New HVAC flex ductwork new plastic smell
4 years ago
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new construction - help with hvac quote
Comments (8)moonsoon first and foremost, as said in my previous post, you need a load calculation in writing broken out by each zone. I believe 10.5 tons is grossly oversized. EACs refer to electronic air cleaners which I believe the GAPA is Carrier's model. You need some type of air cleaner for both systems. EACs are not a cure for asthmatics but may help. Don't know about the GAPA model but most require regular cleaning/maintenance and do produce a small amount of ozone. I would not have one personally. I have a 5" pleated media filter that I change once a year. I lean toward the KISS system(keep it simple stupid!). No offense intended. The "return" air recirculates your inside air. It has to be sized to be in balance with your "supply" air. For example, if you have a 4 ton blower, your ductwork system should be sized accordingly-1600 CFMs both supply air and return air. One large return such as listed in your original post with such a large space will give poor airflow/exchange and most likely will be noisy. That was the reason for my suggestion for another return. And definitely don't place it in a living area-they should be centrally located in your home normally in an inside hallway. again I know that electric rate is not correct but I will not beat a dead horse. I do think a homeowner should have an apprx idea of their utility rates. what are the tier electric rates? I don't have a strong opinion on UV lights. Most homes don't have them and I would think they would be better indicated for areas with high relative humidity or to focus on specific problems with your evap coil. You do want Carrier's tin plated coil not the copper models. as far as ductwork, metal main trunk lines that are insulated with flex for supply and returns would be my choice. check with county building office and see what code is for new construction. IMO...See MoreNew Construction HVAC Question
Comments (5)OK, after doing some more research I think I may have answered my own question! Would like some confirmation from the experts here though. Read that each ton is about 400cfm and that a 16in flex duct is only rated for 850cfm. So that would make the third companies solution a bad idea! Please tell me if I am understanding this right? Also, I am looking at buying a Goodman two stage 16 SEER 3 ton unit. The model numbers are: Condenser Model No. DSZC160361 Air Handler Model No. AVPTC313714 I have read opinions of Goodman and I would buy a different brand but at this point money is a big factor. Anyway, is it worth it to get the Comfortnet thermostat or would a White Rodgers model # 1f95-1291 work just as well? Also, is there a performance benefit to the remote outdoor sensor or is it just to display the outdoor temp? Thanks for all the help!...See MoreSnakes....crawlspace....and HVAC ductwork
Comments (57)Chispa - It was just laying on the floor so I dont think there was anything it got caught in. I know there was a small gecko living in the house. The tail seems kind of large to be his, but i did see him near the bird room a few days ago. I dont think anything would be big enough to eat the birds, unless it is a large snake, but there’s no way a large snake got in here, unless it came through the fireplace. Whatever it is, if it’s still in the house, I suspect it’s a reptile and living under the built in appliances in the kitchen where it’s warm. I’m going to get up tonight with a flashlight and look around. The birds are safe at night because they sleep in night cages in the master suite area....See MoreNew HVAC for major remodel in California pricing & system questions
Comments (11)Thanks for all your feedback. I received this email from one of the people quoting my system. Would like to know if this is sufficient for a house my size 2750sf and if not, what should I ask for to be included? I understand the returns are important. I'm located in Northern California and would only use Air Conditioning probably a couple months out of the year. this are the model #'s and specs on the Bryant 4 Ton heating and cooling system, *Furnace Model 915sa4808017 95% AFUE Single Stage 80,000 BTU *Condenser Model 105ana048000 14Seer AC PUR. *Indoor Coil CNPHP4817 PUR. Incased *Zone Control System- Ultra Zone Model NCM-300, Motorized Dampers Model URD 12" *Ducting- Sliver Jacket Flex Duct R6 Polyester Core *Copper Line set Mueller Industries 3/8"x7/8"x50' We can do the install for $15,500, all materials and labor included with one year warranty on install. Heating and cooling units under factory warranty. All work and materials up to code standards....See More- 4 years ago
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