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Start to Finish

Start to Finish SFTHCTSH742 (OEM Venstar T6800)

Thermostats · Climate

Partly worksLocal

1 report: 1 says it partly works.

Reported with 1 integration: Venstar.

What people report

IntegrationIn Home AssistantIn Apple HomeWhat they saidSource
VenstarPartly works LocalWorks except fan control, which sets the wrong flag
Saved copy
The problem I have a Start to Finish SFTHCTSH742, which is an OEM version of the Venstar T6800 with a Wifi adapter in the SD Card slot. Works great with the Venstar Integration, other than one issue. The fan control does not work. It sends a command to the thermostat, but not the correct flag in the thermostat (verified by visiting the API endpoint on the thermostat). First off, API info from my thermostat `{ "api_ver": 5, "type": "commercial" }` Fan turn on from Home Assistant `{ "name": "Thermostat", "mode": 1, "state": 0, "fan": 1, "fanstate": 0, "tempunits": 0, "schedule": 0, …

Excerpt saved from GitHub on 2026-10-23.

Issue #160955 · 2026-01

Each row is one report from a GitHub thread, an integration’s docs, or r/homeassistant. Check the date and the linked source before you buy.

In ReReHome

Once Home Assistant’s HomeKit Bridge shares it, this device reaches Apple Home as a HomeKit accessory behind your Home Assistant bridge, so ReReHome shows and controls it like any other.

Identifiers

BrandStart to Finish
ModelSFTHCTSH742
CategoryThermostats