We have been having problems with our HVAC system ever since we had our house remodeled and a new HVAC system installed. The HVAC guy that we have now has not been able to really help us that much so before I called someone else from afar, I thought I see what info I can get from here.
The house was originally built in 1965 and was somewhere in the area of 1800 heating/cooling square feet. In 1976 the
carport was converted to a living room which bumped the sq footage up (sorry I don't have exact numbers). In 2007 we
remodeled the house somewhat by taking out walls and adding on, and now the total square footage is 1946. Before the house
was remodeled in 07, the air handler and all duct work was under the house in a craw space and the system was gas, and
the system worked pretty good. The new unit that was installed during the remodel was installed in a closet and ran into
the attic and the air vents were run through the ceiling. This new unit is electric. The old vents in the house to the
original unit were covered up with flooring. The old unit is still under the house with the duct work running from it.
Layout of Vents in house (with rough room dimensions)
Den Area - 3 Vents, room size is around 20*14
Living room/kitchen - 4 vents, room size is around 16*12 ***(Walls were removed in remodel to make kitchen bigger, so now
it joins with the living room)
Utility Room - 1 vent, room size is 12*12
Dinning Room - 2 vents, room size is 14*12 ***(This room is a new add-on in 07)
Bathroom #1 - 1 vent, room size 8*8
Bathroom #2 - 1 vent, room size 10*10
Bedroom #1 - 1 vent room size 12*12 ***(a/c handler is in closet in this bedroom)
walk-in closet - 1 vent, room size 7*7
Bedroom #2 - 1 vent - room size 12*12
Bedroom #3 - 2 vents - room size 12*12 ***(this room is now a computer/work room, it has 2 to 3 computers running)
Short hallway connecting rooms
The hvac unit -
The air return/filter is in the hallway. The thermostat is also in the hallway.
This is the model numbers on the unit we have.
Rheem Classic Series
Outside unit is model number - RPNE-048JBZ
Inside unit is model number - RHLA-HM4821JA
White Rodgers thermostat.
20" * 20" air filter
This unit also has a issue that we can never get our hvac guy to pinpoint. When we were using the A/c, right before it
came on, it would make a clicking/ticking noise for about 5 mins or so.
The Den, Living room/kitchen, Dinning Room, and connecting hallway are cold in the winter and do not feel like the system
is heating the rooms properly. We have to run a set of gas logs in the den to help heat that area of the house. The same
can be said about Bedroom 2 and 3. Bedroom 3 especially, it has the 2 vents in it to keep it cool in the summer because
of the computers running constantly, but that room still climbs up to 88 at times in the summer when the thermostat is set
to 73. The heat from the computers in the winter help keep it warm somewhat. Wouldn't a room with 2 vents be burning up
because of the heat or freezing because of the a/c? The vents in the other parts of the house do not feel like much air
is being pushed through them. The original system really pushed a lot of air out. Also the original duct work was
aluminum duct wrapped in fiberglass. The new duct work is aluminum nor is it heavy like the original.
From the information I have gathered and posted here, is the unit we have strong enough for this house?
Would maybe changing the duct work out with the heavier sheet metal type help air flow?
Do the multiple vents in a small room really have a BIG effect on temperature, like bedroom 3?
Do we need to move the thermostat down the hall towards the cooler end of the house??
Thanks for any help and information.