SpacePak Winter Supply Shut-Off

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• I'm considering Spacepak for my old home but I'm concerned about the potential noice issues with a high velocity system. What has your experience been? What about custum modifications such as zoning off areas off a single fan coil unit?

  • Rich - I have SpacePak in my home and I don't mind the noise level. It is slightly noisier than our previous home with a traditional system but not that bad.

    Most of the installers that we've used over the years for this system all say the same thing. Proper installation is key to minimizing the noise effects. What that ultimately means is being sure that supply lines have a nice straight shot through the ceiling or wall. Installers must avoid sharp bends in the supply line near the outlet.

    I've never been involved with a system that used zoning.

• Hi Todd.

  We got our spacepak professionally installed this summer. 3 ton system and 15k later...I have a few questions if you might be able to help...

  We've had our air completely off for a while now and we've noticed when the nights are really cool like tonight and it's a bit windy we hear these 'heart beat' like sounds coming from the attic spacepak with big wind sounds that come through the holes in the ceiling. You can feel cool air coming through the holes. As for the sounds, you hear them first and then the wind comes. I'm hoping plugging each register will help (assume I can purchase online somewhere?) with the air coming through. Will taking the filter out and putting foil insulation take care of the sounds? We have attic vent to help keep the attic cool when the system is running. I wonder if we need to somehow close that?

  Have you heard of similar issues? Appreciate any insight!

  • Frank - We've installed quite a few of these systems in houses we build and I have one in my own home. Because the vents are small diameter, they magnify sound from air movement. All duct systems get air movement from wind conditions, but this is magnified due to the small size ports.

    Your system should have come with "plugs" so you can plug the holes in the winter. This is VERY important for a couple reasons, one it stops condensation from happening in the lines, and two it stops cold air from circulating through the system and back into the house.

    I also use some foil faced "wrap" to plug the cold air return in the winter, again to stop air movement and more specifically heat loss.

    I haven't "heard" that noise, but it seems reasonable with quite a bit of air movement.

• Hi, is there a better aesthetic than the "nipple" look for these plugs, or a flat removable insert to cover them? The only thing I do not like is the look of a nipple sticking out of the circular vent.

• Hi, I have a question regarding these type of systems. Is there any device for closing off vents in rooms that we do not want the air to blow into? We have these ports in our spare bedroom, and closets, and want to plug them off, but I have not been able to find such a device. If we did, would it hurt the system?

  • Sometimes installers will put dampers in the attic so you can isolate areas. Other than that I'm not entirely sure. I highly doubt it will damage anything.

  • Hi - just caught this post. I would like to close a couple of holes in basement rec room as it is not used very much. Will covering these basement holes force more air/greater velocity to 1st floor? this is our goal... thx!

    • It's possible, just not sure you'll see much difference.

• I want to direct the air in each room so that it flows into the room not down into the corners where the holes shoot it now. I cannot find any way to direct the air (such a plastic vent cover/directional you would see with a rectangular forced air vent). Ideas?

  • If it was designed correctly there's no need to do that. I've NEVER seen it done in all the homes we've built.

• Where do you obtain the plugs to close off the vents of the space pac? I purchased my home one year ago and would like to plug the vents when cool weather arrives.

  • I assume you can get them from a heating supply company that sells SpacePak

• Thank you soooo much for this post! We inherited a SpacePak system in the house we bought. It would not be our choice for AC, but we can't afford to replace it. For a couple of years now, we've had growing brown water spots around the outlets and condensation dripping down in the winter. This year has been particularly bad. Our AC repair guys had no idea what was causing it and, having no experience with SpacePaks before this, we had no clue either, until I stumbled on your post. I just ordered some winterizing plugs and will head out to buy some reflectix to plug the air return. Hopefully that will solve our problem with leaking outlets. Thanks again!

  • Alex - We've built quite a few homes with them and they can be a good solution for many of the open concept homes that don't have room for duct work. I've had mine in my house 15 yrs and it works quite well. Good luck.

• We recently moved into our older home with a spacepak system and didn’t know about these two tips until now. We have water damage (no longer wet though) around the vent in our room and we have active water dripping from only one of the vents in our son’s room. The dripping started the first time we turned on the air this spring. How do we stop the drips now(I know how to prevent it next summer, but that doesn’t help with the dripping now)? Do I let it drip until all the water is done dripping and then just fix the ceiling?