If you think that your heat ducts aren't producing the amount of heated air you would expect there might be a good reason for it. Whoever installed the ducts probably didn't read the instructions provided by the furnace Manufacturer and just routed the duct wherever he (or she) felt, making tight turns and kinking without thought.
I found this to be the case in my MicroLite.
Here are a couple pic's of the ducts where attached to the furnace:
I ordered some better quality 4" duct from amazon, 25 ft for $16.99.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
Definitely a more substantial duct than the "Reynolds Wrap on a Spring" stuff the factory used.
To give you an idea of how convoluted the original duct from furnace to discharge vent to the side and below my refrigerator was I laid it out on the floor and snapped a pic in the shape it took while in use.
The black duct is representative of the replacement, shorter and more direct.
NOW, when the furnace kicks on there is some real air movement and heat from the ducts.
Old ducts were restricted enough I think it was causing some cycling of the burner. I could hear the solenoid operating, turning on and off the flame much like the oven does while baking.
Straightening out the runs did require the removal of some panel material but it was all under the sink, stove, and refrigerator, and mostly behind the little panels the factory puts in to keep pots and pans from interfering with ducting, wires, etc. Making a U-Turn around a panel because the person doing the electrical cut a corner off the interior panel and left room for the duct makes no sense when cutting a hole opposite the Hub on the furnace and making a straight run, completely by itself, would work so much better.
Anyway, just sharing because I'm sure that there are others out there that camp during cold weather and want their furnace to put out all the heat it's generating.
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"A wise man can change his mind. A fool never will." (Japanese Proverb)
"You only grow old when you run out of new things to do"
2018 Flagstaff Micro Lite 25BDS
2023 f-150 SCREW XLT 3.5 Ecoboost (The result of a $68,000 oil change
)