Originally Posted By: CincyDavid
78 degrees? I'd be bathed in sweat, sitting around in my boxers. We live in a cooler, although miserably humid climate, and keep it at 72.
Good work getting the system working again. In my old house it would die on us every 2-3 years, and it was always a capacitor. Quick call to the A/C guy, $200 service call later and the house was cool again.
You might be. I wear shorts and little else whenever I can. I usually have a fan on me (sailors like moving air). At night, the t-stat drops to 75F and I sleep under a ceiling fan on HIGH. The low indoor humidity allows this. Currently the outdoor solar heat index is 120F. Ambient is 104F. So 78F is a 25% drop when you walk inside. My neighbors comment on 'how cold' it is inside my house. They're very surprised when I show them both the t-stat and indoor weather station display. It's the low indoor humidity level. It makes the outdoor humidity + sweat rapidly evaporate off your skin resulting in a chill.
If you live in a humid environment, indoor humidity removal is very important. You need a cold evap. coil + plenty of CFM across it and throughout your house. That means enough velocity out of your vents to push cold, dry air all the way across the room before it falls to the floor. Up where you are, your vents are probably in the floor vs. the ceiling. You'd never see that arrangement down here. No basements here either. Totally different paradigm.
This brings up another issue: HVAC A/C filters. They're never meant to 'keep your house dust free', further many systems don't even generate enough pressure to force the air all the way across a room with even a cheap filter! You need enough pressure to overcome all of the pressure drops across the filter, the dist. plenum, the ductwork, the buckets & the grilles to move that kind of air. Otherwise, the air piddles out of the grilles and immediately falls to the floor. In your area, it may barely rise out of the floor registers instead of arc up, over and across the room to thoroughly mix.
Capacitors are easy and it pays to only use made-in-the-USA High-quality ones given the prevalance of capacitor rot/junk from China & Mexico. My original GE caps made in NY back in the 80's lasted for nearly 20 years. They were replaced with GE's now made in Mexico. Those bulged within a few years. (Junk). GE-Mexico caps weren't cheap $$-wise either. I bought them at an old-school motor shop that rewinds commercial electrical motors thinking I was getting a better capacitor than the cheap chinese junk. Nope...
78 degrees? I'd be bathed in sweat, sitting around in my boxers. We live in a cooler, although miserably humid climate, and keep it at 72.
Good work getting the system working again. In my old house it would die on us every 2-3 years, and it was always a capacitor. Quick call to the A/C guy, $200 service call later and the house was cool again.
You might be. I wear shorts and little else whenever I can. I usually have a fan on me (sailors like moving air). At night, the t-stat drops to 75F and I sleep under a ceiling fan on HIGH. The low indoor humidity allows this. Currently the outdoor solar heat index is 120F. Ambient is 104F. So 78F is a 25% drop when you walk inside. My neighbors comment on 'how cold' it is inside my house. They're very surprised when I show them both the t-stat and indoor weather station display. It's the low indoor humidity level. It makes the outdoor humidity + sweat rapidly evaporate off your skin resulting in a chill.
If you live in a humid environment, indoor humidity removal is very important. You need a cold evap. coil + plenty of CFM across it and throughout your house. That means enough velocity out of your vents to push cold, dry air all the way across the room before it falls to the floor. Up where you are, your vents are probably in the floor vs. the ceiling. You'd never see that arrangement down here. No basements here either. Totally different paradigm.
This brings up another issue: HVAC A/C filters. They're never meant to 'keep your house dust free', further many systems don't even generate enough pressure to force the air all the way across a room with even a cheap filter! You need enough pressure to overcome all of the pressure drops across the filter, the dist. plenum, the ductwork, the buckets & the grilles to move that kind of air. Otherwise, the air piddles out of the grilles and immediately falls to the floor. In your area, it may barely rise out of the floor registers instead of arc up, over and across the room to thoroughly mix.
Capacitors are easy and it pays to only use made-in-the-USA High-quality ones given the prevalance of capacitor rot/junk from China & Mexico. My original GE caps made in NY back in the 80's lasted for nearly 20 years. They were replaced with GE's now made in Mexico. Those bulged within a few years. (Junk). GE-Mexico caps weren't cheap $$-wise either. I bought them at an old-school motor shop that rewinds commercial electrical motors thinking I was getting a better capacitor than the cheap chinese junk. Nope...
