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[hondaracer2oo4]

Looking to add a simple low water cut off switch to my hardy. I would put it up in the little tank on the back that I use to check the level. I would want it to simply allow the hot wire to run through it and break the connection if the water dropped below a certain point for some reason. Any ideas?

[slimjim]

Safegaurd low water cutoff, works well on pressurized system.

[hondaracer2oo4]

Thanks slim, looks to be the least expensive option out there. Should work for the application.

[hondaracer2oo4]

Picked one up off eBay today for 62 shipped. Thanks again.

[mlappin]

I took a slightly different route, I used a low pressure diaphragm switch (like for a well or air compressor). Placed it in a tee in the first connection in the basement, if you lose pressure the switch opens which opens a constant duty relay and it kills power to everything until the water level is replenished. Have a momentary on pushbutton switch to act as a bypass or primer until the pump builds pressure.

Only needed it once so far when an older style of compression fitting failed the year after I got my boiler hooked up and running.