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Duct losses

W here is the hottest place in your home? The attic. Where is the coldest place in your home? The the attic. Where is the ductwork located in most homes? In the attic. Where should the focus of basic energy savings start?  Logic dictates it's in the attic. 
Here's a good one: where is most of your heating or cooling dollars being lost?  Right out of your duct system, especially if it's located in the attic.  Here's another good one: where is the largest temperature differential between your conditioned air located?  The attic.  Here's one even better you may not have thought about:  Where is the least amount of insulation used to minimize your heating and cooler dollars?
Homes built within the last twenty years have 3.5" to 5.5" of insulation (R11 or R19), in the walls, and 10" to 13" (R30 or R38), inches in the attic.  How much is around your duct system?   One inch.    
We have found flex duct systems increasing the temperature of delivered cooled air by as much as eight degrees in just 37 feet! This may not sound like a big number but consider this: the best an A/C unit can deliver is an 18F to 20F degree drop in temperature from the return (where the filter is), to the supply.  Now think about losing 8 degrees along the way, that's almost half.  Time to start focusing on this problem.   
Wrapping the ducts with our patented TCM Duct Wrap can cut this loss by as much as 50%.  This a low cost, high benefit,  do it yourself project or we can install it for you for $1 per linear foot.  The mulitple layers insure it won't be affected by dust.
 

Wrapping your ducting with our TCM duct wrap cuts losses, delivers more energy per minute and reduced heat gain and heat loss during the off cycle.  This means the typical blast of hot air or frigid air at the start of each cooling or heating cycle is reduced considerably.  Example: a correctly sized unit in a conventionally insulated home has approximately 5 run cycles per hour (that's conservative), 3600 per month or 28,000 for eight months (four  cooling months, four heating months). 

Do the math on the cubic foot volume of air your ducting has and you can imagine the savings.  You save money and increase comfort every time your a/c or furnace runs.  An excellent investment in any home.  Click here  to order TCM Duct Wrap for your home!

    

Attic ducting with 1" of fiberglass for protection.  This was adequate when energy cost were low.

All of your attic ducting needs to be protected with our TCM Duct Wrap. Simply wrap the 48" wide, multi-layered membrane over the duct and tuck it under.  On square ducts or return chases, glue TCM to the surface with silicone and a caulking gun.  Lasts forever, unaffected by dust, gravity or moisture.             

Duct Leaks

We have found homes losing as much as 40% of conditioned air inside the attic!  Typically, leakage of 15 to 25 percent is very common. 


 

As you can see this supply duct is falling off the duct box.  The infrared heat from the roof decomposed the protective polyvinyl grey sleeve after which point the duct literally fell apart.  The metalized surfaces on our Duct Wrap will not only prevent this from occurring, it will cut losses up to 50%. 

Return duct with large leaks pulling hot air in from the attic.  Most duct leaks occur at the plenum connection seen above where the hole must be cut by hand, typically in cramped attic areas.  The duct connections at the grill boxes are factory made rings and rarely leak any air at this point.  Focus on the plenum connections as follows:

This water based, fibrous, non hardening professional duct mastic in one gallon cans (2" brush included), is an investment that will last forever and pay for itself every second your a/c or furnace is running. 

Seal every connection of plenums, flex and return air chases.  Click here to order duct sealer.

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