Ask This Old House
I was watching Ask This Old House. They were helping a homeowner with a 2 story home in a warm climate- furnace was in garage. It did have a furnace/ac. The home has 13 rooms and the zoning system installed cost $5,000 -6,000.
To the product being installed. It created a zone system using the existing duct work. It consisted of balloons being installed in the ducts a couple of feet in from the register. A small diameter air line was fished from each register back to the furnace. All the air tubes were connected to pump that inflated and deflated each balloon individually. There was a master thermostat and small wireless thermostats in each room. If the upstairs was to hot the ac would come on. When a room reached its desired temp the balloon would inflate blocking air to that room.
Even deflated the balloons would have to restrict the air flow by at least 25%. It seem like this alone would hurt the efficiency of the unit. Then when multiple balloons were inflated the air flow would be severely reduced.
这些节目似乎更像是不良翻新的商业广告，或者在这种情况下，解决了实际问题的不当解决方案。
GBA Detail Library
A collection of one thousand construction details organized by climate and house part
Replies
Robert,
I didn't see the show and it's the first I've heard of the system.
My first knee-jerk reaction is, "That sounds like a lot of fussy parts that will need maintenance and frequent repairs."
My first thought was that if I understood the scope of the work the price tag seemed mighty high. Did they have to tear into walls?
I inherited a box of back issues of Family Handyman from w/in the last 10 years. I often think " I'm not a professional or anything but that seems unwise". It would be interesting to do a program on "Imperfections to live with" but maybe that wouldn't sell many ads.
他们开始从A线圈上方的宽片上切一个12英寸的孔。然后，他们有一个大型风扇，可以通过系统提供吸力。供应侧的空气从寄存器上拉到了plenum的孔。每个寄存器。然后他们将钓鱼线袭击到了用塑料杂货袋制成的降落伞，插入注册并拉回宽松。钓鱼线固定在空气软管上，并将其拉回登记册。空气。被连接到气球上。然后将气球插入空气管内的一只或2个脚。
There were 13 rooms. They didn't say how many registers. So they were at least 13 air lines that ran from the plenum to each of the registers. A pump and manifold assembly along with the central controller and 13 wireless thermostats determined where the air came out.
$ 5,000的空气密封，绝缘材料和窗户胶片可能会帮助您舒适并节省能源。
Of course Ask This OLd House got a show and someone got a commercial.
I saw this episode and it was a lot of work. Seemed like it solved the client's "problem" so I guess that is ok. It always seems these shows go a bit over the top. I have looked for this episode online and have not been able to find it. It is season 7, episode 22.
And Martin, just to crank you up a bit, another ATOH had an episode on this past season where their HVAC/plumbing guy was using reflectix for insulating some ductwork. I figured if you saw that, blood would of shot right out of your eyes. Sometimes the ATOH guys are really smart, and then there are times like these where I wonder. Apparently they do not read GBA. I think this was episode 12, season 9 (not 100% sure).