Installing Heating Ducts In Attic

As most gba readers know ducts belong inside a home s thermal envelope not in an environment that s cold in the winter.

Installing heating ducts in attic.

Your hvac system will require shorter ducts. Install dampers at the registers to adjust airflow. Having it installed in the attic ensures that it is 100 percent protected from flooding caused by plumbing leaks and overflows. Not part of what is in the attic.

Installing ducts in a multistory home goes more slowly since wall stacks are included. Ducts are to be part of what is inside the house not part of. Most hvac companies have low man on the job installing ductwork. How to properly install ductwork in an attic tip 1.

The lower the cooler it is. In addition to making the unit hard to get to for service high attic heat can trigger the high pressure limit switch turning your condenser off. You shouldn t install ducts in a vented unconditioned attic. Installing ductwork is a 1 4 day job because of the wide range of scenarios.

Attic hvac systems also require shorter ducts. Ducts up high get tore up. Adding heat runs in a basement may change the airflow in the ductwork going to other rooms. Leaks and overflows on a given floor will seep through the floors to affect everything below it including your hvac system.

Choose properly sized ducts. I stumbled into ductwork repair change out by testing before and after ducts were sealed by hvac companies. This is an especially relevant tip for flex ducts more on that in a. But a contractor experienced in retrofitting can cleverly hide ductwork behind walls in the back of closets and up in the attic with minimal cuts into walls and the ceiling and very little mess.

The higher in the attic the hotter it is. Each register should have its own damper that can be accessed for adjustment. Here s a typical scenario for a 2 000 2 500 square foot two story. To reset the switch you ll need to climb up into.

If those dampers can t be accessed from below you ll want to install them close enough to the register so that you can reach them through the register opening. They just tear through them smash them climb on. Give your ducts the proper support. Some cases duct leakage air flow were worse than before the work was done.

Connecting an attic air handler to ceiling ducts in a single story home is a quick project. Burying ducts in attic insulation. Blown in insulation is cheap. No room in the bid for the time to do it right.

Just blow the attic to r 38 and over the top of ducts if needed. People can not carry ladders up into a attic and them place them onto 1 1 2 wide boards so they can climb over ducts.