♨️ ONDOHL Electric Boiler Guide
user guide
Powered by Google Nest / Model: ONDOHL Canvas One
Welcome! Your heating system powered by the ONDOHL LLC is fully integrated with a Google Nest Smart Thermostat. Here is a quick guide on how to operate the system and important safety instructions.
♨️ About ONDOHL Heating System
About Your Heating System
The ONDOHL Electric Boiler installed in your home is a custom-engineered, American-market version of a proven heating system.
Expert Manufacturing
Manufactured in partnership with Suntech Industry, a trusted Korean manufacturer with over 15 years of experience specializing in electric boilers, heating components, and OEM production for leading brands like Kiturami Boiler.
Tailored for Your Home
Redesigned specifically to meet US electrical standards while seamlessly integrating with Google Nest Smart Thermostat for maximum efficiency and safety.
Safety First
Built with built-in overheat protection and automatic water level sensors to ensure quiet, safe, and reliable heating throughout the season.
♨️ Google Nest Thermostat
Basic Operation
How to Adjust Temperature
On the Thermostat: Swipe up or down on the right side touch bar to adjust the target temperature. Tap the side bar to select/confirm.
On your Phone: Adjust the temperature, change modes, or set schedules anytime using the Google Home app.
Recommended Temperatures
Comfort: 68°F – 72°F
Sleeping / Away: 62°F – 65°F
Smart Energy Saving
The system automatically uses phone location/sensors to detect when you leave and switches to Eco Temperature to save energy. You don’t need to turn the boiler off manually when leaving
⚠️️ Product and pre-settings
the key internal components
1. Water Expansion & Supply Tank (Top Left)
What it is: The translucent white plastic container on the top left.
Function: Holds the heating water supply and absorbs thermal expansion as the water heats up.
User Line (
[WATER LEVEL]): Indicates the maximum water refill level. Overfilling can cause overflow when the water expands during heating.
2. Main Heating Tank & Element (Bottom Right - White Tank)
What it is: The vertical white cylindrical container housing the internal electric heating element.
Function: Water passes through this tank where the electric immersion heater quickly warms it before it is pumped into your radiant floor or radiator loop.
Note (
DO NOT TOUCH): During the operation it gets hot.
3. Water Circulation Pump (Bottom Left)
What it is: The black pump unit located at the lower left.
Function: Actively circulates hot water out through the heating loop and pulls cooler return water back through the boiler.
4. Nest Control Relay / Switcher (Bottom Center-Left)
What it is: The small electronics module at the bottom.
Function: Bridges the 24V signals from the Google Nest Thermostat to trigger the boiler’s main power circuit (240V/120V) on and off based on room temperature demands.
5. Control Panel & Status Indicators (Top Right)
Orange Light (
[Orange Light]): Master power indicator showing the main electrical circuit is powered.Green Light (
[GREEN LIGHT]): Active status indicator showing the heating element is energized and heating safely.Red Light (
[RED LIGHT]): Warning/Fault indicator triggered if the water level drops too low or if an overheat condition occurs.Dial (
[DO NOT TOUCH] Water Temperature Adjuster): Internal aquastat dial setting the maximum high-limit temperature for the water exiting the tank. Since daily control is handled by the Nest Thermostat, this remains pre-set.
⚠️️ Tenant Safety & Usage Precautions
Safety & Precautions
Do NOT Run Without Water (Dry Firing Warning)
- The boiler must always maintain proper water pressure in the closed loop.
- Operating the system without water will burn out the heating element.
- If you hear unusual bubbling/gurgling noises or notice water pooling near the unit, turn off the thermostat and contact the landlord immediately.
High Temperature Warning (Scald Hazard)
- The main boiler unit and lower piping become very hot during operation.
- Do not touch the pipes beneath the unit, and keep the area around the boiler clear of personal items (10 inches away).
Do NOT Tamper with the Main Boiler Unit
- All temperature controls and heating schedules are managed through the Nest Thermostat / Google Home app.
- Please do not press buttons or turn valves on the ONDOHL boiler unit directly.
🚨 Troubleshooting & Emergency Contact
Maintenance Contact
Landlord / Designer
Name: Michael O’dlee
Phone: 971-269-7800
Email / Text: michael@ondohl.com