Hot answers tagged forced-air
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There are various degrees of a "zoned" HVAC system.
A simple zoned system will include motorized dampers in the ducts to direct air where it is needed. e.g. If one room is too cold, but the other ones are fine, the system will shut the dampers to the other rooms, and then fire up the heater so just the one room is heated.
More sophisticated zoning systems ...
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After a bit of research, (translated: "mad google skills") I found an article claiming that lowering the blower speed may increase efficiency. I'm not completely convinced on this, since the claim is made by a company that sells variable speed blowers for retrofitting HVAC systems. I would think adjusting the heating element would save more energy than ...
5
The reason furnaces (as opposed to heat pumps) keep running is to cool them back off since the burner is pretty hot. It may be a safety issue (too much undistributed heat could make the furnace hot to the touch and possibly result in a fire), but I suspect it's also done to extend the life of the furnace from large temperature swings with the side benefit of ...
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The past home owner left these in my place. Where the blowing air just gets caught behind the curtains, is under furniture or tropical plants, I divert it, and this just happens to be towards places where people sit.
Keep in mind in the winter, having the warm air low helps mix it. But in all seasons, the vents are near windows and doors to counteract the ...
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If the furnace manufacturer supplies different burners for that unit you may be risking premature failure. The heat exchanger can be overheated and burned out if the blower does not remove enough heat. Proper duct sizing can resolve the issue you are having. Sometimes you have to add more ducts to achieve the proper pressure and velocity.
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One of my rental homes that was build about 3 years ago has a Honeywell thermostat system that zones. There is one air handler/AC/heater, a thermostat on the first floor, as thermostat on the second floor, electronic dampers in the duct work in the attic, and a controller in the mechanical room that connects to the thermostats, air handler, and dampers.
see ...
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Looking at the specifications on the page you linked to, it appears to be made of the same basic materials as other duct tapes: plastic coated fabric with a rubber adhesive. Premium Grade it may be, but I think you'll run into the same problems -- it'll get brittle and crack with age. I've used aluminum foil tape where I've needed spot repairs; Home ...
3
Speaking strictly from an performance perspective, it would be very difficult (neigh impossible) to set up a good variable air volume HVAC system if your furnace runs at a fixed speed.
As a hack - you could certainly set up a damper system with actuators controlling to a room temperature setpoint with no other changes to your HVAC configuration. However, ...
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Empirical Engineering Answers:
Yes: you will save electricity costs by running your blower on low.
No: you will not save on gas/oil costs by running your blower on low. Because the slower air velocity over the heat element is transferring fewer BTU units into the circulated air and they simply go up the exhaust pipe.
The NET difference of the above two ...
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If you're technically inclined, I saw one post hovering round the tubes about a guy that did some home automation - namely zoning, via 2 wire temperature sensors for the rooms, servo motors to control the registers, and a Linux box to rule them all.
Of course I can't find the link now that I look for it...
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