Just purchased installation from Home Depot. Locally Ottawa, ON, Home Depot simply jobs it out to one of our local HVAC contractors BBB members, etc. This seems to be common Home Depot practice local contractors win the Home Depot lottery, and get the work for a year. The advantage you have is the big stick that Home Depot has over them Unfortunately, the Home Depot contractor we had quote on our needs was a completely arrogant twit, and an expert who had the weirdest ideas, and a general intolerable smugness about his knowledge. He simply declined to quote on a 1. If a contractor wont explain what they want to do, or gives vague answers, theyre toastP. S. Although I am very happy with our chosen contractor and their professionalism and helpfulness. Contrary to some of the assertions in this community, HVAC is not rocket science, its simple fluid dynamics with an incredibly broad range of acceptable solutions, and the end game is a completely subjective concept of comfort. I warmcoldYou could do CFD modeling of your home, but the bottom line is that theres a huge fudge factor available in residential HVAC, and rarely is there a right answer, particularly with multi stage furnaces and variable speed fans. Elite Software 30 hvac software programs for all aspects of hvac, plumbing and electrical System Design. HVAC Computer Systems supplies the easiest to use Residential Load Calculation program for Win 95. Designed By Contractors, For Contractors Geting ready to replace two units in our Dallasarea home one 3. Carrier 16 SEER units. What exactly is the difference. Which is the best HVAC system Which is the most efficient air conditioner, furnace or heat pump presented by. Energy Marketing Service. This report is intended to. Wrightsoft HVAC software is the complete solution for HVAC Load calculations, system design and sales requirements. The HVAC Buyers Guide. Buying a new furnace, air conditioner or ducts for your home The wellworn practice of getting three bids, asking for references and. HVAC load calculation software you are using and whats your comment and experience Im looking for residentialcommercial HVAC load. HVACTalk Heating, Air Refrigeration Discussion. Both of them are wrong. The only way to size correctly is with a load calculation. Carriers Hourly Analysis Program is two powerful tools in one package versatile features for designing HVAC systems for commercial buildings AND powerful energy. Web portal for buildingrelated information with a whole building focus provided by the National Institute of Building Sciences. Areas include Design Guidance. WC/UL/MY-1794556/double-skin-air-handling-units-a-h-u-500x500.jpg' alt='Carrier Hvac Calculation Software' title='Carrier Hvac Calculation Software' />How many residential HVAC installers are a P. Eng oddly enough, our contractorowner is Quite a few of them certainly seem to consider that their time is worth as much End of general rant. Edited by hpdude. Carrier Performance Series vs Comfort Series. House is one story, rooms total roughly 2,4. Lot of windows, but have been replaced with very energy efficient Simonton vinyls low e, argon gas, etc. I often work from home, so the heatAC will frequently be on in the living areas all day. Two Options. Option 1. Main Living Area. ACC6. 42 3. 5 ton, using R 4. ACNPHP0. 48. 21. ALA coil. PHA0. 90 1 1. 6 Boost 8. Furnace. Bedrooms. ACC6. 30 2. 5 ton, using R 4. ACNPHP0. 30. 17. ALA coil. PHA0. 70 1 1. 7 Boost 8. Edge t stats. Both systems will have supply and return plenums, 4 filters, filter dryers. Both will also have duct work done enlarge returns, and add two main trunks to supplies. Total cost 1. 5,5. Option 2. Main Living Area. ABB3. 42 3. 5 ton, using R 4. ACNPHP0. 42. 21. ALA coil. STA0. 90 1 1. 6 Furnace. Bedrooms. 24. ABB3. Matlab Torrent With Cracks more. R 4. 10. ACNPHP0. ALA coil. 58. STA0. Programmable t stats. Both systems will have supply and return plenums, 4 filters, filter dryers. Both will also have duct work done enlarge returns, and add two main trunks to supplies. Total cost 1. 2,6. So, assuming that these are all proper, will the Performance system over its life deliver additional comfort and cost savings to warrant the extra 3,0. This post was edited by mrjones on Tue, Jul 3.