Boilers - Home Heating Steam and Hot Water Systems - check valve question

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Den788
10-25-06, 06:44 PM
I need to buy a check valve for my furnace. I was looking at two kinds. One with a flap inside that moves freely in one direction and another check valve that looks like it has a diaphram inside to let the water flow in one direction. I was wondering what the difference was and what one would be better.

Grady
10-25-06, 08:08 PM
For what purpose do you want a check valve?
Den788
10-27-06, 05:47 AM
I am hooking up two furnaces together oil and a wood furnace

Grady
10-27-06, 06:42 PM
I suggest you consult the installation instructions, manufacturer or supplier of the wood fired boiler.
BTW, I hope you are not venting both appliances into the same chimney flue. To do so is illegal & very dangerous.