HVAC size for townhouse
Oscar Astwood
last year
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Austin Air Companie
last yearlast modified: last yearCharles Ross Homes
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carrier hvac or trane hvac
Comments (5)Jt Some questions please. What is your location? What size home living area? What size furnace and eff are you replacing? What size AC are you replacing? I would like to know the exact mdl number evap coil for each quote. What thermostat is proposed for the Carrier quote? That is a big difference between the 96% eff Carrier furnace and the 80% eff Trane furnace-both 60 K input. That would be about 56 KBTUs output on the Carrier and about 48 KBTUs on the Trane. Not insignificant. I don't care for some shortcuts that homeowners make particularly on reusing linesets and using existing thermostats that shortchange a nice furnace's operational capability. Post back with the info requested. IMO...See MoreOver sized or under sized HVAC?
Comments (11)I am in central NJ and a live in a 1980's house a little larger than yours. I am skeptical that a 3 ton AC is going to be sufficient. Not sure what "well insulated" means. You probably have R11 insulation in the walls, and R30 in the attic. That was considered good in the 1980's, but barely meets today's guidelines. Have the windows been replaced? If so do you know the brand and model? I also think a 18.5 SEER AC is over kill for the Philadelphia area. The return on investment going from a 15-16 SEER to 18.5 SEER is very long. I don't believe you need to spend money on an electronic air cleaner. If the windows are tight you should not need a humidifier. You can always add it later if you feel the house is too dry....See MoreHVAC: House Design - HVAC input please
Comments (6)I suggest separate systems for the first and second floor. That is the best way to have even temperatures on each floor. It costs more up front, but you potentially have lower operating costs. You could zone the loft off the second floor system. However if you are going to be working 10 hours days with multiple pieces of equipment generating heat then spend the money on a mini split....See MoreOver sizing a variable speed Hvac
Comments (117)My new issue that has been coming up randomly is that my trane furnace (xc80). Has been kicking into the higher speed mode but not sure why this is happening. Sounds a little like error code hell to me. Something I learned nearly 10 years ago with communicating systems. It's an interesting story but not much fun IMHO. I know this is primarily where everything is headed with nearly every US manufacturer all they do is copy one another with their proprietary signal garbage. Hector, Is there a way for you to figure out what the "device event is" or the "device that is triggering this rhetoric over and over"? My guess is probably not and that you need a skilled person there diagnosing it in person. Given the age of this system (less than a year old) it's a job for the installing contractor to figure out & to fix. But if you can find out what device is causing, this can only help find the problem. They said it was hard to stop a Trane, yet recently in the news a real one was derailed dumping toxic crap everywhere. I guess stopping isn't your problem right now or it's signaling an upcoming "derail event"? Not what I would call comforting for a system that is less than a half year old. Not such a great deal now. If I've seen that once, I've seen it a thousand times. Good luck I hope your contractor figures it out... because this will be your path forward every time it acts up. Keep us posted with developments as it makes for a good story of what not to do. Helping others. I service the Katy, Texas area. (not for you, but others who may not read the whole thread) Things are changing in HVAC in the near future I lay out the R410a phase down time line and upcoming equipment ban in chronological order and more click here to see the fun headed your way for home comfort solutions of the near future....See MoreOscar Astwood
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