B-vent draft hood question

My house has a gas fireplace insert that sealed (glass front that doesn't open). On top it has a draft hood, then it goes into the b-vent.

Problem, this open draft hood sucks a bunch of warm air out of the room.

Can I get rid of the draft hood and make this a tight connection right to the top of the gas log insert?

If not how can I get it to stop sucking all the warm air out of the room. I know a direct vent wouldnt have this problem.

Thanks,
Rick

"A gas appliance is nothing more than a controlled explosion!!!"

Well said. I see no problem tying into the the valve circuit with an automatic damper. Looks straight forward.

Of course I had to ask about thermal dampers ($20-50) versus automatic ($160).

Rick

Dusty

I found thermal and automatic dampers. Looks like the automatic dampers are still common. The thermal ones are still around to.

The thermal it looks like it would be no problem. The auto will need to be tied into the gas valve.

Any suggestions or suprises I need to look out for?

Thanks
Rick

Dusty