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GLAS Compatibility Checker

Let’s figure out if GLAS works with your heating and cooling system.
Continue
Get started.

Turn off your old thermostat and for safety, make sure to turn off the circuit breaker to your thermostat before removing any wires. Then remove the cover — it may need to be unscrewed.

Continue
Check your wires.

Select the wires that are currently connected
to your thermostat on the wall.

R
Rc
Rh
C
W/W1
W2
Y/Y1
Y2
G/G1
O/B
AUX
More Wires
Check Your Wires

Is there a Jumper installed?

No
Yes

Is there a Jumper installed?

No
Yes

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