Fireplace controller project

Basics

• getting nodes http://thomas:xxxxx@isy.home.hentschel.net/rest/nodes/
• get thermostat node http://thomas:xxxxx@isy.home.hentschel.net/rest/nodes/14%2023%20AC%201
• setting temp to 70F via REST http://thomas:xxxxx@isy.home.hentschel.net/rest/nodes/14%2023%20AC%201/set/CLISPH/140

Fan control off:

<node flag='0'>
  <address>14 23 AC 4</address>
  <name>Thermostat - Fan Control</name>
...
  <property id='ST' value='0' formatted='Off' uom='%/on/off'/>
</node>

Fan control on

<node flag='0'>
  <address>14 23 AC 4</address>
  <name>Thermostat - Fan Control</name>
...
  <property id='ST' value='255' formatted='On' uom='%/on/off'/>
</node> 

Thermostat manuals

adjusting dead band for 2nd stage

• Installation Manual (Rev. 1)
• Manual (Rev. 1)
• Manual (Rev. 2)

Design

Thermostat controller schematics

Fireplace controller - called HPC-350-M - can be found here

• Use insteon 2450 to switch fireplace low-voltage control
• Control Insteon 2450 via Thermostat - Heat Control (insteon address: 14 23 AC 3) via ISY program
• Rewire house heater to use the 2nd stage heater control on the thermostat
• Sense fire place heater via 2450 input
• Engage house heater fan via ISY program

Design Rev 2.0

• create fireplace controller with raspberry pi zero + OLED display that fits into single gang box with decora faceplate
• Inspired from here:

• the Oled display which will fit into decora blank at this link

• Rudimentary bit-banging Python driver: Gist at Github
• Native driver package at Github
• the 3d-printable decora cover: at thingiverse
  • Dimensions:

  Device 6.66 x 3.30 cm

  Hole in trim plate 6.68 x 3.32 cm

  2 mm ( 0.20 cm) radius on the corners.

• Buttons are at amazon.

Design questions

How many buttons to control?

1. ESCAPE/BACK
2. UP
3. DOWN
4. SELECT/ENTER
5. recessed reset button

?