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Re: Inflatable HVAC duct valves

Subject: Re: Inflatable HVAC duct valves
From: "Brian" <BrownTiger@xxxxxxxxx>
Date: 14 Dec 2005 04:04:37 -0800
Newsgroups: comp.home.automation
References: <dnailq$hps$1@xxxxxxxxxxxxxxxxx> <EACmf.258887$zb5.42329@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> <dnf5tp$2js$1@xxxxxxxxxxxxxxxxx> <ua8mp1dm4qrogl7t2j79im4osog40qchue@xxxxxxx>

Zoning systems can be made to work very well....

Problem, and a sad part of it is HVACs are mostly hacks.
Three aproaches can be used to lower static with zoning:
1) Controlled leaks ( dampers don't close 100% )
2) Damp zones ( like two story entrances )
3) barametric damper bypass

> ask because one of our furnaces died this week (2 days after its annual
>$90 inspection/tuneup ;-( so I am in the process of rethinking that part of
>the HVAC system.

How? did heat exchanger split? If so why didn't $90 guy see the crack?

Or do they just want to sell you a new 6k system?

How old was the system anyway?

References:
- Inflatable HVAC duct valves
  - From: E. Lee Dickinson
- Re: Inflatable HVAC duct valves
  - From: Jeff Volp
- Re: Inflatable HVAC duct valves
  - From: E. Lee Dickinson
- Re: Inflatable HVAC duct valves
  - From: Marc F Hult

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