We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Venstar T8850 rectangular thermostat white touchscreen display

Venstar

Venstar T8850 thermostat 4H/2C Wi-Fi commercial 365-day scheduling

SKU CH-E1A8-XNCZY

A commercial thermostat managing up to four heating and two cooling stages with built-in Wi-Fi and 365-day scheduling

  • Product typeWiFi Thermostats
  • 365-day holiday scheduling matches any calendar
  • Built-in Wi-Fi enables free mobile app control
  • Four heat and two cool stages suit gas, electric, heat-pump or dual-fuel systems
  • Accepts remote and outdoor sensors for precise zone readings
  • Drop-down weather screen shows current conditions and forecast

Venstar T8850 4H/2C commercial thermostat

The Venstar T8850 is a commercial-grade Wi-Fi thermostat built to control up to four heating and two cooling stages. It supports gas, electric and heat-pump systems and is dual-fuel capable for flexible installation.

Suits facilities needing multi-stage control

It fits buildings that require adjustable timers, dead-bands and set-point limiting for precise comfort management. Buyers who need more than four heat or two cool stages should look at a different model.

365-day holiday and vacation scheduling

The thermostat provides a full year of programmable scheduling to match seasonal occupancy patterns. A drop-down weather screen shows current conditions and the forecast, and the unit accepts remote or outdoor sensors for extended monitoring.

How it compares

Measured against everything we stock in Thermostats & Thermostat Accessories, at today’s prices. Recalculated every night.

Price $223.99
Pricier than about 86% of the 286 comparable items (median $78.49).

Specifications

Product
Product typeWiFi Thermostats

Questions about this item

Does the T8850 package include any remote or outdoor sensors, or must those be purchased separately?

The thermostat accepts a remote sensor or an outdoor sensor, but neither is listed as included in the box, so plan to buy the sensors you need separately.

With 4 heat and 2 cool stages available, how do I know which stage configuration matches my HVAC system?

The unit supports up to 4 heat and 2 cool stages for gas, electric, heat pump or dual-fuel systems; match the stage count to your equipment's specifications to choose the right wiring setup.

How does the 365-day holiday scheduling work once the thermostat is installed and connected to Wi-Fi?

You create a full year of holiday or vacation programs on the touchscreen or through the free mobile app, and the T8850 will automatically apply those schedules on the designated dates.

More in Thermostats & Thermostat Accessories

Similar items