early barometrics?

Paul Pollets

A stainless model is available, and I've used several to prevent downdraft. The downdraft will shutdown the boiler if a spill switch is installed. We've had to install these caps on certain homes sitting on top of hills. Combustion = proper draft.....

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Timco

Is that what this is? Seems like it would maintain good draft, and it does still spin with the wind..

Tim

Wayco Wayne_2

I have

no idea. What's it attached to.? The Chimney?

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Paul Pollets

Wind cap

The wind cap is designed like a venturi, to reduce backpressure and downdraft on the appliance connected.

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Brad White_185

Paul has it

Exactly, a wind venturi. The weathervane tail directs it to the strongest wind. Think of it more as a draft inducer than a barometric function.

I have seen them used most predominantly as ventilators, not as combustion inducers.