[Mikeod]

Is anyone else having problems with the MBr and bath in their Lantana being colder than the other parts of the house in the winter and hotter in the summer? We had the ducts checked to be sure they hadn't collapsed and they were open. But the difference in temps are really noticeable. Our thermostat is in the short hall between the living area and the master.

Any ideas?

[graciegirl]

Originally Posted by mikeod

Is anyone else having problems with the MBr and bath in their Lantana being colder than the other parts of the house in the winter and hotter in the summer? We had the ducts checked to be sure they hadn't collapsed and they were open. But the difference in temps are really noticeable. Our thermostat is in the short hall between the living area and the master.

Any ideas?

We have a different model but our water closet area in the master bath is CHILLY these past few cold days.

Thinking about hanging insulated curtains at the window in there or even getting a small space heater.

[buzzy]

We have a smaller house, the Jasmine, and the thermostat is on the living room wall. In the summer, the A/C cools down the bedroom by about 2 degrees compared to the temp reading on the thermostat. In the winter, the bedroom runs about a degree warmer. To compensate for this difference, we have adjusted the discharge grills to reduce the flow somewhat in the BR, but have not been able to eliminate it.

[glgene]

Originally Posted by mikeod

Is anyone else having problems with the MBr and bath in their Lantana being colder than the other parts of the house in the winter and hotter in the summer? We had the ducts checked to be sure they hadn't collapsed and they were open. But the difference in temps are really noticeable. Our thermostat is in the short hall between the living area and the master.

Any ideas?

Mike,

What year was your Lantana built?

Gene

[batman911]

Could it be the direction the sun hits your home? Is it the North side of the home?

[blueash]

There is only one vent in the MBR and it is more distant from the furnace than those in the great room thus more opportunity for the heat/cool in the duct to be affected by the temperature in the attic. Thus the heat is lost in the winter and the A/C is lost in the summer. There are 4 vents for the abt. 650 sq ft of the great room/kitchen/nook space or about one per 160 sq ft. But only the one vent for the 230 sq ft in the MBR. Combine the loss of heat/cooling over distance with the fewer vents per sq ft and you should not be surprised to get the result you are seeing. If you use your ceiling fan with upflow in the winter and downflow in the summer you can increase your comfort significantly. The only other thought I might offer would be the decrease the flow to all the other vents which would result in more even temperatures but decrease your energy efficiency and raise your bills I would think

[Mikeod]

Originally Posted by glgene

Mike,

What year was your Lantana built?

Gene

Fall 2005

[Mikeod]

Thanks for the suggestions. We've played with the vent adjustments in the MBr and in the other rooms to see if we can get more heat/AC but the result is minimal. So, for now, it's an extra blankey in winter and fan on high in summer. We may consider one of those Mitsubishi units if it becomes intolerable to the spouse.

[2 Oldcrabs]

I have a Lantana built in 2012. Have same problem. The flex duct in the attic is R4 which is the minimum. R8 would be nice. A lot of lost thru ducts. They also put the "return air" grill too close to the "supply' grill in all the bedrooms. You can try adjusting the supply as far away from return as possible. I am having the "foil" energy shield installed in the attic next week, hoping this will help. (cost $1900 for Lantana). I am also looking into putting insulation over the ducts or blowing more insulation in the attic and trying to cover the ducts. You may want to walk thru the attic and check the insulation, I found several spots where it was low and they came back under warranty and added. What ever bedroom has the "tray ceiling" has R13 batts not R30.

[l2ridehd]

All these things discussed will help the problem. Fans set for summer and winter direction, adjusting the vents to allow more flow to the bedroom, adding insulation to the attic and the foil reflective barrier, but also buy the special insulation for duct work and wrap those ducts going to the bedroom completely. Installing a mini-split is an expensive solution. They would run around $2000 for one the right size for the Mbr/Mba that does both heating and cooling. If you do it, get the LG vs the Mitsubishi.

[Mikeod]

Thanks all. Now I have plenty to thinki about.