..a helpful hint on Flow Switches..
Suttner ST series Flow switches have a 3 amp rated reed-switch..
others are only 1 amp rated..
you want your 12 volt system to be reliable !??
..the true path to strenght, IS the "elimination" of weakness.
also.. If your system has a "starter-solenoid" switching power to your ignitor..
be aware that type of relay draws a LOT more current than the
smaller auto-relays, just to pull-in it's contacts..
In some cases they draw more than the contact rating of the reed switch.
Don't buy cheap.:nono:
..12 volts CAN be reliable. .. :yes4: