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Rheem EcoNet Smart Thermostat

by Rheem Manufacturing Company

Last updated Mar 29, 2026 · 2 revisions

4.3-inch LCD touchscreen thermostat with 6-zone control, integrated water heater management, automatic equipment detection, and Alexa voice control.

Rheem EcoNet Smart Thermostat - by Rheem Manufacturing Company - Smart Thermostats software - logo 6.5 - Good
Custom · $450 Mobile App 5 Features 3 Integrations
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About This Product

The Rheem EcoNet Smart Thermostat is designed for Rheem EcoNet-enabled HVAC equipment, providing independent control of heating, cooling, and humidity across up to six zones. Features a 4.3-inch LCD touchscreen, automatic equipment configuration that detects and optimizes settings during installation, integrated water heater management, and five operating modes. Includes 7-day programmable scheduling, vacation mode, local weather with 6-day forecast, and voice control through Amazon Alexa. Wi-Fi enabled with automatic changeover between heating and cooling.

FSH Score Breakdown

Ease of Use
7.0
Features
7.5
Support
7.0
Value
6.5
Integrations
5.0
AI Capabilities
4.0

Customer Reviews

Features

5 features confirmed across 4categories· Showing confirmed capabilities only

Scheduling & Dispatch2features

Scheduling7 Day Programmable ScheduleWeather Data IntegrationLocal Weather Forecast

Hardware Features1feature

Smart Home IntegrationWorks with Amazon Alexa

Equipment & Asset Management1feature

HVAC Zoning ManagementEcoNet Zoning System support

AI & Automation1feature

Person DetectionMotion Sensor

Integrations 3 across 1 category

Industry-Specific 3
Amazon Alexa Native
EcoNet Native
Rheem Native

Pricing

Model
Custom
Starting at
$450
Notes
Rheem RETST800SYS EcoNet 800 Series Smart Thermostat. 4.3" LCD touchscreen, built-in Wi-Fi, Alexa/Google Assistant compatible. Model RETST800SYS may be EOL, replaced by UETST800SYS. Retail ~$450 via eBay/distributors.

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