Here's where we ended up:
1. 3" closed cell foam on roof down to 2nd floor plates
2. Ultra-Aire dehumidifier
3. New supply ducts with 3" R-8 insulation (was cheaper than just reinsulating...
Type: Posts; User: beachwalker
Here's where we ended up:
1. 3" closed cell foam on roof down to 2nd floor plates
2. Ultra-Aire dehumidifier
3. New supply ducts with 3" R-8 insulation (was cheaper than just reinsulating...
I am dealing with the premier contractor in the area. Their manual D program was on one computer that crashed, so they no longer have the capability to do it. I am not doing this installation...
Hello again. My two credos for this summer:
Experience: What you get when you don't get what you thought you were going to get in the first place.
Research: It's what I am doing when I...
Abso-posi-tutely. They foamed from the ridge down on to the knee walls right down to the wall plates. They either stuffed fiberglass or stapled felt across any voids and foamed over it. 3" closed...
Carnak:
That's funny. Reminds me of the guy who said: when you ask someone a yes or no question and the answer is long winded or anything OTHER than yes, the answer is NO. Like when they ask...
Carnak:
We decided to replace the supplies... and maybe even the returns. That's why I was seeking manual D info... to make sure when they are replaced they are properly sized. I really didn't...
I am the not so proud owner of two of those Signature stats from Lennox via Invensys. One had to be replaced out of the box because it fed 24 volts to the compressor circuit whether the thermostat...
Welcome to South Carolina! Where the most popular bumper sticker is: "We don't care HOW you did it up North!"
Anyway, when it comes to 50,000 amps, or whatever lightning is, you'd probably need...
Thank you.
Most of the wiring in the attic along the bottom of the roof rafters is for a few light bulbs and utility outlets, but I did extend a circuit for the new dehumidifier, which is about 12...
cem-bsee:
Yes, our attic is now sealed from the ridge down to the 2x6 plates with 3" of closed cell polyurethane foam. Where we had overhangs, there were knee walls from the outside wall up to...
Thanks for the input, but I researched this as thoroughly as possible before foaming. I called Elk, the manufacturer of our shingles, and they have what I will term a "letter of acceptance" to...
Greetings all. We've come a long way since I started this thread in June. Last Friday they finished the closed cell foam on our roof. We went with 3" and I have high hopes. A 30 pint dehumidifier...
Absolutely agree. You may not see any references to class A chimney on the pipe or cap, but if there is a manufacturer's name, like Majestic or Superior, etc, they make their own pipe to fit their...
coolwhip:
Yes, I have visited both sites. We have narrowed the field to Nutone ILFK250 and Fantech REG140. The Nutone has higher cfm's, but only one year warranty. The Fantech, has lower cfm's,...
Thanks for the input. The steam shower is enclosed and only the steam or humid air in the case of a shower escapes when you open the door or the glass panel at the top of the door. The return for...
This is a large master bath with whirlpool bath and steam shower. At just over 200 square feet, it has a vaulted ceiling running from 8' to 9'-6". I was going by the 8 turns per hour general...
While prepping to foam our roof to solve a condensation problem with our ducts in the attic, we discovered our builder never connected a duct to the bath fan. It has been blowing the humid air into...
Sorry folks.... this re-post was a mistake.... we already went down this road....
We just replaced two heat pumps. House new in 98, but salt air destroyed condenser fins. We had upstairs and downstairs systems with 3 1/2 ton condensers and 4 ton air handlers 12 SEER.
I...
Here's my update:
Today they started application of 3" of closed cell foam on the roof to seal out the heat and humidity. They expect a two or three day job to complete. Here are yesterday's attic...
teddy bear:
Thanks for the response. Wonder if it would be worthwhile to install a one way damper in the 16" supply duct. That would solve the backflow problem and probably wouldn't bother the...
I agree with previous reply that most vented logs do not put out much heat, but they most often look a lot better than the unvented. You will have to keep your damper open while burning.
If you...
At 2 lb density it is my understanding the R value is 7 per inch. They will be spraying 2 1/2" +/- 1/2". Should have the job done within 3 weeks.
Thanks mjballweg.
Your installation is somewhat similar to mine: 38,000 btus downstairs and 3 tons upstairs. AFter the roof is foamed, if the lennox units can't do the dehumidification job I will...
