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Should the portion of the discharge line INSIDE the condenser coil be insulated? I had my residential AC unit serviced and the service tech replaced the black insulation on the discharge line...

I live in Central Massachusetts and have a 7-year old, 2-story colonial. My attic is unfinished and only accessible by a pull down ladder. National Grid (my electric company) sent me information...

I would definitely recommend a Santa Fe dehumidifier. I live in MA and have a 2,100 sq ft two-story colonial. I burnt through three of the smaller dehumidifiers from Home Depot at $250 a pop. They...

I've tried the Flanders NaturalAire Standard pleated filters from HD. I find that after a couple of days of use, they bend in half because the cardboard filter fram is flimsy. Is this normal?

I...

I have an Aprilaire 6202 zone control hooked up to two White Rodgers 90 Series Thermostats. I do have two dampers installed (one at the beginning of each supply run), but I don't know what a bypass...

The contractor installed a complete second zone for the second floor. They used Aprilaire dampers and zone control box. I have two White Rodgers 90 series thermostats, one for each floor.

I have a White Rodgers Series 90 and the anticipation value is adjustable. The HVAC contractor (who I will never use again) set up the thermostat originally.

Question #1: My AC system is oversized for my home. The HVAC contractor installed an AC system on my one zone force hot air system. It could not cool the second floor and so the contractor...

Teddy Bear,

In your reply to my post you said that many use these dehumidifers to keep the whole house dry in the summer. How would a dehumidifer in my basement dehumidify my entire house? Would...

After reading the many rave reviews about Therma-Stor's Santa Fe dehumidifiers, I would like to get one for my basement. But I have two questions.

(1) My basement is 700 square feet. The Santa...

Teddy bear thanks for the info. One last question: I have my Aprilaire 8126 set to vent 10 minutes every hour. Is this enough? The 6" ventilation duct runs about 10 feet to my return. My home is...

I doubled checked and confirms that the Aprilaire 8126 is on the return side of the furnace (air going into the furnace). The Aprilaire 8126 does have the outdoor sensor on it.

On the hottest days...

I have a Concord Air 90+ furnance and a American Standard Alligence 14.

The HVAC contractor who put the heating system in, came back and put the AC system in. They claim it was properly sized.
...

During the summertime, the humidity levels in my house run between 48 to 54% with 50% being the average. The HVAC company which installed my AC unit says these humidity levels are too high and...

I have an Aprilaire 8126 installed in my home. The problem in the summer is that when the unit calls for ventilation when the AC is NOT calling for cooling. The unit turns on the blower to circulate...

No, I purchased the house from a contractor. I hired the same HVAC company who installed the entire system, to come install the humidifier.

What is the optimal % humidity for a home?

I'm tired of dry skin and static electricity in my house!

I have an Aprilaire 700 Humidifer installed just after my 90+ efficiency natural gas fired forced hot air furnance. The humidifier is in...

I live in Massachusetts and I have an American Standard Allegiance 14 AC unit. Should I cover the unit in the Fall and in the Winter to keep out leaves and snow & ice?

And does anybody know how I...

I don't have a bypass. You are correct, it had the coil installed and then I added the condenser about two years later.

I've had problems with the AC portion of the system from the beginning...

The second floor main duct is in the basement and the individual ducts going upstairs branch off of this.

There are three returns on the first floor and one return on the second floor.

I have a 2000 sq ft 2-story home in Massachusetts. When I purchased the home (new)a few years ago, it had a Concord Air natural gas forced hot air furnace. It was rated at 3.5 tons. It also had a...

I have a new two story house (2,050 sq ft) built in 2003. When I bought the house it had a Concord Air 90 gas furnace (90,000 BTU/hr output) and a Concord Air 3.5 ton coil both located in the...