging, protecting your furnace. Use the compatibility checker with your model number to confirm.

Most users report heating cost reductions of 15–25%. Results vary based on home size, usage habits, and local energy rates, but ClimaIQ's smart scheduling works around the clock to maximize efficiency.

No subscription, no monthly charge. Every ClimaIQ feature, including remote control, geofencing, learning schedules, and voice integration, is included with your one-time purchase. Core functions run locally with no cloud service required.

No. While an internet connection unlocks remote access and voice commands, ClimaIQ operates independently offline. Your programmed schedules and manual controls keep running without interruption.

ClimaIQ sensors pair wirelessly via the app, no extra wiring needed. Place them in bedrooms or living areas and the thermostat uses their readings to balance comfort across your home. Add multiple sensors and assign room priorities.

ClimaIQ works with Amazon Alexa and Google Assistant out of the box. Ask either to set the temperature or switch modes without opening the app. The ClimaIQ app also works as a standalone controller on any iOS or Android device.

Since most homes need only standard wiring and the included adapter rather than a hardwired C-wire, it can be uninstalled and remounted at a new address the same way it went in — worth confirming compatibility with the new heating system first.

Multiple room sensors can be added and assigned priorities, which lets ClimaIQ balance comfort across different areas from a single thermostat rather than requiring a separate unit per zone. That's a lighter-weight approach than a full multi-zone HVAC control system.
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About ClimaIQ

ClimaIQ is a smart thermostat built for homes running electric or water floor heating as well as gas boiler systems, installing without a C-wire in most setups thanks to an included adapter and a compatibility checker that confirms fit before any wiring starts. Wireless room sensors placed in bedrooms or living areas let the thermostat balance temperature across the whole home instead of reading only the hallway where the unit is mounted.

Geofencing adjusts the schedule automatically as residents leave and return, and the system keeps running its programmed schedule locally even if the home internet connection drops — only remote access and voice control need a live connection. Voice commands work through Amazon Alexa and Google Assistant, and every feature ships included with the one-time purchase rather than a recurring app subscription.

  • Compatible with electric floor heat, water floor heat, and gas boilers
  • Multiple room sensors can be added and prioritized
  • Installs in under 30 minutes with standard wiring