Ayuh,.... Is it the type that cuts the power, or the fuel,..??
Donno if the big box stores carry 'em, or not,...
If it's the electrical cut-off, 'bout any commercial Hvac supplier, or Electrical supplier oughta have 'em, in stock,...
If the fuel shut-off, the Hvac supply house would be the place to look...
Donno if the big box stores carry 'em, or not,...
If it's the electrical cut-off, 'bout any commercial Hvac supplier, or Electrical supplier oughta have 'em, in stock,...
If the fuel shut-off, the Hvac supply house would be the place to look...