5KW heat strip; heat out of 1 vent only; not 6 other vents

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  #1  
Old 12-20-10, 12:14 PM
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5KW heat strip; heat out of 1 vent only; not 6 other vents

I'm in 1250-ft2 house Florida. I have 5kW heat strip in my Goodman air-handler. I set thermostat to heat at 68. The heat air coming out like this:
1) 105 degree on 1 vent (10-ft distance). This duct coming out from a point closest to the center of the Air-handler.
2) 85 degree on 1 vent (30-ft distance)
1) and 2): ducts coming out from back-side of Air handler

All other 5 vents (2 ducts coming out from top side of Air handler, 2 from front side, 1 from end side): 76 to 80 degree. Because of this, the house is heated very slowly. Among these 5 vents, 1 is only 10-ft distance (living room vent) and force out a lot of air.

No leak from any duct.
I tried covering 1/4, 1/2, or 3/4 of vent 1) and or living room vent. Nothing helps.

What is the problem here?
 
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Old 12-20-10, 04:15 PM
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5KW is not very much heat. That first reading must involve radiant heat. (line of sight from strip heat)
 
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Old 12-25-10, 02:12 PM
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So should I add 5KW more? Can I do it by myself? (my heater circuit breaker capacity is 120 Amp). If yes, where to buy 5kW more heat strip and is there instruction to add?
 
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Old 12-25-10, 06:12 PM
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5KW is a 30 amp breaker and 8 gauge wire. 10KW would require a 60amp breaker and 6 gauge wire.

You wouldn't add 5KW, you would replace it with a 10KW heat strip.
The installation of a heat strip is a few wire nuts, four 5/16" hex screws, and plug in a harness.
 
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