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View Full Version : Complete HVAC Overhaul ?s



basket chick
06-17-2005, 08:39 PM
We are looking at completely replacing our HVAC system including replacing all the ducts. We recently discovered termites at our house when they swarmed. The pest control company that treated it said that the condensation off the ducts in the crawl space was really bad and contributing to the termite problem. The moisture problem in the crawl space is pretty bad overall. We did have them install a vapor barrier (plastic) on the ground, too, but that was it for that. Any ideas on that? Anyway, since our winter heating bills are pretty bad ($300+), our system is old and I have asthma and allergies, we thought it may be best to replace the whole kit and caboodle.

Currently we have the original 30+ yo GE Electric Air Handler (model BGLE051D1A00) and an AC only outside unit at least 15 yo (can't tell make or model) - all electric system. I have been reading a lot of posts to get ideas, etc. Problem is finding a good installer. I know no one who has done their system in the last 10 years or at all with the exception of one NON-recommendation. I went through the BBB list and a local home remodeling association's list and called several people, but most can't do an estimate for at least a few weeks.

So far I have only gotten one person to do one. Can't say I'm completely ease with him. He didn't evaluate the energy load to determine size although he said he would come back and do one if I wanted. They work with most brands, but his recommendation was a 14 SEER Trane XL16i heat pump (or the 16 SEER 2-speed one but he discouraged us on this one since it is frequently backordered), with matching variable speed handler, their programmable thermostater and an electronic air cleaner. He said we don't need a dehumidifier with that system - it will completely take care of it. Our heat pumps really comfortable? I know in the past people told me their houses were colder in the winter with heat pumps.

Any suggestions of what to do or what is best? Also, what are the differences between a 14 or 16 SEER system other than energy savings? It's about a $450 difference after rebates. Is that worth it? Thanks for any help you can give me. I appreciate it!

drk
06-17-2005, 10:18 PM
You will not be able to determine good from bad contractors from BBB most people will not take the time to call. Your friends home is not cooler 70 degrees is 70 degrees no matter what type of heat! It is true that a heat pump will only put out about 90 degree air where most everything else is around 120. 14-16 seer will be worth the extra money if you pay a lot for electric. Two speed will take a lot of RH out the air.

basket chick
06-17-2005, 11:08 PM
"Your friends home is not cooler 70 degrees is 70 degrees no matter what type of heat!"

What I think they mean is that it FEELS colder in the house. And I can see that if the air coming out is 30 degrees colder!

Our electric rates are around 6.3 - 8.2 cents per kwh depending on the time of year and amount used. Don't know how that compares elsewhere.

ek
08-10-2005, 09:00 PM
I would recommend having each company give you a list of at least 10 refrences who have all had full systems installed. Then call each one.

You need to have a load calculation done because higher efficiency units use smaller compressors. Smaller compressors put out less cooling. (Basically, if you purchased a 4-ton ten years ago it would produce 4-tons of cooling. Todays high efficiency 4-tons are closer to 3.5-tons of cooling.) With that said higher efficiency units are usually quieter and have better warranties.

If you don't mind your unit sounding like an airplane taking off the luxaire would be fine, but don't expect too much out of cheap equipment.

drk
08-10-2005, 09:05 PM
10 refrences

What the F#$%