Super high HVAC quote, does this seem legit?
Mike J
3 years ago
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super insulated...what HVAC system to pair with?
Comments (15)thanks for the replies. I will try to touch on some of the questions: I am getting about 4 different load calcs, along with my own which include loading my Revit model into Autodeck Green Studio which analyzes everything and produces costs and loads. So once those start to get in, we can compare everything for similarities. For wells, we are building on about 1 acre. However we also need a septic in that space, so that eats up some. The house is modest size, with a footprint of around 58'x36'. There should be space for 2-3 tons worth of horizontal. THe guy digging my basement and septic can also dig trenches for the ground loops. However vertical wells cost around $2k in my area, depending on the depth of course. Most like to size up .5-1 tons worth of well around here. all windows will have coverings on them. I am toying with making the north glass triple pane. it would be roughly 800 for that upgrade for the north windows. According to the cost vs savings, that is a pay off of around 11 years....over high performance duel pane. not sure its worth it at all. I am way ahead to put in some nicer insulated shades instead of the glass. Looks nicer and is more efficient. Any thoughts on the more "DIY" approach? Meaning supply the products and just hire out the install? I have subs that can do vertical wells, grouting and hooking them up to the system for about $2k per well. I am not sure how many I need just yet, depending on the depth obviously. It looks like I can buy everything I need for 8k or less. Plus wells and install costs, I am probably around 15k or less, maybe....See MoreAdvice needed on quote for hvac replacement
Comments (9)mike_home: I was implying that most contractors agreed that i have the right equipment and not that the software read "you have the right equipment" ... lol. I did receive more than 3 bids/proposals. The cost of the equipment was very similar in all 5/6 bids. The only difference was in the cost of the add-ons like "accu-clean" etc. The reason i was tending to choose the quoted contractor was the warranty aspect and lower cost of add-on equipment. mike_home/tigerdunes: I will try and get my hands on the load calculations and share with you guys if/when available. tigerdunes: I will inquire about your suggested thermostat wrt prices. Are there any more models you would like to recommend? North texans have been constantly bombarded with advertisements for "NEST - Learning Thermostat". what are your opinions on those? They seem super pricey, especially if i have to buy 3 of them :) I am surprised that the contractor will provide a thermostat that will not be able to utilize all the features of the equipment. Is this standard practice in this industry ? Thanks a ton for all the responses. Sri...See Morenew 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 MoreOutdoor HVAC Unit - Newer Homes seem super small?
Comments (32)>HVAC contracting space is filled with more contractors who don't know what they're doing than ones who do. In my experience it is filled with contractors who are aware BUT unwilling to do the work properly. Unwilling to use Nitro when brazing because it runs out really fast esp when taking a cellphone while N tank is running. Unwilling to wait 30 minutes to remove all air from the system and unwilling to use the micron gage properly, unwilling to charge properly (If you ran system for 3 minutes and disconnected the gauges) unwilling to replace a dryer when system was open, unwilling to replace lineset, unwilling to ManJ sizing, unwilling ManS, ManD unwilling to secure flexi ducts to booth instead of one strap on outside, unwilling to mastic, or unwilling to use proper hangers, unwilling to verify combustion, unwilling to install a drain correctly...See MoreMike J
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3 years agoCharles Ross Homes
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3 years agolast modified: 3 years agoMike J
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