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Picture a hot water tank with multiple tappings into the cylinder. (The potable water is in an inner cylinder here, tank in tank system.) All open vent system.
On a couple of the tappings there is a wood burning stove, flow and return. There is also a vent pipe back to the F&E tank in the loft. This side is gravity flow on stove.
The oil boiler uses a couple of other tappings on the cylinder, again flow and return, this side of things is fully pumped. There is another vent pipe back into the loft, back to the same F&E tank from the oil side.
Question, as the water that goes into the wood stove is the same as the water that circulates the oil boiler, is there any need to have TWO vent pipes back to the loft?
(There are other pipes in the system obviously but I'm only relating to the vent pipes here.)
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Picture a hot water tank with multiple tappings into the cylinder. (The potable water is in an inner cylinder here, tank in tank system.) All open vent system.
On a couple of the tappings there is a wood burning stove, flow and return. There is also a vent pipe back to the F&E tank in the loft. This side is gravity flow on stove.
The oil boiler uses a couple of other tappings on the cylinder, again flow and return, this side of things is fully pumped. There is another vent pipe back into the loft, back to the same F&E tank from the oil side.
Question, as the water that goes into the wood stove is the same as the water that circulates the oil boiler, is there any need to have TWO vent pipes back to the loft?
(There are other pipes in the system obviously but I'm only relating to the vent pipes here.)
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