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Is it a bad idea to use flexi insulated duct with a heat recovery unit or is it ok to use flat pack and round duct

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Where about do you want to put this on if i may ask?
I will be able to help you then..

Thanks
Wouter...

Posted on Sep 10, 2008

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Posted on Jan 02, 2017

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The blower starts before its warm and it blows cold air for about 30 sec when its shutting down .


When any unit 1st come's on, you'll always have some cold air that's in the ducts that will blow out before you get warm air. If your duct work is uninsulated in a cold basement or crawl space then it will be even more noticeable. When the unit is heating from the Heat Pump mode, it takes a little longer for the gases to get warm enough so you'll fell heat. When it gets cold enough for the unit to switch from heat pump to the gas or electric heat source, you'll get warm air faster. If you have gas heat, some Thermostats have an anticipator setting for the gas valve. If it's set wrong it will effect the on/off cycle of the gas valve.
All duct work in non heated and a/c spaces, including inside walls,above dropped ceilings, in attics and crawl spaces, must be sealed & taped at the seams and joints and then insulated and taped.
Most new construction has solved that problem with insulated duct board, flexible insulated supply's and special tape.

Dec 12, 2013 | Rheem 13PJL30A01-RHLLHM3617JA 2.5 Ton 14...

3 Answers

Heat ducting to the main bedroom


You can use flexible insulated duct work to route it anywhere you would like. Most manufacturers also make elbows, tees etc and can be connected with zip ties.

Jun 11, 2013 | Palomino 2013 Sabre 32 BHOK

1 Answer

I have an Aprilaire 1750 installed inline with my upstairs central air system in the attic. The unit's ducting appears to be installed as indicated in the installation manual, but when the unit is running...


Your dehumidifier is likely working correctly. When operating and removing moisture, a dehumidifier will supply warm/hot air to your house. Your dehumidifier moves less air than your A/C, so your supply ductwork in your house is oversized for the dehumidifier. This will lead to uneven feeding of your supply duct branches with just the dehumidifier operating.

Since your dehumidifier is installed in the attic, make sure that the ducting connected to it is well insulated. Also make sure that your dehumidifier cabinet is insulated. These actions will help prevent heat gain from the hot air in your attic.

Is your dehumidifier bringing in fresh air from outside? If the outside air is hot and humid, the dehumidifier will supply warmer air to your home.

Some people run their A/C fans continuously to help with the air distribution, but this is a bad idea since it increases energy usage considerably.

DryDog

Aug 06, 2010 | Aprilaire 1700 Dehumidifier

1 Answer

I have an HRV system and want to know if it is possible to run a heat pump through my HRV ducts in the ceiling?


Hi, can you tell me what kind of heat recovery ventilation system you have? Is it a Honeywell, Lennox, ect.? Also tell me about how you have it set up as far as the duct work you are talking about and what kind of heat pump system you plan to install. If you tie your central air heat-pump ducts into the HRV ducts, it will interfer with the air flow. If you will, please tell me what you plan on doing as far as installing what to your home? New duct work for a new central air heat-pump unit, or what, so I will have some idea on what you are doing. Thanks so much. Contact me through my user name below.
Sincerely,
Shastalaker7

Apr 13, 2010 | Heating & Cooling

1 Answer

COLEMAN MACH 3 MOUNTING ON INSIDE OF CAMPER NOT ALIGNING WITH MY


Did you purchase a new Ducted Ceiling Unit with the Upper Unit air conditioner? If you are replacing an older mach 3, the ducted ceiling packs are not compatible and you will need to purchase the ceiling pack as well. The ducted ceiling pack part number for the 8333 series Mach III AC is below.

1. Heat/Cool Air Distribution Box - 8330B735
2. Cool only ADB - 8330A733
3. Wall Thermostat (if needed) - 7330G3351

Hope this helps.

Jul 01, 2009 | Coleman Heating & Cooling

1 Answer

Does anyone know if a Duo Therm model 620515.331c is ducted or not???


The upper unit itself is not ducted. They are all the same. The ducting is done with the lower unit or "Ceiling Pack" of the air conditioner. You need to see your RV is ducted, ie...vents in the ceiling that blow the are out. Usually they are round and mount into the ceiling. Another way to tell is if the unit has a wall mounted thermostat.

Hope this helps,

Jeff

Jun 24, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

Does not dry completely


how well did you clean that duct, the duct is problem 90% of the time when the dryer does everything else, pretty much if the dryer heats and tumbles its doing its job

May 04, 2009 | Dryers

1 Answer

Cold air coming from the intake of the central a/c unit. The unit is switched off and it is winter, so why would cold air come from the intake


Thanks for your question,
Just a couple of questions first, is your ducting insulated ? is there a fresh air intake on your system ? if either of these is the case, the first would be that you need to have your duct insulated, it is good practice to have them insulated as it will save you money down the road as to not have as much heat loss or cold air from the duct escaping into the home, second if you have a fresh air intake, alot of times that is where fresh outside air would be coming in from, there should be a damper on the venting, if there isn't I would suggest having one installed, normally it is installed on the return side of your ducting. Hope that was helpful, please leave some feed back as to how we did, thanks again,
mr.grzz

Jan 23, 2009 | Carrier XHB123D X/Y Series Heat/Cool Air...

2 Answers

Jenn-Air Downdraft ducting roof Rack w/flapper


go to www.luxurymetals.com
there are many good high quality vents on the site

Oct 08, 2008 | Jenn-Air HV363 Kitchen Hood

3 Answers

Air ducts are noisy


Many heating/cooling ducts are metal, so they conduct noise quite readily from the air-handling unit to your rooms. To break the conduction of sound, you can have a heating contractor insert flexible insulation ductwork between the heating/cooling system and the ductwork runs. If you hear a pinging or popping sound coming from the ductwork, this may be caused by thermal expansion or by air blowing past a loose flap of metal. Track along the duct runs, listening for the sound. If you find it, make a small dent in the sheet metal to provide a more rigid surface that?s less likely to move as it heats and cools.

Jan 18, 2006 | Haier Energy Star ESA3183 Air Conditioner

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