cloves
Member
Hi everyone,
We recently swapped to an AO Smith Vertex to provide our domestic water supply and to provide our hot water for our radiant system (closed system). Currently the domestic supply line comes into our water filters 2 stage and then to an expansion tank before "Teeing" into the vertex cold supply line and the cold side of a mixing valve.
Now my question is, my radiant heat guy has an expansion tank in his diagram. Do I also need to have an expansion tank on the radiant side of the system? Wouldn't the expansion tank going into the cold supply of the water heater suffice?
I added the expansion tank on the right to the original drawing. My radiant guy says I need both but I can't wrap why.
We recently swapped to an AO Smith Vertex to provide our domestic water supply and to provide our hot water for our radiant system (closed system). Currently the domestic supply line comes into our water filters 2 stage and then to an expansion tank before "Teeing" into the vertex cold supply line and the cold side of a mixing valve.
Now my question is, my radiant heat guy has an expansion tank in his diagram. Do I also need to have an expansion tank on the radiant side of the system? Wouldn't the expansion tank going into the cold supply of the water heater suffice?
I added the expansion tank on the right to the original drawing. My radiant guy says I need both but I can't wrap why.
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