Learn about the GrabCAD Platform
Get to know GrabCAD as an open software platform for Additive Manufacturing
Visit our new homepage
Home
Control
Shop
Streamline Pro
Partner Program
Print
Community
Log in
Library
Challenges
Groups
Questions
Tutorials
Engineers
Blog
Log in
John McManigle
Follow
0
followers
United States
Tutorials
About
Models
1
Tutorials
1
More
Followers
0
Following
0
Likes
0
Following
0
Followers
0
Likes
0
Tutorials
Sort by:
Recent
Recent
Most liked
Most viewed
Most commented
"Failsafe" ESPHome Fireplace Controller
John McManigle
in
Assemblies
0
0
Intermediate
When asked what smart switch to use to control their gas fireplace, you see a lot of replies "do you want to be one software bug away from your fireplace turning on?" Granted, modern gas fireplaces have safeties in place to prevent un-lit open valves, runaway heating, etc., but some people would still rather have a hardware switch standing between them and fire. This project aims to be the best of both worlds: by running 5v power to the low-voltage switch box holding my fireplace wall switch (in my case, this involved pulling 5-conductor thermostat wire using the existing 2-conductor wire), you can power an ESP board running ESPHome. By running the actual thermostat switch signal through both a DPST and a (ESPHome-controlled) 3v relay, we can be sure that the fireplace is only "active" if the manual switch is turned on.
Rhino
smart home
rhino
esphome
home assistant
fireplace