Most all of the foam contractors in this area are using the 2 pound foam. One was using 1.9, but no one above 2.
This thread is a few months old, but of interest to me as I am considering an Ultra Aire system to supplement the new 18 SEER Lennox heat pump we installed. Long story short, after unit was...
Thanks, Iceman
That is my plan, except we are going with the closed cell foam for extra moisture control. I was figuring the same thing relative to the supply duct leaks..... they would help...
Grig:
The Bosch Aquastar 250SX is the one I was thinking of getting, but your comment about the single lever faucets is something I did not consider. Would the problem be solved or alleviated by...
1.80 per sq ft is cheap compared to the quotes I got here at the SC coast. We are about to contract for 2 1/2" of closed cell foam on the roof and knee walls to seal off our attic. I will let...
Sounds like multiple problems depending on source of water.
1. drain pan should drain on its own... checking drain line is good idea. Hope this is it and source of water is normal condensate...
I am considering the same move... from keeping 40 gal of water hot all the time to the tankless.... the main players are: Bosch, Tagaki, Rinnai. Bradford White also makes one as does Paloma.
...
Yes, the ducts were insulated when new with 2" of fiberglass. If you would like some (I think) very interesting reading, here are the background links to the whole story. I am still in the middle...
RoBoTech: Yeah, the reasonable person might ask that question.... but once you live on the SC coast, you no longer ask that question. It is hot hot hot and humidity out the wazoo. The Lennox SEER...
Is there one brand or another that is the "leader of the pack" in whole house dehumidifiers? It appears to me that Ultra-Aire and April-Aire are the two main competitors. I had occassion to speak...
True, you can't prevent every accident. You can prevent the damage caused by stupidity, like the person walking through the mud and heading for the living room carpet, or bringing in dirty tarps, or...
Based on experience, which incidentally is what you get when you don't get what you thought you were going to get in the first place, here are the two most important words of advice when you have...
As usual, this forum provides fast and useful answers. To clear up the louver question, I should have more properly described them as return and supply registers.
And thanks for the mfgr...
Greetings:
I just purchased an anemometer so I can calculate flow into returns and out supplies to see if there are any serious duct leaks. Once I know the average velocity through the louvers, I...
Good idea!
Am I correct in concluding they seal off all supplies and returns, then pump some air into the system to see how fast the pressure drops using a manometer?
Or do they do the...
New developments:
One of the two prospective foam contractors begged off doing the ducts and wants to foam the roof with Icynene and seal the soffits and vents. They claim supply duct leakage will...
uktra:
As I said, he's a friend who is still working and I don't want to "wear out my welcome" for free advice, so it comes down to a "who do you trust". Admittedly, there are always many sides...
New development: HVAC contractor will not guarantee that new ducts with new fiberglass wrap will stop condensation... very disappointing.
Am now pursuing closed cell foam bids as these...
Don't you just love it when the subs begin blaming each other? Especially the pieceworkers, who just want to get in and get out.
On the matter of the foam, I have it on good authority that...
I am posting this here, because of what I learned here on another thread. I am experiencing heavy condensation on attic ducts and have decided I either have to reinsulate the ducts or, as has been...
Looks like this thread has headed toward the comedic side, so as long as you bring up saunas, when we built this house in 1998 we installed a steam generator in the master shower. The builder asked...
Carnak & Dash:
You're both right on.... the first air handler did not have the baffles changed over... so water missed the pan and soaked the insulation... and it rained under the air handler. ...
Carnak:
I tend to agree with you relative to their meter... my own dry & wet bulb readings with digital thermometer have yielded closer to 61% rel hum and 75 deg. dew point in the attic.
To...
Carnak:
That link was right on point. Thanks...
Factory engineer was here today and their solution was to increase the cfm's to 1500 and jumper y1-y2 in air handler, so effectively, the...
I just went through a similar situation with new high efficiency Seer 19 heat pump. You could check the following: make sure the condenstate is flowing into the correct channels and not missing the...
Jacob:
Thanks very much, but I am unfamiliar with the term "heat leakage". I was expecting a formula with parameters like:
dew point or relative humidity
ambient temperature
duct temperature...