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OpenTherm: document ot_tboiler2, ot_ch2 and the CH2 telemetry - #1575

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arendst merged 1 commit into
tasmota:masterfrom
pebl-hank:opentherm-ch2
Oct 4, 2026
Merged

arendst merged 1 commit into
tasmota:masterfrom
pebl-hank:opentherm-ch2

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Documents the commands added in arendst/Tasmota#25098 (merged into development):

  • ot_tboiler2 – flow setpoint of the second central heating circuit (OpenTherm data-id 8)
  • ot_ch2 – enable/disable the second circuit at runtime, like ot_ch
  • telemetry BTMP2 (requested/acknowledged CH2 setpoint) and TB2 (CH2 flow temperature, data-id 31)

Changes are limited to docs/OpenTherm.md: the two commands in the command list, a pointer to ot_tboiler2 at the CH2 flag, and one short section per command in the style of the existing ot_tboiler / ot_ch sections.

Transparency note: written with the help of an AI assistant (Claude); the described behaviour was tested on my own boiler (see arendst/Tasmota#25098).

@arendst
arendst merged commit ce6b294 into tasmota:master Oct 4, 2026
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