Heat Pumps and Electric Heating - heat pump woes

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View Full Version : heat pump woes


youse guys
12-05-05, 05:44 PM
is there any advantage to closing off rooms and vents when using a heat pump or am I defeating the process?


lenny56769
12-05-05, 07:56 PM
why would you want to close vents to start with . if you close rooms you wont get any return from rooms id leave them open unless your not useing rooms and dont care if they get cold some

youse guys
12-06-05, 04:47 AM
thanks lenny, appreciate the response


mattison
12-06-05, 05:34 AM
One of the problems with closing vents is that you take a risk of not having enough airflow across the heating section whether it's the heat pumps coil or the resistance strips. This will cause the head pressure switch to trip or the overloads on the strips to trip on you.

TigerDunes
12-06-05, 09:57 AM
youse

In one word-No!

In fact you could actually damage your system...

DNT1
12-06-05, 10:25 AM
If you have a properly designed/installed duct system you most likely would not notice much difference in unit performance by closing off a couple of rooms. However most residential systems are not properly designed or installed (oversized unit with undersized duct) and closing off supply diffusers could drop the poor unit over the edge of a cliff metaphorically speaking and may actually increase your energy usage (defeating the purpose) and possibly even damaging the compressor. Have a reputable HVAC company run the duct and unit calculations and also check performance (superheat/subcooling/airflows static etc) before and after changes are made to the system. Probably a couple grand to have professionally done, usually not within a homeowners budget? Bad thing is if you do not get the right company that is really knowledgeable and has the right equipment the results are basically worthless. Quote from Cowboys guide to life "If it don't seem like its worth the effort, it probably ain't"